Xelix is seeking a Principal Team Lead (Front End) in Greater London to provide technical leadership and managerial oversight for a frontend team. Responsibilities include managing Tech Team Leads, refining frontend architecture standards, and driving a performance strategy. The ideal candidate has proven experience in leading multiple teams, extensive knowledge of React applications, strong coaching skills, and excellent communication abilities. The position offers a competitive salary range of £85,000-£125,000 and hybrid working arrangements.
16/05/2026
Full time
Xelix is seeking a Principal Team Lead (Front End) in Greater London to provide technical leadership and managerial oversight for a frontend team. Responsibilities include managing Tech Team Leads, refining frontend architecture standards, and driving a performance strategy. The ideal candidate has proven experience in leading multiple teams, extensive knowledge of React applications, strong coaching skills, and excellent communication abilities. The position offers a competitive salary range of £85,000-£125,000 and hybrid working arrangements.
About the role Principal Team Lead (Front End) Reports to: VP of Engineering Direct reports: 3-5 Frontend Tech Team Leads Hybrid role combining technical leadership, organisational strategy, and people management. What you'll be doing People Leadership Manage and grow 3-5 Tech Team Leads, coaching on leadership, delivery, and technical excellence. Support career development plans and performance reviews for the Tech Team Leads and their direct reports. Promote and exemplify the Xelix Culture Behaviours (Be Productive, Be Proactive, Keep Improving and Be Collaborative). Assist with defining team structures, e.g. squad formation, and defining ways of working for teams. Frontend Technical Strategy & Alignment Define and maintain frontend architecture standards (React + TypeScript), ensuring consistency across squads. Set conventions for component architecture, routing, state management, and data fetching patterns. Support the design system and shared component library direction, including governance and adoption. Drive front end performance strategy and ensure teams have the tooling to measure and improve it. Establish frontend observability best practices (error monitoring, user impact visibility, and actionable dashboards). Stay hands on by reviewing key code, participating in design sessions, and providing technical guidance. Contribute to the codebase (approximately 30 % of your time). Introduce tools and techniques to help the tech team go faster. Delivery & Quality Ensure your teams are delivering code every day. Define and champion the Software Development Lifecycle (SDLC) process. Act as a quality guardian through code reviews, incident management and developer training. Promote the use of AI by the engineering team. Cross Team Leadership Act as a trusted liaison between Senior Leadership and Tech Leads, balancing strategic priorities with team realities. Facilitate collaboration across squads for shared services and platform initiatives. What you'll bring Proven experience leading multiple teams or managers. Deep experience building and scaling React applications (ideally with TypeScript). Strong understanding of front end architecture and modern web fundamentals (performance, browser constraints, and build tooling). Experience setting direction for testing strategy across the frontend (unit/component/e2e). Excellent coaching and mentoring skills; ability to develop strong leaders. Experience scaling engineering teams from 5 to 50 engineers is a plus. Strong communication and influence skills, with a servant leadership mindset. What we offer in return Competitive salary of £85,000 £125,000 depending on experience. 27 days of annual leave (including 3 days Christmas closing) which increases up to 3 days based on tenure, with the option to roll over, buy or sell up to 3 days. Hybrid working with one day a week from our dog friendly Hoxton office. On site gym and cycle to work scheme. Employee discount at over 100 retailers. Comprehensive private medical & dental cover with Vitality. Enhanced parental leave pay. Learning & development culture - £1,000 personal annual budget. We're carbon neutral and are working towards ambitious carbon reduction goals. Lots of team socials & activities. Annual team retreat. We believe that people from diverse backgrounds, with different identities and experiences make our company and product better. No matter your background, we'd love to hear from you! And if you have a disability, please let us know if there's any way we can make the interview process better for you - we're happy to accommodate! This is a full-time position, with standard working hours from 9:00 AM to 6:00 PM, Monday through Friday.
16/05/2026
Full time
About the role Principal Team Lead (Front End) Reports to: VP of Engineering Direct reports: 3-5 Frontend Tech Team Leads Hybrid role combining technical leadership, organisational strategy, and people management. What you'll be doing People Leadership Manage and grow 3-5 Tech Team Leads, coaching on leadership, delivery, and technical excellence. Support career development plans and performance reviews for the Tech Team Leads and their direct reports. Promote and exemplify the Xelix Culture Behaviours (Be Productive, Be Proactive, Keep Improving and Be Collaborative). Assist with defining team structures, e.g. squad formation, and defining ways of working for teams. Frontend Technical Strategy & Alignment Define and maintain frontend architecture standards (React + TypeScript), ensuring consistency across squads. Set conventions for component architecture, routing, state management, and data fetching patterns. Support the design system and shared component library direction, including governance and adoption. Drive front end performance strategy and ensure teams have the tooling to measure and improve it. Establish frontend observability best practices (error monitoring, user impact visibility, and actionable dashboards). Stay hands on by reviewing key code, participating in design sessions, and providing technical guidance. Contribute to the codebase (approximately 30 % of your time). Introduce tools and techniques to help the tech team go faster. Delivery & Quality Ensure your teams are delivering code every day. Define and champion the Software Development Lifecycle (SDLC) process. Act as a quality guardian through code reviews, incident management and developer training. Promote the use of AI by the engineering team. Cross Team Leadership Act as a trusted liaison between Senior Leadership and Tech Leads, balancing strategic priorities with team realities. Facilitate collaboration across squads for shared services and platform initiatives. What you'll bring Proven experience leading multiple teams or managers. Deep experience building and scaling React applications (ideally with TypeScript). Strong understanding of front end architecture and modern web fundamentals (performance, browser constraints, and build tooling). Experience setting direction for testing strategy across the frontend (unit/component/e2e). Excellent coaching and mentoring skills; ability to develop strong leaders. Experience scaling engineering teams from 5 to 50 engineers is a plus. Strong communication and influence skills, with a servant leadership mindset. What we offer in return Competitive salary of £85,000 £125,000 depending on experience. 27 days of annual leave (including 3 days Christmas closing) which increases up to 3 days based on tenure, with the option to roll over, buy or sell up to 3 days. Hybrid working with one day a week from our dog friendly Hoxton office. On site gym and cycle to work scheme. Employee discount at over 100 retailers. Comprehensive private medical & dental cover with Vitality. Enhanced parental leave pay. Learning & development culture - £1,000 personal annual budget. We're carbon neutral and are working towards ambitious carbon reduction goals. Lots of team socials & activities. Annual team retreat. We believe that people from diverse backgrounds, with different identities and experiences make our company and product better. No matter your background, we'd love to hear from you! And if you have a disability, please let us know if there's any way we can make the interview process better for you - we're happy to accommodate! This is a full-time position, with standard working hours from 9:00 AM to 6:00 PM, Monday through Friday.
