Cornerstone VC

About Passionfruit Passionfruit is on a mission to reshape how marketing teams work - empowering them to move faster, work smarter, and grow revenue with cutting edge AI tools. We're a hybrid, global team building products that help marketers unlock insights, reduce busy work, and enable strategic, revenue driving outcomes. About PIP PIP is our AI native platform designed for modern marketing operations. It centralises context, insights, and workflows into an intelligent workspace that helps teams analyse performance, generate content briefs, automate reporting, and extract meaningful answers from data. With features like secure document ingestion, AI assisted workflows, and personalized marketing insights, PIP is transforming how marketing teams think about efficiency and impact. Role Overview We're looking for a motivated Software Developer to join our engineering team and help shape the next generation of PIP. You'll build robust, scalable features with a focus on AI driven experiences, backend services, and integrations that bring real value to our users. You will collaborate closely with product, design, and data teams to deliver high quality, user centric software. Key Responsibilities Design, develop, test, and deploy high quality code that powers PIP's core features and infrastructure. Build scalable backend systems and APIs that support AI workflows, data ingestion, and real time insights. Work with AI/ML services and integrations - ensuring seamless connections between models, databases, and frontend experiences. Partner with cross functional teams to translate product goals into technical solutions. Write clear documentation, perform code reviews, and contribute to engineering best practices. Troubleshoot, optimise, and maintain existing systems to ensure performance and reliability at scale. Help define and improve development processes and tooling as the team grows. What We're Looking For Must have skills & experience: 3+ years of professional software development experience. Ideally proficiency in backend technologies such as Elixir, Phoenix, Erlang or similar. Familiarity with AI/ML integrations or data driven features. Excellent problem solving and collaboration skills. Nice to have: Previous work on marketplace or AI platforms Why Passionfruit? Be part of an ambitious team building world class AI products for marketers. Work in a flexible, hybrid environment with global teammates. Competitive compensation and benefits aligned with market standards. Opportunities for personal development and career growth. Contribute directly to product decisions and help shape the future of PIP.

A forward-thinking tech company is seeking a Software Developer to enhance their AI-native platform, PIP. In this role, you will develop robust features, build scalable backend systems, and collaborate with cross-functional teams to drive product success. Ideal candidates will have over 3 years of software development experience and proficiency in backend technologies like Elixir or similar. Join this ambitious team to shape the future of AI products in a flexible, hybrid work environment.

A leading legal technology firm in the UK is seeking a Senior Machine Learning Engineer to advance innovative legal solutions for top law firms. You will utilize your expertise in machine learning, NLP, and LLMs while collaborating with various teams to enhance products. The role encourages proactive problem solving and continuous improvement. Competitive salary, growth opportunities, and a hybrid work environment are offered to foster your development and success.

Engineering Norwich Fully Remote Staff Data Analyst About the role We are on the look out for a Staff Data Analyst to take a lead on our data analytics effort to help us guide and scale our impact. We are just starting to build out our data capabilities, so this is an amazing opportunity to have an impact on the very direction of the company. The role is 90% hands on, and reports into our Head of Data. Key Responsibilities Help develop and implement a comprehensive analytics strategy that aligns with Evaro's objectives. Design, develop, automate, and maintain ongoing metrics, reports, analyses, experiments and dashboards on the critical drivers of our business. Maintain data integrity and quality through the use of tools such as DBT. Partner with teams across the org, including senior leadership, to provide insights and identify opportunities for growth and optimisation in company direction, patient experience, marketing and engagement flows. Champion the use of data in decision making, ensuring data accessibility and literacy across all departments. Essential Skills, Experience & Qualifications A Bachelor's or Master's degree in Data Science, Computer Science, Statistics, Economics, or a related field. 5+ years of experience in data analytics in at least one (more is a plus) of the following business areas: Product, Marketing and/or Sales, Clinical. Proficiency in analytics and data tools and technologies like SQL, Python, DBT, and knowledge of statistical analysis and experimentation (e.g. A/B testing). Experience with data visualisation tools (e.g. Looker, Metabase or Lightdash). Experience working with a version control environment (e.g. git). Excellent communication skills, with the ability to translate complex data insights into actionable strategies. Fluency in English, with outstanding written and verbal communication skills. Desirable Skills, Experience & Qualifications Some experience with Google Cloud tech stack (Dataflow, Cloud Storage, BigQuery, Dataproc, Data Catalog, Cloud Functions, Cloud Run). Experience in data orchestration tools (e.g. Airflow, Prefect, Astronomer). Experience with data processing frameworks like Apache Kafka, Apache Iceberg and Debezium. Experience integrating third party tools through data movement platforms (e.g. Fivetran, Airbyte). Some experience with predictive analytics. Some experience with healthcare and patient care. Perks Salary based on your expertise. Pension scheme. Flexible working options. Opportunities for professional development and growth. A modern office based just outside of Norwich. Regular team building and events. About Evaro Evaro builds technology that makes healthcare more accessible. Our platform enables brands to integrate digital health services with minimal friction, supporting 13.5 million patients across NHS and private healthcare services in the UK. We're tackling real healthcare challenges - 25% of A&E consultations and 40% of GP appointments focus on minor health conditions that our technology can help manage more efficiently. Our vision is to ease the pressure on frontline services while improving patient outcomes at scale. Application Process Initial conversation with our Talent Partner (Sofi). Technical assessment (paid). Interview with hiring team. Taster week Mon Fri (paid). Offer.

