Xelix

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 rapidly growing technology company in Greater London is seeking a Senior Python Developer to join their back-end development team. This full-time role involves implementing scalable solutions, developing REST APIs, and ensuring code quality. The ideal candidate has over 4 years of Python experience, knowledge of Django, and strong communication skills. The position offers a competitive salary between £70,000 and £95,000, along with benefits like hybrid working and personal development budget.

A dynamic tech company in Greater London is seeking an experienced Senior Python Developer to join their back-end development team. This role involves implementing robust solutions, developing REST APIs, and ensuring code quality. The ideal candidate has over 4 years of Python experience and an education in Computer Science. The company offers a competitive salary, hybrid working, and a culture focused on personal and professional growth.

A fast-paced technology company in Greater London is seeking a React Developer to join their development team. The role involves implementing user interface components using React, ensuring code quality through testing, and collaborating with design teams. Ideal candidates will have expert knowledge in JavaScript and React, along with a passion for innovation. This position offers a competitive salary and a hybrid working model, fostering a culture of learning and professional development.

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 of 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 seeking Senior Python Developers to join our back-end development team. This is a varied and challenging programming role. Tasks could include writing code to manage incoming data, working with AI Engineers to analyse huge data sets, or writing Restful APIs in Django to support the React front end. Our ideal candidate takes 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, a budget for books and a monthly session with your manager to identify and track your learning goals. As Xelix continues to grow opportunities for you to develop your career becoming a Team Lead, Project Lead or Staff Engineer could be available to the right candidate. What you'll be doing Implementing robust and scalable solutions in Python. Developing, using and designing REST APIs to efficiently deliver application components. Implementing performance improvement strategies. Ensuring the quality of code by writing comprehensive tests and participating in code reviews. What you'll bring 4+ years of Python coding professional experience Ability to learn and apply new technology quickly Ability to effectively communicate complex technical concepts to team members and stakeholders. Familiarity with coding in Django and the Django Rest Framework Degree in Computer Science (or similar), at 2:1 or above Amazon Web Services SQL / PostgreSQL Build pipeline and CI with GitHub, Jenkins, Docker, Terraform What we offer in return Competitive salary of £70,000 - £95,000 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 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. 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.

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.

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 of 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 To prepare for a significant period of growth, Xelix is seeking a Head of Infrastructure to own the reliability, scalability, security, and cost-effectiveness of the Xelix SaaS platform. This role provides senior technical and operational leadership to ensure our technology and processes are capable of meeting our future business needs. This is a hands on leadership role combining architecture, operational ownership, and team development. The role requires initiating and delivering change. Our successful candidate will be able to identify the areas where we could improve, make a proposal and see the change through. Taking responsibility, showing pride in your work and excellent communication skills are essential. The current technology stack makes extensive use of Amazon Web Services using Terraform to configure services. We also use Jenkins, Sentry, GitHub, Shortcut, Python and React and an evolving suite of AI tools. The Head of Infrastructure reports to the VP of Engineering. What you'll be doing Platform Strategy & Architecture Own the long-term platform and infrastructure strategy Design and evolve cloud architecture to support scale, resilience, and performance Set standards for infrastructure, CI/CD, environments, and observability Make architectural decisions and trade offs Developer Experience (DevEx) Provide infrastructure for the development team to code, test and deploy efficiently Advise during design sessions to help engineers pick the right solutions for projects Reliability & Operations Own production reliability, uptime, and incident response Define and enforce SLAs and SREs Lead incident response and post incident reviews Ensure monitoring, alerting, and on call practices are effective and sustainable Security & Risk Partner closely with the Information Security Officer on cloud security and compliance Own platform level security decisions and risk mitigation Ensure secure by design infrastructure and access controls Support compliance initiatives (SOC 2, ISO:27001) Leadership & Team Development Lead and mentor the DevOps team including DevOps engineers, IT Support and an Information Security Officer Provide technical coaching and decision support to the DevOps team Cost & Efficiency Manage relationship with AWS and other vendors Own cloud cost visibility and optimisation Balance performance, reliability, and cost trade offs Introduce tooling and practices that improve developer efficiency What you'll bring 8+ years in infrastructure, platform, or SRE roles AWS Certified Solutions Architect - Professional Prior experience scaling production systems in a growing company Ability to operate production systems under pressure Deep hands on experience with the AWS cloud platform Strong background in reliability, observability, and incident management Experience leading or mentoring engineers What we offer in return Competitive salary 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 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. 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.