Xelix is hiring a GTM Engineer in Greater London to design and implement systems that power their commercial team. This senior role requires hands-on experience with AI tooling, data enrichment, and a strong understanding of B2B SaaS sales. As a GTM Engineer, you'll automate manual tasks, enhance data quality, and develop scalable workflows across tools like HubSpot and others. Xelix offers a competitive salary, 27 days of annual leave, hybrid working options, and a learning & development culture.
14/05/2026
Full time
Xelix is hiring a GTM Engineer in Greater London to design and implement systems that power their commercial team. This senior role requires hands-on experience with AI tooling, data enrichment, and a strong understanding of B2B SaaS sales. As a GTM Engineer, you'll automate manual tasks, enhance data quality, and develop scalable workflows across tools like HubSpot and others. Xelix offers a competitive salary, 27 days of annual leave, hybrid working options, and a learning & development culture.
About us At Xelix, we work with some of the world's largest companies to automate and strengthen their financial controls. Our AI solutions redefine how Accounts Payable teams operate - moving from manual processes to automated, intelligent workflows. Xelix is a fast paced scale up - things move fast and expectations are high. We raised our Series B with Insight Partners in June 2025 and are expanding aggressively, whilst remaining profitable. We have over 100 talented people pulling together to achieve our goals. Everyone is trusted to take ownership, move fast and have a meaningful impact. We prioritise personal and professional growth, keep things fun & we love to celebrate a milestone together. In this role you'll grow, be challenged and help shape the future of Xelix. If you're excited about building something special with us, we'd love to hear from you. About the role We're hiring a GTM Engineer to architect and build the systems that power our commercial organisation. This is a senior individual contributor role for someone who thinks in systems and data. You build for scale and treat manual work as a problem to be solved, not a task to be done. You'll own the design and implementation of GTM infrastructure across our commercial stack: HubSpot, Gong, Outreach, our enrichment tools, and the AI tooling we're increasingly weaving into how we sell. You'll partner with the Sales leaders, Head of Revenue Operations to set technical direction, and work alongside our RevOps Analyst and Sales Enablement Manager to deliver outcomes. The brief is straightforward: anything that is consuming significant time by our commercial teams (SDR, AE and Account Management) should be automated if possible. Anything that requires judgement should be augmented with the best tooling available. Sales should spend their time selling. This role exists because we want to build operating leverage and give our commercial team superpowers through automation and AI. If you've been waiting for a role where the mandate is "build it properly," this is it. What you'll be doing Build commercial infrastructure that scales. Design and implement workflows in HubSpot and across our wider stack that handle routing, scoring, enrichment, lifecycle management, and handoffs without manual intervention. Replace bespoke one off work with templated, repeatable systems. Level up the solution architecture capabilities across the team. Own the enrichment and data quality layer. Take ownership of our enrichment stack (currently ZoomInfo, LinkedIn Sales Navigator, and with planned additions potentially including other tools such as Clay or CommonRoom). Build pipelines that produce clean, accurate, fit scored data. Set the standard for what good data looks like at Xelix. Automate reporting. Templatise it and build dashboards and models that require minimal manual updating. Build AI augmented workflows. Our investors and leadership are bullish on AI, and so are we. You'll prototype and deploy AI agents and LLM powered tooling for tasks like lead qualification, account research, RFP response, call analysis, and content generation. You'll have latitude to experiment, but production deployments need to be reliable, secure, and measurably better than what they replace. Level up our technical capabilities. Work with other members of the team to level up their technical sophistication and help them design and deploy effective processes. What you'll bring You probably won't have done all of these, but you should have done most: Hands on AI/LLM experience. You've built or deployed AI agents, used LLM APIs in production workflows, or integrated AI tooling into commercial processes. This might include Claude, MCP tools, or an agent building tool. You're discerning about how to use LLMs, and understand where LLMs add value and where they don't. Data enrichment expertise. You've worked with enrichment platforms, understand match logic and deduplication, and have opinions about what good data quality looks like. You've cleaned up other people's messes before. A builder's mindset. When you see manual work, you immediately think about how to automate it. You'd rather spend two days building something repeatable than two hours doing it manually. Good commercial instincts. You understand B2B SaaS sales motions, how SDRs and AEs actually work, and what makes commercial teams effective. You're not building in isolation, but to make the business better. Senior IC operating style. You can scope work, prioritise, push back when needed, and ship without close oversight. You're comfortable being the technical SME on a small team. Technical depth (at least one of these): A track record of building commercial systems at scale. You've architected workflows in HubSpot (ideally), or Salesforce that go beyond standard configuration: custom objects, complex routing, lifecycle automation, integrations with multiple tools. We'll want to see specific examples. Or, fluency with low code automation platforms. You've built things in tools like Clay, n8n, Make, Zapier, or similar. You know which to reach for and when. If you've stood up Clay specifically, that's a strong signal. Or, significant data wrangling skills. The ability to write SQL or Python is a plus. You can build complex models in spreadsheets at a high level of proficiency. What we offer in return Competitive salary depending on experience. 27 days of annual leave (including 3 days Christmas closing), with the option to roll over 3 days. Hybrid working with three days a week from our dog friendly Hoxton office and on site gym. Comprehensive private medical & dental cover with Vitality. Enhanced parental leave pay. Learning & development culture - £1,000 personal annual budget. We're carbon neutral and are working towards ambitious carbon reduction goals. Lots of team socials & activities. Annual team retreat. We believe that people from diverse backgrounds, with different identities and experiences make our company and product better. No matter your background, we'd love to hear from you! And if you have a disability, please let us know if there's any way we can make the interview process better for you - we're happy to accommodate! This is a full time position, with standard working hours from 9:00 AM to 6:00 PM, Monday through Friday. We are not currently planning on expanding our list of recruiting agencies. Neither the Talent team nor hiring managers or the Support team will respond to cold outreach.