About the role We are looking for a Senior Machine Learning Engineer to join our AI team and help us build cutting edge legal solutions for some of the world's largest law firms. In this role, you will leverage your deep expertise in machine learning, natural language processing, and large language model (LLM) agents to push the boundaries of legal technology. You'll be collaborating closely with data scientists, software engineers, and product managers to integrate advanced NLP techniques into our products. What You'll Do Innovative NLP Research: Research, evaluate, and implement state of the art NLP methodologies and large language model approaches to drive product innovation and develop new functionalities. LLM Agents & Multi Agent Systems: Design, develop, and deploy LLM agents and multi agent systems to automate complex legal workflows and enhance user experiences. Advanced Technology Integration: Collaborate on projects that leverage emerging technologies - such as Retrieval Augmented Generation (RAG) and Knowledge Graphs - to enhance our core product and explore new use cases. Cross Functional Collaboration: Work closely with cross functional teams to integrate advanced ML models and NLP solutions into our platform, ensuring they align with business objectives and provide tangible value. Strategic Innovation: Stay current with the latest trends and breakthroughs in NLP, machine learning, and multi agent systems, and contribute ideas that shape the strategic direction of our AI initiatives. About You Machine Learning & NLP Expertise: Strong understanding of machine learning and natural language processing with relevant commercial experience in building and deploying NLP solutions. Cloud & Containerization Skills: Experience with the AWS cloud platform and containerization technologies (e.g., Docker, Kubernetes). Collaboration & Communication: Strong collaboration and communication skills to work effectively with cross functional teams and articulate technical concepts to non technical stakeholders. Proactivity & Continuous Improvement: Proactive in identifying problems, performance bottlenecks, and areas for improvement while taking pride in building and operating scalable, reliable, and secure systems. LLM Agents & Multi Agent Systems: Proven experience in designing, deploying, and scaling large language model (LLM) agents and multi agent systems to enhance NLP capabilities and automate complex workflows. Nice to have: Experience with knowledge graphs like Neo4j Experience in optimising graph database performance and ensuring the scalability of graph based solutions. Experience with LangGraph for Agentic Systems Most importantly, if you're someone with a can do attitude who is willing to get their hands dirty to help us exceed our wildest expectations, then please do not hesitate to apply. What we offer Competitive Salary We offer a highly competitive salary that reflects your skills, experience, and contributions. Impact & Growth Join a fast growing startup where your ideas matter; experiment, innovate, and see your work come to life. High Performance Culture Work in a truly meritocratic environment alongside ambitious, driven professionals who push each other to excel. Prestigious Partnerships Collaborate with some of the world's top law firms, financial institutions, and multinational corporations. Prime London Location & Hybrid Flexibility Enjoy a vibrant office in the heart of Aldgate with the option to work in a hybrid environment. We tend to come into the office 2 3 times a week, although you can come in more! Ongoing Learning & Development Access top tier training, mentorship, and continuous support to advance your career. Time Off Enjoy 25 days of holiday per year, plus UK bank holidays, to recharge and unwind. Pension Plan Secure your future with our competitive pension scheme. Private Healthcare Access to Vitality healthcare, including dental and optical. Flexible Working Work in a way that suits your lifestyle, with the freedom to balance professional and personal priorities. Enhanced Parental Leave We support working parents with generous parental leave policies that go far beyond statutory requirements. Cycle to Work Scheme Save on a new bike and accessories while promoting a healthier, more sustainable commute. Workplace Nursery Scheme Saving working parents lots of money through our salary sacrifice scheme! Top Quality Equipment Get the tools you need to perform at your best, from cutting edge tech to ergonomic office setups. About Definely Named in the top 25 of the prestigious Deloitte UK Technology Fast50 in 2023, as well as the EMEA Technology Fast 500, Definely is a fast growing, venture backed company transforming the $900bn global legal services market. Our customers include some of the world's top law firms, financial institutions, and multinational corporations such as Allen & Overy, Dentons, and Deloitte. We are backed by prominent investors and VCs, including Octopus Ventures, Raine Ventures, Microsoft, Google for Startups, and Nick Jenkins (founder of Moonpig and former Dragon). By submitting your application, you agree that DEFEYENE LEGAL SOLUTIONS LIMITED ("Definely") may collect, process, and store your personal data as part of our recruitment process. We will use the information you provide to assess your qualifications for the role you are applying for and to communicate with you regarding your application. Your personal data will be stored for up to 12 months, after which it will be securely deleted unless we have another lawful basis to retain it. You have the right to access, correct, or request the deletion of your data at any time. For more details on how we handle your personal data and your rights, please send us an email to and we will send you our privacy policy. If you have any concerns about how your data is being processed, please do not hesitate to contact us.

