North London, London, United Kingdom Hybrid / WFH Options
Family Action
day one of employment - Enhanced paid sick leave and paid family leave provisions - Eye care and winter flu jabs vouchers - Cycle to work scheme - Investing in your professional development with ongoing quality training and career development opportunities This is a brilliant opportunity for a talented software engineer whos confident working with Node.js, TypeScript, and PostgreSQL to More ❯
to impact the health of 2.5 billion people over the next decade. Our R&D division is at the forefront of this mission, dedicated to the discovery and development of groundbreaking vaccines and medicines. We are transforming the landscape of medical research by integrating cutting-edge science and technology and harnessing the power of genetics and new data. … respond to emerging or changing diseases with personalized drugs, driving better outcomes at reduced cost with fewer side effects. It is an ambitious vision that will require the development of products and solutions at the cutting edge of Machine Learning and AI, as well as extensive safety and robustness evaluations. We’re looking for a highly skilled full … interest in ethical and safety aspects of using AI in drug discovery and the clinic. The Responsible AI team is built on the principles of ownership, accountability, continuous development, and collaboration. This fixed-term position is a unique opportunity to contribute to the development and evaluation of generative AI for drug discovery in a fast-paced More ❯
. This FullStack Software Engineer position is fully remote, with occasional visits to Basingstoke as needed. Qualifications & Skills required: 5+ years of Python development Strong understanding of database systems (e.g. PostgreSQL) 5+ years of front-end development and deployment RESTful API design and development Demonstrable clean, maintainable code practices … process or if there is a better way for us to communicate, please do let us know. Developer, Software Engineer, Programmer, FullStack, Full-Stack, Fullstack, Python, Data, Database, SQL, PostgreSQL, UX, UI, User Experience, User Interface, User Centred, User Focus, User Centric, Vue.JS Circle Recruitment is acting as an Employment Agency More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Circle Recruitment
. This FullStack Software Engineer position is fully remote, with occasional visits to Basingstoke as needed. Qualifications & Skills required: 5+ years of Python development Strong understanding of database systems (e.g. PostgreSQL) 5+ years of front-end development and deployment RESTful API design and development Demonstrable clean, maintainable code practices … process or if there is a better way for us to communicate, please do let us know. Developer, Software Engineer, Programmer, FullStack, Full-Stack, Fullstack, Python, Data, Database, SQL, PostgreSQL, UX, UI, User Experience, User Interface, User Centred, User Focus, User Centric, Vue.JS Circle Recruitment is acting as an Employment Agency More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Fynity
across a range of client projects, helping to maintain and enhance existing sites as well as build new ones from the ground up.This role will focus on backend development: solving complex technical challenges, integrating external systems, developing custom plugins, and ensuring our Craft CMS builds are robust, scalable and high-performing.You’ll have the opportunity to contribute to … the technical direction of projects, helping shape solutions and supporting the ongoing evolution of our development approach.It’s important that you can think creatively about problem-solving, challenge approaches where necessary, and take pride in delivering well-structured, maintainable code that supports long-term client relationships. Required skills: Strong PHP development skills. Experience working with Craft … Familiarity with integrating third-party APIs and external systems. Experience of version control using Git. Understanding of front-end technologies (HTML, CSS, JavaScript) and ability to work full-stack when required. Ability to write clear, maintainable and well-documented code. Desired skills: Experience managing hosting environments and deployment workflows. Knowledge of performance optimisation and caching strategies. More ❯
the brightest minds in AI (many with Ph.D.s from internationally leading Unis), so they need someone who can technically joust at this leve Proven track record in software development, system integrations, and creating developer resources such as APIs, SDKs, and technical documentation. Strong experience across Integrations, FullStack Web Development, and Cloud … for new third-party connectors and integrations. Enhance system observability by improving diagnostics, logging, and tracing to aid technical support teams in resolving issues swiftly. Oversee the ongoing development and management of the public API, covering REST and event streaming functionality to support bespoke client integrations. Produce comprehensive technical documentation for both internal stakeholders and external users, leveraging … tools like Swagger for clarity and accessibility. Drive the development of self-serve capabilities to empower clients to independently manage their integrations wherever possible. What the role offers: Join an award-winning, high-growth tech company at the forefront of AI innovation. Work on exciting projects that directly impact the efficiency of global enterprise operations. Collaborate with a More ❯