14/05/2026
Full time
About us At Xelix, we work with some of the world's largest companies to automate and strengthen their financial controls. Our AI solutions redefine how Accounts Payable teams operate - moving from manual processes to automated, intelligent workflows. Xelix is a fast paced scale up - things move fast and expectations are high. We raised our Series B with Insight Partners in June 2025 and are expanding aggressively, whilst remaining profitable. We have over 100 talented people pulling together to achieve our goals. Everyone is trusted to take ownership, move fast and have a meaningful impact. We prioritise personal and professional growth, keep things fun & we love to celebrate a milestone together. In this role you'll grow, be challenged and help shape the future of Xelix. If you're excited about building something special with us, we'd love to hear from you. About the role We're hiring a GTM Engineer to architect and build the systems that power our commercial organisation. This is a senior individual contributor role for someone who thinks in systems and data. You build for scale and treat manual work as a problem to be solved, not a task to be done. You'll own the design and implementation of GTM infrastructure across our commercial stack: HubSpot, Gong, Outreach, our enrichment tools, and the AI tooling we're increasingly weaving into how we sell. You'll partner with the Sales leaders, Head of Revenue Operations to set technical direction, and work alongside our RevOps Analyst and Sales Enablement Manager to deliver outcomes. The brief is straightforward: anything that is consuming significant time by our commercial teams (SDR, AE and Account Management) should be automated if possible. Anything that requires judgement should be augmented with the best tooling available. Sales should spend their time selling. This role exists because we want to build operating leverage and give our commercial team superpowers through automation and AI. If you've been waiting for a role where the mandate is "build it properly," this is it. What you'll be doing Build commercial infrastructure that scales. Design and implement workflows in HubSpot and across our wider stack that handle routing, scoring, enrichment, lifecycle management, and handoffs without manual intervention. Replace bespoke one off work with templated, repeatable systems. Level up the solution architecture capabilities across the team. Own the enrichment and data quality layer. Take ownership of our enrichment stack (currently ZoomInfo, LinkedIn Sales Navigator, and with planned additions potentially including other tools such as Clay or CommonRoom). Build pipelines that produce clean, accurate, fit scored data. Set the standard for what good data looks like at Xelix. Automate reporting. Templatise it and build dashboards and models that require minimal manual updating. Build AI augmented workflows. Our investors and leadership are bullish on AI, and so are we. You'll prototype and deploy AI agents and LLM powered tooling for tasks like lead qualification, account research, RFP response, call analysis, and content generation. You'll have latitude to experiment, but production deployments need to be reliable, secure, and measurably better than what they replace. Level up our technical capabilities. Work with other members of the team to level up their technical sophistication and help them design and deploy effective processes. What you'll bring You probably won't have done all of these, but you should have done most: Hands on AI/LLM experience. You've built or deployed AI agents, used LLM APIs in production workflows, or integrated AI tooling into commercial processes. This might include Claude, MCP tools, or an agent building tool. You're discerning about how to use LLMs, and understand where LLMs add value and where they don't. Data enrichment expertise. You've worked with enrichment platforms, understand match logic and deduplication, and have opinions about what good data quality looks like. You've cleaned up other people's messes before. A builder's mindset. When you see manual work, you immediately think about how to automate it. You'd rather spend two days building something repeatable than two hours doing it manually. Good commercial instincts. You understand B2B SaaS sales motions, how SDRs and AEs actually work, and what makes commercial teams effective. You're not building in isolation, but to make the business better. Senior IC operating style. You can scope work, prioritise, push back when needed, and ship without close oversight. You're comfortable being the technical SME on a small team. Technical depth (at least one of these): A track record of building commercial systems at scale. You've architected workflows in HubSpot (ideally), or Salesforce that go beyond standard configuration: custom objects, complex routing, lifecycle automation, integrations with multiple tools. We'll want to see specific examples. Or, fluency with low code automation platforms. You've built things in tools like Clay, n8n, Make, Zapier, or similar. You know which to reach for and when. If you've stood up Clay specifically, that's a strong signal. Or, significant data wrangling skills. The ability to write SQL or Python is a plus. You can build complex models in spreadsheets at a high level of proficiency. What we offer in return Competitive salary depending on experience. 27 days of annual leave (including 3 days Christmas closing), with the option to roll over 3 days. Hybrid working with three days a week from our dog friendly Hoxton office and on site gym. Comprehensive private medical & dental cover with Vitality. Enhanced parental leave pay. Learning & development culture - £1,000 personal annual budget. We're carbon neutral and are working towards ambitious carbon reduction goals. Lots of team socials & activities. Annual team retreat. We believe that people from diverse backgrounds, with different identities and experiences make our company and product better. No matter your background, we'd love to hear from you! And if you have a disability, please let us know if there's any way we can make the interview process better for you - we're happy to accommodate! This is a full time position, with standard working hours from 9:00 AM to 6:00 PM, Monday through Friday. We are not currently planning on expanding our list of recruiting agencies. Neither the Talent team nor hiring managers or the Support team will respond to cold outreach.
A dynamic tech company in Greater London is seeking a React Developer to join its growing development team. You will implement user interface components using React and work collaboratively to produce clean, efficient code. The role offers competitive salary ranging from £60,000 to £75,000, hybrid working options, comprehensive medical coverage, and supports professional development with an annual budget. Strong expertise in JavaScript, React, and testing tools are required. Join us in redefining financial automation.
14/05/2026
Full time
A dynamic tech company in Greater London is seeking a React Developer to join its growing development team. You will implement user interface components using React and work collaboratively to produce clean, efficient code. The role offers competitive salary ranging from £60,000 to £75,000, hybrid working options, comprehensive medical coverage, and supports professional development with an annual budget. Strong expertise in JavaScript, React, and testing tools are required. Join us in redefining financial automation.
About us At Xelix, we work with some of the world's largest companies to automate and strengthen their financial controls. Our AI solutions redefine how Accounts Payable teams operate - moving from manual processes to automated, intelligent workflows. Xelix is a fast-paced scale-up - things move fast and expectations are high. We raised our Series B with Insight Partners in June 2025 and are expanding aggressively. We have a team 150 talented people pulling together to achieve our goals. Everyone is trusted to take ownership, move fast and have a meaningful impact. We prioritise personal and professional growth, keep things fun, and love to celebrate a milestone together. In this role you'll grow, be challenged and help shape the future of Xelix. If you're excited about building something special with us, we'd love to hear from you. About the role We're looking for a React Developer to join our growing development team. In this role, you will implement user interface components using React concepts and workflows such as Redux and RTK Query. You will also ensure that these components and the overall application are robust and easy to maintain. Our developers take pride in their work - producing clean, tested, beautiful code. Rather than give you a detailed set of requirements, we encourage engineers to take responsibility for solving the problem. There are many opportunities to innovate as you collaborate with stakeholders to design and implement new features. You will be well supported to continue your professional development. This includes an annual conference allowance, access to the O'Reilly library and a monthly session with your manager to identify and track your development goals. What you'll be doing Collaborating with designers and other developers to build websites from specifications produced in Figma. Creating visually appealing experiences using CSS3 for frontend applications. Implementing robust and scalable solutions. Developing, using and designing REST APIs and web-socket solutions to efficiently deliver application components. Performing testing and quality assurance activities on different browsers and devices to ensure compatibility and responsiveness. Implementing performance improvement strategies, testing, and measuring application performance Mentoring other team members, sharing knowledge and experience, and helping improve our team's abilities in the process. Ensuring the quality of code by writing comprehensive tests and participating in code reviews. What you'll bring Expert knowledge of modern syntax JavaScript and React. Proficiency in JavaScript, TypeScript and CSS3. Familiarity with modern application architecture and design patterns. Excellent understanding of the complete software development life cycle. Strong Computer Science fundamentals and problem-solving skills. Ability to effectively communicate complex technical concepts to team members and stakeholders. Passionate about testing, rapid iteration and collaborative problem solving. (e2e, unit tests, integration tests) Knowledge in Test tools like Playwright, Jest. Big Plus Points An interest and aptitude in data visualization, transforming complex datasets into intuitive visual representations. Skills in User Experience (UX) and User Interface (UI) design, demonstrating a keen eye for aesthetics and attention to user journeys. What we offer in return Competitive salary of £60,000 - £75,000 depending on experience ️ 27 days of annual leave (including 3 days Christmas closing), with the option to roll over 3 days Hybrid working with one day a week from our dog-friendly Hoxton office and on-site gym Comprehensive private medical & dental cover with Vitality Enhanced parental leave pay Learning & development culture - £1,000 personal annual budget We're carbon neutral and are working towards ambitious carbon reduction goals Lots of team socials & activities ️ Annual team retreat Want to learn more? About us Xelix blog Xelix news Xelix glassdoor We believe that people from diverse backgrounds, with different identities and experiences make our company and product better. No matter your background, we'd love to hear from you! And if you have a disability, please let us know if there's any way we can make the interview process better for you - we're happy to accommodate! If you're a recruiting agency - we have an existing list of agencies we work with and we are not currently planning on expanding the list. Neither the Talent team nor hiring managers or the Support team will respond to cold outreach. This is a full-time position, with standard working hours from 9:00 AM to 6:00 PM, Monday through Friday.