A rapidly growing AI startup is seeking a Backend Engineer to join their team in London, UK. This hybrid role requires at least 4 years of software engineering experience, where you will work on building robust, scalable systems for an AI platform. Responsibilities include designing features for investment expertise, developing scalable data pipelines, and maintaining high code quality. Enjoy perks such as private healthcare insurance and working remotely one month a year while making a significant impact in a fast-paced environment.

PPC Specialist Our mission? To increase accessibility to prescription medications and improve health outcomes by providing a seamless, technology-driven solution that empowers brands to integrate digital health services effortlessly. Evaro strives to build the online banking for UK healthcare. Our journey Evaro was founded in 2018 by Dr Thuria Wenbar and Dr Oskar Wenbar after realising that 25% of A&E consultations and 40% of GP appointments focused on minor health conditions. Starting as an online service for e-Surgery and e-Pharmacy, Evaro has since expanded its offerings to support 13.5 million patients across NHS and private healthcare services in the UK. Our values Put Patients First Teamwork Makes It Work Level Up Embrace Innovation Join us as a Performance Marketer to accelerate customer acquisition, optimise paid media performance, and support our growth across digital channels. You will play a key role in driving ROI and supporting data-driven marketing initiatives across the business. You will report to the Marketing Manager and collaborate closely with the wider Marketing team. As a Performance Marketer at Evaro, you will: Plan, execute and optimise paid media campaigns across channels (especially Google) to drive customer acquisition and revenue growth Manage campaign optimisation to maximise ROI and hit key performance metrics (CPA, ROAS) Conduct A/B testing on ad copies, landing pages and audience segments to continuously improve campaign performance Monitor campaign metrics and competition performance to provide actionable insights to the Marketing Manager Collaborate with Data Analyst, designers and developer in the marketing team to improve funnel conversion rates About you Essential Skills, Experience & Qualifications: 3yr+ relevant experience in performance marketing campaigns such as Google Ads Strong analytical skills with proficiency in Google Analytics, campaign management platforms and Excel/Google Sheets Hands on experience managing substantial media budgets (£100k+ monthly) and demonstrable track record of achieving performance targets Deep understanding of digital marketing metrics, attribution models and conversion funnel optimisation. Ability to work collaboratively with cross functional teams including creative, clinical and data. Desirable Skills, Experience & Qualifications: Experience working with Meta Ads Manager, Bing, LinkedIn Campaign Manager, etc Familiarity with Google Tag Manager Experience scaling performance marketing programmes in high growth environments What you can expect Work in a fast growing startup redefining healthcare through technology and data Collaborate with innovative clients and a passionate, forward thinking team Take on high impact projects that directly shape the future of digital healthcare Embrace innovation in a company centred on technology driven solutions Perks Competitive salary Pension scheme Opportunities for professional development and growth A modern office based just outside of Norwich Regular team building and events Our hiring process Online initial conversation with our Talent Partner (Kate) On site Interview with the Hiring Manager On site business case to connect with the team and experience the company culture Offer Location: Norwich

A healthcare technology firm is seeking a Staff Data Analyst to lead their data analytics efforts. This is a unique opportunity to shape the company's data capabilities, working closely with leadership to provide insights and implement analytics strategies. The ideal candidate should have at least 5 years of experience in data analytics, proficiency in tools like SQL and Python, and exceptional communication skills. The role offers fully remote work options and an environment focused on professional growth.