the brightest minds in AI (many with Ph.D.s from internationally leading Unis), so they need someone who can technically joust at this leve Proven track record in software development, system integrations, and creating developer resources such as APIs, SDKs, and technical documentation. Strong experience across Integrations, FullStack Web Development, and Cloud … for new third-party connectors and integrations. Enhance system observability by improving diagnostics, logging, and tracing to aid technical support teams in resolving issues swiftly. Oversee the ongoing development and management of the public API, covering REST and event streaming functionality to support bespoke client integrations. Produce comprehensive technical documentation for both internal stakeholders and external users, leveraging … tools like Swagger for clarity and accessibility. Drive the development of ‘self-serve’ capabilities to empower clients to independently manage their integrations wherever possible. What the role offers: Join an award-winning, high-growth tech company at the forefront of AI innovation. Work on exciting projects that directly impact the efficiency of global enterprise operations. Collaborate with a More ❯
Senior Full-Stack Software Engineer -London (3 days a week) -An early-stage B2B SaaS company seeks a Lead Software Engineer to join their London based team. The role requires significant experience across Full-stack Engineering in addition to experience leading software engineers. The company is an AI-first B2B business that … the way businesses operate. The team come from some of the UKs most exciting technology scale-ups and are well placed to execute. The role requires significant Full-Stack Engineering experience, including the backend, frontend and platform. It will not suit someone who has formally managed teams and not been hands-on. The stack … who has worked with multiple languages and has an open mind to finding the best technologies to solve their customers problems. Were looking for a hands-on Full-Stack Software Engineer who has experience leading teams of engineers within early-stage and scale-up technology companies, ideally in the B2B or SaaS categories. You will have More ❯
Affinity Labs: Founding Engineer (Backend) Location: London Area, United Kingdom · On-site Company Description At Affinity Labs, we’re building the future of company creation, a full-stack AI venture studio that partners with content creators to co-found authentic, scalable software businesses. By combining AI-native development with creator-led distribution, we're … see your work distributed to thousands of users at launch, and compound impact across multiple product, not just one. Role Description You’ll lead end-to-end backend development across our products: scoping services, designing data models and APIs, building, testing, shipping, and iterating in tight cycles. This is an early-stage, hands-on role with significant autonomy … and responsibility to drive backend product development, collaborating closely with founders, creators, and product/design to turn lean specs into reliable, scalable services. Responsibilities Implement features end-to-end on the backend (APIs → data models → integrations) and maintain quality while moving fast. Run tight build, test, iterate, ship loops; provide realistic estimates and surface blockers early. Manage More ❯
Affinity Labs: Founding Engineer (Backend) Location: London Area, United Kingdom · On-site Company Description At Affinity Labs, we’re building the future of company creation, a full-stack AI venture studio that partners with content creators to co-found authentic, scalable software businesses. By combining AI-native development with creator-led distribution, we're … see your work distributed to thousands of users at launch, and compound impact across multiple product, not just one. Role Description You’ll lead end-to-end backend development across our products: scoping services, designing data models and APIs, building, testing, shipping, and iterating in tight cycles. This is an early-stage, hands-on role with significant autonomy … and responsibility to drive backend product development, collaborating closely with founders, creators, and product/design to turn lean specs into reliable, scalable services. Responsibilities Implement features end-to-end on the backend (APIs → data models → integrations) and maintain quality while moving fast. Run tight build, test, iterate, ship loops; provide realistic estimates and surface blockers early. Manage More ❯
Affinity Labs: Founding Engineer (Backend) Location: London Area, United Kingdom · On-site Company Description At Affinity Labs, we’re building the future of company creation, a full-stack AI venture studio that partners with content creators to co-found authentic, scalable software businesses. By combining AI-native development with creator-led distribution, we're … see your work distributed to thousands of users at launch, and compound impact across multiple product, not just one. Role Description You’ll lead end-to-end backend development across our products: scoping services, designing data models and APIs, building, testing, shipping, and iterating in tight cycles. This is an early-stage, hands-on role with significant autonomy … and responsibility to drive backend product development, collaborating closely with founders, creators, and product/design to turn lean specs into reliable, scalable services. Responsibilities Implement features end-to-end on the backend (APIs → data models → integrations) and maintain quality while moving fast. Run tight build, test, iterate, ship loops; provide realistic estimates and surface blockers early. Manage More ❯