14/05/2026
Full time
About us At Xelix, we work with some of the world's largest companies to automate and strengthen their financial controls. Our AI solutions redefine how Accounts Payable teams operate - moving from manual processes to automated, intelligent workflows. Xelix is a fast-paced scale-up - things move fast and expectations are high. We raised our Series B with Insight Partners in June 2025 and are expanding aggressively. We have a team 150 talented people pulling together to achieve our goals. Everyone is trusted to take ownership, move fast and have a meaningful impact. We prioritise personal and professional growth, keep things fun, and love to celebrate a milestone together. In this role you'll grow, be challenged and help shape the future of Xelix. If you're excited about building something special with us, we'd love to hear from you. About the role We're looking for a React Developer to join our growing development team. In this role, you will implement user interface components using React concepts and workflows such as Redux and RTK Query. You will also ensure that these components and the overall application are robust and easy to maintain. Our developers take pride in their work - producing clean, tested, beautiful code. Rather than give you a detailed set of requirements, we encourage engineers to take responsibility for solving the problem. There are many opportunities to innovate as you collaborate with stakeholders to design and implement new features. You will be well supported to continue your professional development. This includes an annual conference allowance, access to the O'Reilly library and a monthly session with your manager to identify and track your development goals. What you'll be doing Collaborating with designers and other developers to build websites from specifications produced in Figma. Creating visually appealing experiences using CSS3 for frontend applications. Implementing robust and scalable solutions. Developing, using and designing REST APIs and web-socket solutions to efficiently deliver application components. Performing testing and quality assurance activities on different browsers and devices to ensure compatibility and responsiveness. Implementing performance improvement strategies, testing, and measuring application performance Mentoring other team members, sharing knowledge and experience, and helping improve our team's abilities in the process. Ensuring the quality of code by writing comprehensive tests and participating in code reviews. What you'll bring Expert knowledge of modern syntax JavaScript and React. Proficiency in JavaScript, TypeScript and CSS3. Familiarity with modern application architecture and design patterns. Excellent understanding of the complete software development life cycle. Strong Computer Science fundamentals and problem-solving skills. Ability to effectively communicate complex technical concepts to team members and stakeholders. Passionate about testing, rapid iteration and collaborative problem solving. (e2e, unit tests, integration tests) Knowledge in Test tools like Playwright, Jest. Big Plus Points An interest and aptitude in data visualization, transforming complex datasets into intuitive visual representations. Skills in User Experience (UX) and User Interface (UI) design, demonstrating a keen eye for aesthetics and attention to user journeys. What we offer in return Competitive salary of £60,000 - £75,000 depending on experience ️ 27 days of annual leave (including 3 days Christmas closing), with the option to roll over 3 days Hybrid working with one day a week from our dog-friendly Hoxton office and on-site gym Comprehensive private medical & dental cover with Vitality Enhanced parental leave pay Learning & development culture - £1,000 personal annual budget We're carbon neutral and are working towards ambitious carbon reduction goals Lots of team socials & activities ️ Annual team retreat Want to learn more? About us Xelix blog Xelix news Xelix glassdoor We believe that people from diverse backgrounds, with different identities and experiences make our company and product better. No matter your background, we'd love to hear from you! And if you have a disability, please let us know if there's any way we can make the interview process better for you - we're happy to accommodate! If you're a recruiting agency - we have an existing list of agencies we work with and we are not currently planning on expanding the list. Neither the Talent team nor hiring managers or the Support team will respond to cold outreach. This is a full-time position, with standard working hours from 9:00 AM to 6:00 PM, Monday through Friday.
A dynamic scale-up technology company in Greater London is seeking an AI Engineer to join their expanding team. In this role, you will design and build production AI systems that leverage machine learning and large language models to tackle real-world challenges. Ideal candidates possess 2-5 years of experience in AI systems, strong Python skills, and a collaborative working style. The position offers a competitive salary of £65,000 to £75,000, along with additional benefits including hybrid working and substantial annual leave.
10/05/2026
Full time
A dynamic scale-up technology company in Greater London is seeking an AI Engineer to join their expanding team. In this role, you will design and build production AI systems that leverage machine learning and large language models to tackle real-world challenges. Ideal candidates possess 2-5 years of experience in AI systems, strong Python skills, and a collaborative working style. The position offers a competitive salary of £65,000 to £75,000, along with additional benefits including hybrid working and substantial annual leave.