At a Glance Capsa is an AI platform that accelerates due diligence and deepens insights for Private Equity funds. We are hiring Staff / Senior Backend Engineers who are comfortable building robust, scalable systems that power our AI platform. Details Role: Backend Engineer Location: London, UK (Hybrid, In-Person 4 days a week) Experience: Required: 4+ years Visa: Unfortunately, we don't sponsor visas yet. You must have the right to work in the UK. About Capsa AI At Capsa, we're on a mission to transform how private capital firms source, analyse, and win deals. Our AI operating system accelerates due diligence, unlocks deeper insights, and helps funds focus on what matters - creating value. We're lean, ambitious, and obsessed with building a category-defining company. In just 12 months, we've grown ARR by 15x, achieved product-market fit with leading multi-billion-dollar PE firms, and expanded across the US, UK, and Europe. Backed by top VCs and senior PE execs from Warburg Pincus, KKR, and Goldman Sachs, we're just getting started. The Role A senior backend engineer at Capsa is expected to own projects and features from conception to production, building the infrastructure and services that underpin our AI platform. Key responsibilities include: Improving our agent's capabilities - design and implement new features that endow our agent with human-level investment expertise. Building scalable data pipelines - design and implement systems that ingest, process, and index large volumes of documents and financial data. Developing robust APIs and services - create performant, reliable backend services that power our platform. Improving connectivity - integrate and incorporate additional data sources into our agent loop, increasing the depth and breadth of the analyses that can be performed. Maintaining high code quality - uphold rigorous standards across our codebase, ensuring tech debt doesn't impede our velocity. Recent projects include Agentic assistant with a finance-focused toolkit and advanced document authoring features Scalable document ingestion and indexing pipeline In-house, streaming-first agent framework AI-assisted document editor As an early stage startup, working at Capsa will be hard work, it will be messy and at times it will be stressful. However, you will: Work directly with our founding team. Participate in the upside of an ultra-growth venture. Shape the company's vision and will have a direct impact on its success. Have the opportunity for fast career growth. Enjoy yourself! Apply if You'll likely be a great fit if most of the following describe you: You have 4+ years of experience as a software engineer in a venture backed startup or top tech firm. You have taken entire products or features from ideation to production and you've measured their impact. You have experience with the following technologies (or similar): Python, FastAPI, Postgres, ElasticSearch, RabbitMQ, Redis, message queues, distributed systems You enjoy diving deep into the domain, understanding the problem, and focusing on delivering value to the customer. You thrive in a fast paced environment. Additional Perks Alongside the core role and growth opportunity, we also offer: Private healthcare insurance. One month per year remote working. Budget for setting up your Home-Office. Generous referral scheme (£10k per hired referral).