About us At Xelix, we work with some of the world's largest companies to automate and strengthen their financial controls. Our AI solutions redefine how Accounts Payable teams operate - moving from manual processes to automated, intelligent workflows. Xelix is a fast paced scale-up - things move fast and expectations are high. We raised our Series B with Insight Partners in June 2025 and are expanding aggressively. We have a team 150 talented people pulling together to achieve our goals. Everyone is trusted to take ownership, move fast and have a meaningful impact. We prioritise personal and professional growth, keep things fun, and love to celebrate a milestone together. In this role you'll grow, be challenged and help shape the future of Xelix. If you're excited about building something special with us, we'd love to hear from you. About the role We are hiring an AI Engineer to join our growing AI Engineering team. You'll design and build production AI systems - combining machine learning, large language models, and strong engineering - to solve real problems across documents, email, and financial data. We focus on building systems that work reliably in production, not just prototypes. We use modern AI tools extensively in our workflow, enabling engineers to operate at a higher level - focusing on system design, product thinking, and solving complex problems. What you'll be doing AI Systems & Agents: design and build production AI systems - including agent based workflows, tool use, and multi step reasoning. Model Development & Adaptation: develop and improve models across text, vision, and structured data, including fine tuning and hybrid ML + LLM approaches. LLM Platform Work: work with hosted and self hosted models, contributing to decisions around model selection, performance, and cost. Production Engineering: write clean, maintainable Python and contribute to scalable, observable systems. Evaluation & Iteration: design evals, measure performance rigorously, and improve systems using real world feedback. AI Assisted Development: use modern AI coding tools to move faster while maintaining high standards. Collaboration: work closely with product and engineering teams to deliver high impact features. What you'll bring Experience: 2-5 years building and shipping ML or AI powered systems into production. Strong Engineering Skills: clean, testable Python; solid software design; experience working in production environments. AI/ML Breadth: experience with either traditional ML (e.g. gradient boosting) and/or LLM systems (prompting, tool use, evals, agents). Systems Thinking: ability to reason about trade offs (accuracy, latency, cost, reliability) and design accordingly. Data Skills: SQL, pandas, and experience working with messy real world data. AI Native Workflow: comfortable using AI assisted coding tools effectively. Curiosity & Ownership: proactive in exploring new approaches and improving existing systems. Collaboration: strong cross functional working style. What we offer in return Competitive salary of £65,000 to £75,000 depending on experience ️ 27 days of annual leave (including 3 days Christmas closing) which increases up to 3 days based on tenure, with the option to roll over, buy or sell up to 3 days Hybrid working with two days a week from our dog friendly Hoxton office On site gym and cycle to work scheme ️ Employee discount at over 100 retailers Comprehensive private medical & dental cover with Vitality Enhanced parental leave pay Learning & development culture - £1,000 personal annual budget We've carbon neutral and are working towards ambitious carbon reduction goals Lots of team socials & activities ️ Annual team retreat Want to learn more? About us Xelix blog Xelix news Xelix glassdoor We believe that people from diverse backgrounds, with different identities and experiences make our company and product better. No matter your background, we'd love to hear from you! And if you have a disability, please let us know if there's any way we can make the interview process better for you - we're happy to accommodate! If you're a recruiting agency - we have an existing list of agencies we work with if required and we are not currently planning on expanding the list. Neither the Talent team nor hiring managers or the Support team will respond to cold outreach. This is a full time position, with standard working hours from 9:00 AM to 6:00 PM, Monday through Friday. Interview Process Introductory Call - A short Teams conversation with a Talent Partner to discuss your background and the opportunity. Hiring Manager Interview - A 30-45 minute Teams meeting to explore your experience and fit for the team. Technical Task or Presentation - A role relevant exercise to demonstrate your skills and approach. Final On site Interview - An in person meeting with our senior leadership team and co founders at our office. We strive to make the process clear, efficient, and respectful of your time.
10/05/2026
Full time
About us At Xelix, we work with some of the world's largest companies to automate and strengthen their financial controls. Our AI solutions redefine how Accounts Payable teams operate - moving from manual processes to automated, intelligent workflows. Xelix is a fast paced scale-up - things move fast and expectations are high. We raised our Series B with Insight Partners in June 2025 and are expanding aggressively. We have a team 150 talented people pulling together to achieve our goals. Everyone is trusted to take ownership, move fast and have a meaningful impact. We prioritise personal and professional growth, keep things fun, and love to celebrate a milestone together. In this role you'll grow, be challenged and help shape the future of Xelix. If you're excited about building something special with us, we'd love to hear from you. About the role We are hiring an AI Engineer to join our growing AI Engineering team. You'll design and build production AI systems - combining machine learning, large language models, and strong engineering - to solve real problems across documents, email, and financial data. We focus on building systems that work reliably in production, not just prototypes. We use modern AI tools extensively in our workflow, enabling engineers to operate at a higher level - focusing on system design, product thinking, and solving complex problems. What you'll be doing AI Systems & Agents: design and build production AI systems - including agent based workflows, tool use, and multi step reasoning. Model Development & Adaptation: develop and improve models across text, vision, and structured data, including fine tuning and hybrid ML + LLM approaches. LLM Platform Work: work with hosted and self hosted models, contributing to decisions around model selection, performance, and cost. Production Engineering: write clean, maintainable Python and contribute to scalable, observable systems. Evaluation & Iteration: design evals, measure performance rigorously, and improve systems using real world feedback. AI Assisted Development: use modern AI coding tools to move faster while maintaining high standards. Collaboration: work closely with product and engineering teams to deliver high impact features. What you'll bring Experience: 2-5 years building and shipping ML or AI powered systems into production. Strong Engineering Skills: clean, testable Python; solid software design; experience working in production environments. AI/ML Breadth: experience with either traditional ML (e.g. gradient boosting) and/or LLM systems (prompting, tool use, evals, agents). Systems Thinking: ability to reason about trade offs (accuracy, latency, cost, reliability) and design accordingly. Data Skills: SQL, pandas, and experience working with messy real world data. AI Native Workflow: comfortable using AI assisted coding tools effectively. Curiosity & Ownership: proactive in exploring new approaches and improving existing systems. Collaboration: strong cross functional working style. What we offer in return Competitive salary of £65,000 to £75,000 depending on experience ️ 27 days of annual leave (including 3 days Christmas closing) which increases up to 3 days based on tenure, with the option to roll over, buy or sell up to 3 days Hybrid working with two days a week from our dog friendly Hoxton office On site gym and cycle to work scheme ️ Employee discount at over 100 retailers Comprehensive private medical & dental cover with Vitality Enhanced parental leave pay Learning & development culture - £1,000 personal annual budget We've carbon neutral and are working towards ambitious carbon reduction goals Lots of team socials & activities ️ Annual team retreat Want to learn more? About us Xelix blog Xelix news Xelix glassdoor We believe that people from diverse backgrounds, with different identities and experiences make our company and product better. No matter your background, we'd love to hear from you! And if you have a disability, please let us know if there's any way we can make the interview process better for you - we're happy to accommodate! If you're a recruiting agency - we have an existing list of agencies we work with if required and we are not currently planning on expanding the list. Neither the Talent team nor hiring managers or the Support team will respond to cold outreach. This is a full time position, with standard working hours from 9:00 AM to 6:00 PM, Monday through Friday. Interview Process Introductory Call - A short Teams conversation with a Talent Partner to discuss your background and the opportunity. Hiring Manager Interview - A 30-45 minute Teams meeting to explore your experience and fit for the team. Technical Task or Presentation - A role relevant exercise to demonstrate your skills and approach. Final On site Interview - An in person meeting with our senior leadership team and co founders at our office. We strive to make the process clear, efficient, and respectful of your time.
About us We're Xelix, an AI-powered Control Centre for Accounts Payable teams. We work with some of the largest global companies to automate and enhance their financial control processes. At the heart of our product, we leverage machine learning techniques developed by our AI Engineering team to provide a more sophisticated offering than existing solutions. Things are going really well for us - we raised our Series A funding round from top investors, we've grown our team to almost 100, and we've won industry awards for our products. About the role We're looking for an experienced, hands on Senior Account Manager to join our fast growing scale up. This is a proactive, commercially minded role: you'll own the relationship and renewal, identify and create expansion opportunities, and ensure customers realise (and can clearly evidence) the value Xelix delivers. You'll partner closely with Sales, Product and Services to drive adoption, outcomes and long term account growth. What you'll be doing Own a portfolio of our highest tier customers, acting as a trusted advisor and commercial lead across renewal and growth. Build and execute Customer Success Plans (CSPs) with clear outcomes, milestones, stakeholders and value hypotheses. Quantify, track and communicate value realisation (ROI/business impact), preparing and presenting success metrics and commercial narratives to executive sponsors and C suite stakeholders. Develop a deep understanding of each customer's priorities, operating model, systems landscape, and roadmap-using this to shape account strategy and unlock expansion. Run proactive account governance (e.g., EBRs/QBRs), ensuring adoption, stakeholder engagement and action plans stay on track. Monitor customer health and engagement to identify risk early, lead retention plans, and mobilise internal teams to protect and grow revenue. Identify, qualify and progress upsell/cross sell opportunities, building business cases, aligning stakeholders, and partnering with AEs/founders where needed to close. Lead renewals end to end: timeline management, commercial negotiation support, stakeholder alignment, and forecasting accuracy. Triage technical and non technical issues with urgency and strong judgement, coordinating the right internal resources while keeping customers informed and confident. Be the voice of the customer internally: capture product feedback, influence prioritisation with evidence, and manage expectations on deliverables and timelines. Stay close to market trends and competitive landscape, contributing to strategic initiatives that improve our commercial approach and customer outcomes. What you'll bring At least 3 years experience in Account Management / Customer Success in B2B SaaS (or a consultative commercial role), owning senior stakeholder relationships and outcomes across a portfolio. You have ample experience in managing complex enterprise customers, involving six figure ACVs and engagement at senior levels. Demonstrable commercial track record: leading renewals, retaining revenue, and creating growth through upsell/cross sell (with clear examples of how you sourced, shaped and progressed opportunities). Strong value based selling and storytelling skills: you can quantify impact, build a business case, and present success metrics/ROI confidently to executive sponsors and C suite. Experience running structured account governance (e.g., CSPs, QBRs/EBRs, exec sponsor plans), translating customer goals into measurable plans and driving them to completion. Comfortable managing complex, multi stakeholder enterprise accounts-navigating economic buyers, decision makers, champions and influence networks to drive change. Proficient in MEDDPICC or similar sales methodology Evidence of proactively identifying risk and leading "save plans": diagnosing root causes, mobilising internal teams, and executing clear recovery plans with pace and accountability. Strong cross functional leadership: you're effective at coordinating Product, Delivery/Implementation, Support and Sales to unblock customers and deliver outcomes, without needing formal authority. Analytical and systems minded: you enjoy using data (usage, outcomes, financials) to spot patterns, forecast risk, and prioritise where to invest time for maximum impact. Technically curious and quick to learn: you can understand customer environments and product capabilities well enough to advise, educate and credibly challenge. Excellent prioritisation and execution in a fast paced environment; you can manage multiple workstreams, run a tight cadence, and keep stakeholders aligned. Clear, direct communicator with high ownership: you follow through, set expectations well, and bring energy and professionalism to customer interactions. What we offer in return Competitive salary of £55,000 - £70,000 depending on experience+ commission ️ 27 days of annual leave (including 3 days Christmas closing), with the option to roll over 3 days Hybrid working with two days a week from our dog friendly Hoxton office and on site gym Comprehensive private medical & dental cover with Vitality Enhanced parental leave pay Learning & development culture - £1,000 personal annual budget We're carbon neutral and are working towards ambitious carbon reduction goals Lots of team socials & activities ️ Annual team retreat Want to learn more? About us Xelix blog Xelix news Xelix glassdoor We believe that people from diverse backgrounds, with different identities and experiences make our company and product better. No matter your background, we'd love to hear from you! And if you have a disability, please let us know if there's any way we can make the interview process better for you - we're happy to accommodate! If you're a recruiting agency - we have an existing list of agencies we work with and we are not currently planning on expanding the list. Neither the Talent team nor hiring managers or the Support team will respond to cold outreach. This is a full time position, with standard working hours from 9:00 AM to 6:00 PM, Monday through Friday.
10/05/2026
Full time
About us We're Xelix, an AI-powered Control Centre for Accounts Payable teams. We work with some of the largest global companies to automate and enhance their financial control processes. At the heart of our product, we leverage machine learning techniques developed by our AI Engineering team to provide a more sophisticated offering than existing solutions. Things are going really well for us - we raised our Series A funding round from top investors, we've grown our team to almost 100, and we've won industry awards for our products. About the role We're looking for an experienced, hands on Senior Account Manager to join our fast growing scale up. This is a proactive, commercially minded role: you'll own the relationship and renewal, identify and create expansion opportunities, and ensure customers realise (and can clearly evidence) the value Xelix delivers. You'll partner closely with Sales, Product and Services to drive adoption, outcomes and long term account growth. What you'll be doing Own a portfolio of our highest tier customers, acting as a trusted advisor and commercial lead across renewal and growth. Build and execute Customer Success Plans (CSPs) with clear outcomes, milestones, stakeholders and value hypotheses. Quantify, track and communicate value realisation (ROI/business impact), preparing and presenting success metrics and commercial narratives to executive sponsors and C suite stakeholders. Develop a deep understanding of each customer's priorities, operating model, systems landscape, and roadmap-using this to shape account strategy and unlock expansion. Run proactive account governance (e.g., EBRs/QBRs), ensuring adoption, stakeholder engagement and action plans stay on track. Monitor customer health and engagement to identify risk early, lead retention plans, and mobilise internal teams to protect and grow revenue. Identify, qualify and progress upsell/cross sell opportunities, building business cases, aligning stakeholders, and partnering with AEs/founders where needed to close. Lead renewals end to end: timeline management, commercial negotiation support, stakeholder alignment, and forecasting accuracy. Triage technical and non technical issues with urgency and strong judgement, coordinating the right internal resources while keeping customers informed and confident. Be the voice of the customer internally: capture product feedback, influence prioritisation with evidence, and manage expectations on deliverables and timelines. Stay close to market trends and competitive landscape, contributing to strategic initiatives that improve our commercial approach and customer outcomes. What you'll bring At least 3 years experience in Account Management / Customer Success in B2B SaaS (or a consultative commercial role), owning senior stakeholder relationships and outcomes across a portfolio. You have ample experience in managing complex enterprise customers, involving six figure ACVs and engagement at senior levels. Demonstrable commercial track record: leading renewals, retaining revenue, and creating growth through upsell/cross sell (with clear examples of how you sourced, shaped and progressed opportunities). Strong value based selling and storytelling skills: you can quantify impact, build a business case, and present success metrics/ROI confidently to executive sponsors and C suite. Experience running structured account governance (e.g., CSPs, QBRs/EBRs, exec sponsor plans), translating customer goals into measurable plans and driving them to completion. Comfortable managing complex, multi stakeholder enterprise accounts-navigating economic buyers, decision makers, champions and influence networks to drive change. Proficient in MEDDPICC or similar