At a Glance Capsa is an AI platform that accelerates due diligence and deepens insights for Private Equity funds. We are hiring Staff / Senior AI Engineers who are comfortable building and improving our AI agents and pushing the boundaries of what's possible with LLMs. Details Role: AI Engineer Location: London, UK (Hybrid, In-Person 4 days a week) Experience: 4+ years Visa: Unfortunately, we don't sponsor visas yet. You must have the right to work in the UK. About Capsa AI At Capsa, we're on a mission to transform how private capital firms source, analyse, and win deals. Our AI operating system accelerates due diligence, unlocks deeper insights, and helps funds focus on what matters - creating value. We're lean, ambitious, and obsessed with building a category-defining company. In just 12 months, we've grown ARR by 15x, achieved product-market fit with leading multi-billion-dollar PE firms, and expanded across the US, UK, and Europe. Backed by top VCs and senior PE execs from Warburg Pincus, KKR, and Goldman Sachs, we're just getting started. The Role A senior AI engineer at Capsa is expected to own projects and features from conception to production, focusing on our core AI capabilities and agent infrastructure. Key responsibilities include: Improving our agent's capabilities - design and implement new features that endow our agent with human-level investment expertise. Designing and optimising prompts, agent architectures, and reasoning chains to maximise output quality and reliability. Evaluating and integrating new models, techniques, and research to keep our AI capabilities at the cutting edge. Improving connectivity - integrate and incorporate additional data sources into our agent loop, increasing the depth and breadth of the analyses that can be performed. Maintaining high code quality - uphold rigorous standards across our codebase, ensuring tech debt doesn't impede our velocity. Recent projects include: Agentic assistant with a finance-focused toolkit and advanced document authoring features Scalable document ingestion and indexing pipeline In-house, streaming-first agent framework AI-assisted document editor As an early stage startup, working at Capsa will be hard work, it will be messy and at times it will be stressful. However, you will: Work directly with our founding team. Participate in the upside of an ultra-growth venture. Shape the company's vision and will have a direct impact on its success. Have the opportunity for fast career growth. Enjoy yourself! Apply if You'll likely be a great fit if most of the following describe you: You have 4+ years of experience as a software engineer with significant exposure to AI/ML systems in a venture backed startup or top tech firm. You have taken entire products or features from ideation to production and you've measured their impact. You have experience with the following technologies (or similar): Python, LLMs (OpenAI, Anthropic, open-source models), agent frameworks, RAG pipelines, vector databases, FastAPI, Postgres, ElasticSearch You enjoy diving deep into the domain, understanding the problem, and focusing on delivering value to the customer. You thrive in a fast paced environment. Additional Perks Alongside the core role and growth opportunity, we also offer: Private healthcare insurance. One month per year remote working. Budget for setting up your Home-Office.

An innovative tech company in Greater London is hiring a full stack engineer to contribute end-to-end to their application. The role involves designing the application architecture and shipping critical features directly aligned with user needs. Ideal candidates will have a strong background in Python and React, thrive in dynamic settings, and desire to shape their own growth while being part of an early-stage venture. This position offers exciting benefits and opportunities for quick advancement.

We are using AI to accelerate due diligence and deepen insights for Private Equity funds. We are hiring a full stack engineer who is comfortable contributing to all layers of the application and developing features end to end. About Capsa AI Empowering Private Equity with Advanced AI - Capsa AI is an operating system that aggregates, structures, and generates insights from company and market data. Our AI solutions reduce time spent on mechanical tasks and increase returns by analysing vast amounts of data to provide clear, actionable insights. Our vision is to become the leading AI platform for private capital funds, transforming how private investments are analysed and managed. Our Team and Progress Our founding team has deep domain expertise in Private Equity and AI. Our CEO, Danyal, has over 6 years of experience in Private Equity and Investment Banking at blue-chip financial institutions such as AEA Investors, Citigroup, and Deutsche Bank. Our CTO, Callum, has over 6 years of experience in Machine Learning and AI, having worked at leading defense companies like QinetiQ and retail tech startups such as Standard AI. The entire team are early stage startup veterans, with a passion for building great products. Just one year after our December 2023 founding, we are already generating revenue, serving top-tier PE funds managing over £30 billion across the US, UK, and Germany. Furthermore, we've raised over £1.8 million in funding from prominent fintech venture capitalists and private equity angels, underscoring the confidence of industry leaders in our vision and potential. Our Philosophy Small team: Small talented teams outperform large and slow-moving companies. We avoid bureaucracy, keep meetings to a minimum and focus on creating value. Simple where possible: We are passionate about new technology (in particular Machine Learning and AI), but we are more passionate about solving problems for our customers. We strive to find the best solution, be it cutting-edge or old-school. Customer obsessed: We take every opportunity to talk to our customers. We obsess over their problems and work every day to make them happy. About the Role We are looking for a full stack engineer who wants to help shape the future of private equity and our company. As an early stage engineer you will: Work directly with our founding team. Help design our application architecture. Ship features that our users care about, wherever they are in the stack. Participate in strategy and product ideation sessions, influencing our product roadmap. Working at Capsa AI will be hard work, it will be messy and at times it will be stressful. However, you will: Experience the process of taking the company from 0.5 to 1. Shape the company's vision and will have a direct impact on its success. Have the opportunity for fast career growth. Have the opportunity to participate in the upside of an ultra-growth venture. Have fun Apply if You have experience with our stack: Python, FastAPI, Postgres, SQLAlchemy, Alembic, Typescript, React, LlamaIndex / LangChain, PyTorch, HuggingFace, OpenAI, Docker, Azure, You have taken entire products or features from ideation to deployment and you've measured their impact. You enjoy diving deep into the domain, understanding the problem, and focusing on delivering value to the customer. You thrive in a fast paced environment. You like to take ownership and work independently. You are excited about joining an early-stage venture. Don't apply if You want to work on a single layer of the application. You prefer to work on well-defined problems. You need clear, pre-defined processes. You prefer a low-pressure environment. Company Benefits Private healthcare insurance. One month per year remote working. Budget for setting up your Home-Office. Interview Process 25 minute call with Callum (video call) Coding Session (video call) Systems Design Session (video call) Meet the team (in-person)