sales methodology Evidence of proactively identifying risk and leading "save plans": diagnosing root causes, mobilising internal teams, and executing clear recovery plans with pace and accountability. Strong cross functional leadership: you're effective at coordinating Product, Delivery/Implementation, Support and Sales to unblock customers and deliver outcomes, without needing formal authority. Analytical and systems minded: you enjoy using data (usage, outcomes, financials) to spot patterns, forecast risk, and prioritise where to invest time for maximum impact. Technically curious and quick to learn: you can understand customer environments and product capabilities well enough to advise, educate and credibly challenge. Excellent prioritisation and execution in a fast paced environment; you can manage multiple workstreams, run a tight cadence, and keep stakeholders aligned. Clear, direct communicator with high ownership: you follow through, set expectations well, and bring energy and professionalism to customer interactions. What we offer in return Competitive salary of £55,000 - £70,000 depending on experience+ commission ️ 27 days of annual leave (including 3 days Christmas closing), with the option to roll over 3 days Hybrid working with two days a week from our dog friendly Hoxton office and on site gym Comprehensive private medical & dental cover with Vitality Enhanced parental leave pay Learning & development culture - £1,000 personal annual budget We're carbon neutral and are working towards ambitious carbon reduction goals Lots of team socials & activities ️ Annual team retreat Want to learn more? About us Xelix blog Xelix news Xelix glassdoor We believe that people from diverse backgrounds, with different identities and experiences make our company and product better. No matter your background, we'd love to hear from you! And if you have a disability, please let us know if there's any way we can make the interview process better for you - we're happy to accommodate! If you're a recruiting agency - we have an existing list of agencies we work with and we are not currently planning on expanding the list. Neither the Talent team nor hiring managers or the Support team will respond to cold outreach. This is a full time position, with standard working hours from 9:00 AM to 6:00 PM, Monday through Friday.
A dynamic tech scale-up in England is looking for Mid and Senior Python Developers to join its back-end team. You will implement scalable solutions, design REST APIs, and ensure code quality in a collaborative setting. This full-time role offers a competitive salary of £60,000 - £80,000, hybrid working options, ample leave, and extensive personal development budgets. Ideal candidates have 4+ years of Python experience and a strong ability to communicate technical concepts effectively, fostering innovation within a strong team culture.
10/05/2026
Full time
A dynamic tech scale-up in England is looking for Mid and Senior Python Developers to join its back-end team. You will implement scalable solutions, design REST APIs, and ensure code quality in a collaborative setting. This full-time role offers a competitive salary of £60,000 - £80,000, hybrid working options, ample leave, and extensive personal development budgets. Ideal candidates have 4+ years of Python experience and a strong ability to communicate technical concepts effectively, fostering innovation within a strong team culture.
A fast-growing AI company in the UK is seeking an experienced Senior Account Manager to drive the success of high-tier customers. In this role, you will act as a trusted advisor, overseeing renewals and identifying growth opportunities. The ideal candidate has over 3 years of experience in B2B SaaS account management, with a track record of managing complex enterprise relationships. The role offers competitive compensation, hybrid working, and extensive benefits, including private medical cover and a personal development budget.
10/05/2026
Full time
A fast-growing AI company in the UK is seeking an experienced Senior Account Manager to drive the success of high-tier customers. In this role, you will act as a trusted advisor, overseeing renewals and identifying growth opportunities. The ideal candidate has over 3 years of experience in B2B SaaS account management, with a track record of managing complex enterprise relationships. The role offers competitive compensation, hybrid working, and extensive benefits, including private medical cover and a personal development budget.
About us At Xelix, we work with some of the world's largest companies to automate and strengthen their financial controls. Our AI solutions redefine how Accounts Payable teams operate - moving from manual processes to automated, intelligent workflows. Xelix is a fast-paced scale-up - things move fast and expectations are high. We raised our Series B with Insight Partners in June 2025 and are expanding aggressively. We have a team 150 talented people pulling together to achieve our goals. Everyone is trusted to take ownership, move fast and have a meaningful impact. We prioritise personal and professional growth, keep things fun, and love to celebrate a milestone together. In this role you'll grow, be challenged and help shape the future of Xelix. If you're excited about building something special with us, we'd love to hear from you. About the role We are hiring a Senior AI Engineer to help shape our AI systems and technical direction. You'll lead the design and delivery of complex, production-grade AI solutions - combining machine learning, LLMs, and robust engineering practices to build high-impact products. We are a team of builders, focused on systems that work reliably in production, not just prototypes. We use modern AI tools extensively, enabling engineers to operate at a higher level - focusing on architecture, system design, and delivering meaningful product impact. What you'll be doing System Design & Ownership: design and lead end-to-end AI systems, from problem framing through to production deployment and iteration. Advanced AI Systems & Agents: architect complex agent-based workflows, tool ecosystems, and multi-step reasoning systems. Model Strategy: make decisions on model selection, fine-tuning, and when to use ML vs LLM vs hybrid approaches. Evaluation & Quality: define evaluation frameworks, metrics, and feedback loops to ensure reliability and continuous improvement. Production Excellence: ensure systems are scalable, observable, and robust in real-world environments. Technical Leadership: mentor other engineers, review designs, and raise the bar for engineering and AI practices across the team. AI-Assisted Engineering: drive effective use of AI tooling within the team, improving productivity without compromising quality. Cross-Functional Impact: work closely with product and leadership to shape what we build and why. What you'll bring Experience: 5+ years building and deploying ML or AI systems, with significant experience in production environments. Strong System Design Skills: ability to design end-to-end AI systems and make sound architectural decisions. Deep AI Expertise: strong experience with LLM systems (agents, tool use, evals) and/or traditional ML where appropriate. Pragmatism: ability to choose the right approach for the problem, balancing complexity, performance, and cost. Evaluation Mindset: experience designing and using evals to drive system improvements. Engineering Excellence: high standards for code quality, testing, and maintainability. Leadership & Mentorship: experience guiding other engineers and influencing technical direction. AI-Native Workflow: strong ability to leverage AI-assisted development tools effectively and thoughtfully. What we offer in return Competitive salary of £80,000 to £90,000 depending on experience ️ 27 days of annual leave (including 3 days Christmas closing) which increases up to 3 days based on tenure, with the option to roll over, buy or sell up to 3 days Hybrid working with two days a week from our dog-friendly Hoxton office On-site gym and cycle to work scheme ️ Employee discount at over 100 retailers Comprehensive private medical & dental cover with Vitality Enhanced parental leave pay Learning & development culture - £1,000 personal annual budget We're carbon-neutral and are working towards ambitious carbon reduction goals Lots of team socials & activities ️ Annual team retreat Want to learn more? About us Xelix blog Xelix news Xelix glassdoor We believe that people from diverse backgrounds, with different identities and experiences make our company and product better. No matter your background, we'd love to hear from you! And if you have a disability, please let us know if there's any way we can make the interview process better for you - we're happy to accommodate! If you're a recruiting agency - we have an existing list of agencies we work with if required and we are not currently planning on expanding the list. Neither the Talent team nor hiring managers or the Support team will respond to cold outreach. This is a full-time position, with standard working hours from 9:00 AM to 6:00 PM, Monday through Friday. Interview Process While the exact process may vary slightly depending on the role, our typical interview stages are: Introductory Call - A short Teams conversation with a Talent Partner to discuss your background and the opportunity. Hiring Manager Interview - A 30-45 minute Teams meeting to explore your experience and fit for the team. Technical Task or Presentation - A role-relevant exercise to demonstrate your skills and approach. Final On-site Interview - An in-person meeting with our senior leadership team and co-founders at our office. We strive to make the process clear, efficient, and respectful of your time.