A cutting-edge AI firm is looking for a Senior AI Engineer to lead projects and features that enhance their AI capabilities. The role requires extensive experience with AI/ML systems and ownership of product features from ideation to production. Candidates should be proficient in Python and comfortable working in a hybrid environment, enjoying rapid growth opportunities within a dynamic startup atmosphere. Joining this team offers a chance to shape the company's vision and directly impact its success.

About the role We are looking for a Senior Machine Learning Engineer to join our AI team and help us build cutting edge legal solutions for some of the world's largest law firms. In this role, you will leverage your deep expertise in machine learning, natural language processing, and large language model (LLM) agents to push the boundaries of legal technology. You'll be collaborating closely with data scientists, software engineers, and product managers to integrate advanced NLP techniques into our products. What You'll Do Innovative NLP Research: Research, evaluate, and implement state of the art NLP methodologies and large language model approaches to drive product innovation and develop new functionalities. LLM Agents & Multi Agent Systems: Design, develop, and deploy LLM agents and multi agent systems to automate complex legal workflows and enhance user experiences. Advanced Technology Integration: Collaborate on projects that leverage emerging technologies - such as Retrieval Augmented Generation (RAG) and Knowledge Graphs - to enhance our core product and explore new use cases. Cross Functional Collaboration: Work closely with cross functional teams to integrate advanced ML models and NLP solutions into our platform, ensuring they align with business objectives and provide tangible value. Strategic Innovation: Stay current with the latest trends and breakthroughs in NLP, machine learning, and multi agent systems, and contribute ideas that shape the strategic direction of our AI initiatives. About You Machine Learning & NLP Expertise: Strong understanding of machine learning and natural language processing with relevant commercial experience in building and deploying NLP solutions. Cloud & Containerization Skills: Experience with the AWS cloud platform and containerization technologies (e.g., Docker, Kubernetes). Collaboration & Communication: Strong collaboration and communication skills to work effectively with cross functional teams and articulate technical concepts to non technical stakeholders. Proactivity & Continuous Improvement: Proactive in identifying problems, performance bottlenecks, and areas for improvement while taking pride in building and operating scalable, reliable, and secure systems. LLM Agents & Multi Agent Systems: Proven experience in designing, deploying, and scaling large language model (LLM) agents and multi agent systems to enhance NLP capabilities and automate complex workflows. Nice to have: Experience with knowledge graphs like Neo4j Experience in optimising graph database performance and ensuring the scalability of graph based solutions. Experience with LangGraph for Agentic Systems Most importantly, if you're someone with a can do attitude who is willing to get their hands dirty to help us exceed our wildest expectations, then please do not hesitate to apply. What we offer Competitive Salary We offer a highly competitive salary that reflects your skills, experience, and contributions. Impact & Growth Join a fast growing startup where your ideas matter; experiment, innovate, and see your work come to life. High Performance Culture Work in a truly meritocratic environment alongside ambitious, driven professionals who push each other to excel. Prestigious Partnerships Collaborate with some of the world's top law firms, financial institutions, and multinational corporations. Prime London Location & Hybrid Flexibility Enjoy a vibrant office in the heart of Aldgate with the option to work in a hybrid environment. We tend to come into the office 2 3 times a week, although you can come in more! Ongoing Learning & Development Access top tier training, mentorship, and continuous support to advance your career. Time Off Enjoy 25 days of holiday per year, plus UK bank holidays, to recharge and unwind. Pension Plan Secure your future with our competitive pension scheme. Private Healthcare Access to Vitality healthcare, including dental and optical. Flexible Working Work in a way that suits your lifestyle, with the freedom to balance professional and personal priorities. Enhanced Parental Leave We support working parents with generous parental leave policies that go far beyond statutory requirements. Cycle to Work Scheme Save on a new bike and accessories while promoting a healthier, more sustainable commute. Workplace Nursery Scheme Saving working parents lots of money through our salary sacrifice scheme! Top Quality Equipment Get the tools you need to perform at your best, from cutting edge tech to ergonomic office setups. About Definely Named in the top 25 of the prestigious Deloitte UK Technology Fast50 in 2023, as well as the EMEA Technology Fast 500, Definely is a fast growing, venture backed company transforming the $900bn global legal services market. Our customers include some of the world's top law firms, financial institutions, and multinational corporations such as Allen & Overy, Dentons, and Deloitte. We are backed by prominent investors and VCs, including Octopus Ventures, Raine Ventures, Microsoft, Google for Startups, and Nick Jenkins (founder of Moonpig and former Dragon). By submitting your application, you agree that DEFEYENE LEGAL SOLUTIONS LIMITED ("Definely") may collect, process, and store your personal data as part of our recruitment process. We will use the information you provide to assess your qualifications for the role you are applying for and to communicate with you regarding your application. Your personal data will be stored for up to 12 months, after which it will be securely deleted unless we have another lawful basis to retain it. You have the right to access, correct, or request the deletion of your data at any time. For more details on how we handle your personal data and your rights, please send us an email to and we will send you our privacy policy. If you have any concerns about how your data is being processed, please do not hesitate to contact us.

Location London Employment Type Full time Location Type Hybrid Department Technology About the role We're looking for a Senior Engineer with strong technical depth and a passion for building exceptional user experiences. You'll play a key role in shaping our front-end architecture, collaborating closely with product and design teams, and delivering scalable, performant solutions used by legal professionals worldwide. As a senior member of the team, you'll act as a technical expert and a trusted partner helping to guide best practices, influence decisions, and mentor others through collaboration and example. What you'll do Design and build sophisticated React applications integrating with Microsoft Word, M365, and other Office products using Office.js. Write clean, scalable, and maintainable code while driving performance and reliability. Collaborate with product, design, and engineering teams to deliver user-focused, accessible features. Contribute to architectural discussions and help shape the evolution of our tech stack. Mentor and support team members through knowledge sharing, code reviews, and best practice guidance. Troubleshoot complex technical challenges and drive continuous improvement through automation and AI-assisted workflows. Maintain high-quality standards with robust testing, documentation, and security practices. What you'll bring 4+ years of hands-on experience building production React applications. Strong proficiency in React, TypeScript, JavaScript, HTML, CSS, and modern web technologies. Experience integrating with Microsoft Office, especially Office.js and Word add-ins. Familiarity with agentic coding assistants such as Claude Code or similar AI tools. Excellent communication and collaboration skills in English. Proven ability to work independently while contributing effectively to team goals. Experience working successfully in hybrid or remote development environments. Solid understanding of React performance optimisation (e.g. memoisation, code splitting, avoiding unnecessary re-renders). Experience with Git, version control best practices, and CI/CD pipelines. We'll be lucky if you have Knowledge of Microsoft Office Add-in guidelines and Office Store submission processes. Experience optimising in-browser text editors for speed and responsiveness. Prior experience in product-focused or startup environments. Exposure to AI-powered developer tools and automation workflows. What we offer Competitive salary & annual bonus Equity in Definely Quarterly team socials & annual company offsite Hybrid working (Tues & Thurs in-office) + 1 month "work from anywhere" ️ 25 days holiday + bank holidays £750 annual learning & development budget Private healthcare (incl. dental & optical) Enhanced parental leave Additional perks: Cycle to Work, Workplace Nursery salary sacrifice scheme, and top-quality equipment Data Privacy Notice By submitting your application, you agree that Definely may collect, process, and store your personal data as part of our recruitment process. We will use the information you provide to assess your qualifications for the role you are applying for and to communicate with you regarding your application. Your personal data will be stored for up to 12 months, after which it will be securely deleted unless we have another lawful basis to retain it. You have the right to access, correct, or request the deletion of your data at any time. For more details on how we handle your personal data and your rights, please email and we will send you our privacy policy. If you have any concerns about how your data is being processed, please do not hesitate to contact us.

A leading legal technology firm is seeking a Senior Machine Learning Engineer to join their AI team. The role focuses on leveraging expertise in machine learning and natural language processing to build cutting-edge legal solutions for major law firms. The engineer will work on innovative NLP research, deploy LLM agents, and collaborate with various teams to enhance product offerings. This fast-growing startup offers a competitive salary and a vibrant hybrid work environment in London.