10/05/2026
Full time
About us At Xelix, we work with some of the world's largest companies to automate and strengthen their financial controls. Our AI solutions redefine how Accounts Payable teams operate - moving from manual processes to automated, intelligent workflows. Xelix is a fast-paced scale-up - things move fast and expectations are high. We raised our Series B with Insight Partners in June 2025 and are expanding aggressively. We have a team 150 talented people pulling together to achieve our goals. Everyone is trusted to take ownership, move fast and have a meaningful impact. We prioritise personal and professional growth, keep things fun, and love to celebrate a milestone together. In this role you'll grow, be challenged and help shape the future of Xelix. If you're excited about building something special with us, we'd love to hear from you. About the role We are hiring a Senior AI Engineer to help shape our AI systems and technical direction. You'll lead the design and delivery of complex, production-grade AI solutions - combining machine learning, LLMs, and robust engineering practices to build high-impact products. We are a team of builders, focused on systems that work reliably in production, not just prototypes. We use modern AI tools extensively, enabling engineers to operate at a higher level - focusing on architecture, system design, and delivering meaningful product impact. What you'll be doing System Design & Ownership: design and lead end-to-end AI systems, from problem framing through to production deployment and iteration. Advanced AI Systems & Agents: architect complex agent-based workflows, tool ecosystems, and multi-step reasoning systems. Model Strategy: make decisions on model selection, fine-tuning, and when to use ML vs LLM vs hybrid approaches. Evaluation & Quality: define evaluation frameworks, metrics, and feedback loops to ensure reliability and continuous improvement. Production Excellence: ensure systems are scalable, observable, and robust in real-world environments. Technical Leadership: mentor other engineers, review designs, and raise the bar for engineering and AI practices across the team. AI-Assisted Engineering: drive effective use of AI tooling within the team, improving productivity without compromising quality. Cross-Functional Impact: work closely with product and leadership to shape what we build and why. What you'll bring Experience: 5+ years building and deploying ML or AI systems, with significant experience in production environments. Strong System Design Skills: ability to design end-to-end AI systems and make sound architectural decisions. Deep AI Expertise: strong experience with LLM systems (agents, tool use, evals) and/or traditional ML where appropriate. Pragmatism: ability to choose the right approach for the problem, balancing complexity, performance, and cost. Evaluation Mindset: experience designing and using evals to drive system improvements. Engineering Excellence: high standards for code quality, testing, and maintainability. Leadership & Mentorship: experience guiding other engineers and influencing technical direction. AI-Native Workflow: strong ability to leverage AI-assisted development tools effectively and thoughtfully. What we offer in return Competitive salary of £80,000 to £90,000 depending on experience ️ 27 days of annual leave (including 3 days Christmas closing) which increases up to 3 days based on tenure, with the option to roll over, buy or sell up to 3 days Hybrid working with two days a week from our dog-friendly Hoxton office On-site gym and cycle to work scheme ️ Employee discount at over 100 retailers Comprehensive private medical & dental cover with Vitality Enhanced parental leave pay Learning & development culture - £1,000 personal annual budget We're carbon-neutral and are working towards ambitious carbon reduction goals Lots of team socials & activities ️ Annual team retreat Want to learn more? About us Xelix blog Xelix news Xelix glassdoor We believe that people from diverse backgrounds, with different identities and experiences make our company and product better. No matter your background, we'd love to hear from you! And if you have a disability, please let us know if there's any way we can make the interview process better for you - we're happy to accommodate! If you're a recruiting agency - we have an existing list of agencies we work with if required and we are not currently planning on expanding the list. Neither the Talent team nor hiring managers or the Support team will respond to cold outreach. This is a full-time position, with standard working hours from 9:00 AM to 6:00 PM, Monday through Friday. Interview Process While the exact process may vary slightly depending on the role, our typical interview stages are: Introductory Call - A short Teams conversation with a Talent Partner to discuss your background and the opportunity. Hiring Manager Interview - A 30-45 minute Teams meeting to explore your experience and fit for the team. Technical Task or Presentation - A role-relevant exercise to demonstrate your skills and approach. Final On-site Interview - An in-person meeting with our senior leadership team and co-founders at our office. We strive to make the process clear, efficient, and respectful of your time.
A fast-growing technology company in Greater London is seeking a Senior AI Engineer to lead the design and delivery of robust AI solutions. You will be responsible for architecting complex workflows, ensuring reliability and scalability in production environments, and mentoring other engineers. The ideal candidate has over 5 years of experience in AI and ML systems. We offer a competitive salary, hybrid working options, and a diverse team environment committed to personal growth.
10/05/2026
Full time
A fast-growing technology company in Greater London is seeking a Senior AI Engineer to lead the design and delivery of robust AI solutions. You will be responsible for architecting complex workflows, ensuring reliability and scalability in production environments, and mentoring other engineers. The ideal candidate has over 5 years of experience in AI and ML systems. We offer a competitive salary, hybrid working options, and a diverse team environment committed to personal growth.
A growing tech company in Greater London is seeking a Head of Infrastructure to oversee the reliability and security of its SaaS platform. The successful candidate will have over 8 years of experience in infrastructure and a deep understanding of AWS. Responsibilities include managing platform strategy, ensuring operational efficiency, and leading a DevOps team. This full-time role offers competitive pay, hybrid working options, and numerous employee benefits including comprehensive health coverage and a strong focus on personal development.
10/05/2026
Full time
A growing tech company in Greater London is seeking a Head of Infrastructure to oversee the reliability and security of its SaaS platform. The successful candidate will have over 8 years of experience in infrastructure and a deep understanding of AWS. Responsibilities include managing platform strategy, ensuring operational efficiency, and leading a DevOps team. This full-time role offers competitive pay, hybrid working options, and numerous employee benefits including comprehensive health coverage and a strong focus on personal development.