london (city of london), south east england, united kingdom
Affinity Labs
Affinity Labs: Founding Engineer (Backend) Location: London Area, United Kingdom · On-site Company Description At Affinity Labs, we’re building the future of company creation, a full-stack AI venture studio that partners with content creators to co-found authentic, scalable software businesses. By combining AI-native development with creator-led distribution, we're … see your work distributed to thousands of users at launch, and compound impact across multiple product, not just one. Role Description You’ll lead end-to-end backend development across our products: scoping services, designing data models and APIs, building, testing, shipping, and iterating in tight cycles. This is an early-stage, hands-on role with significant autonomy … and responsibility to drive backend product development, collaborating closely with founders, creators, and product/design to turn lean specs into reliable, scalable services. Responsibilities Implement features end-to-end on the backend (APIs → data models → integrations) and maintain quality while moving fast. Run tight build, test, iterate, ship loops; provide realistic estimates and surface blockers early. Manage More ❯
Full-Stack Software Engineer - London - 5 days a week Location: London, central, fully onsite (early stage, London platform team) Salary: Up to £130,000 Seniority: 3-8 years Permanent Early hire on a small platform team I'm working with a well funded early stage AI platform looking for a versatile full-stack … UX Work closely with a tiny, high-calibre engineering team and shape engineering practices and culture Tech profile I need 3 to 8 years of hands-on full-stack experience building production products Strong backend experience in Python and SQL, or strong frontend experience in TypeScript + React (we value either path; full-stackMore ❯
in-office) Team: Join a collaborative global team (London, Mumbai, New York) Tech Stack: Core Java (v17), Angular (v18), Oracle DB Experience Required: Strong core Java development experience Front-end development with Angular Solid understanding of Oracle databases and caching strategies Exposure to financial institutions (investment banking experience ideal) This is a fantastic opportunity More ❯
in-office) Team: Join a collaborative global team (London, Mumbai, New York) Tech Stack: Core Java (v17), Angular (v18), Oracle DB Experience Required: Strong core Java development experience Front-end development with Angular Solid understanding of Oracle databases and caching strategies Exposure to financial institutions (investment banking experience ideal) This is a fantastic opportunity More ❯
in-office) Team: Join a collaborative global team (London, Mumbai, New York) Tech Stack: Core Java (v17), Angular (v18), Oracle DB Experience Required: Strong core Java development experience Front-end development with Angular Solid understanding of Oracle databases and caching strategies Exposure to financial institutions (investment banking experience ideal) This is a fantastic opportunity More ❯
london (city of london), south east england, united kingdom
Lorien
in-office) Team: Join a collaborative global team (London, Mumbai, New York) Tech Stack: Core Java (v17), Angular (v18), Oracle DB Experience Required: Strong core Java development experience Front-end development with Angular Solid understanding of Oracle databases and caching strategies Exposure to financial institutions (investment banking experience ideal) This is a fantastic opportunity More ❯
contributor who can move fluidly across the stack while also influencing architectural design. Experience building scalable software in Python, contributing to the end to end software development process Ability to contribute in areas such as DevOps (Kubernetes) and Front end development (ReactJS modifications) Experience working with AWS Experience influencing the architecture and design of More ❯
contributor who can move fluidly across the stack while also influencing architectural design. Experience building scalable software in Python, contributing to the end to end software development process Ability to contribute in areas such as DevOps (Kubernetes) and Front end development (ReactJS modifications) Experience working with AWS Experience influencing the architecture and design of More ❯
contributor who can move fluidly across the stack while also influencing architectural design. Experience building scalable software in Python, contributing to the end to end software development process Ability to contribute in areas such as DevOps (Kubernetes) and Front end development (ReactJS modifications) Experience working with AWS Experience influencing the architecture and design of More ❯
london (city of london), south east england, united kingdom
Burns Sheehan
contributor who can move fluidly across the stack while also influencing architectural design. Experience building scalable software in Python, contributing to the end to end software development process Ability to contribute in areas such as DevOps (Kubernetes) and Front end development (ReactJS modifications) Experience working with AWS Experience influencing the architecture and design of More ❯
ll also interact with APi's and front end code in a Senior IC capacity. Experience building scalable software in Python, contributing to the end to end software development process Ability to contribute in areas such as DevOps (Kubernetes) and Front end development (ReactJS modifications) Experience working with AWS Tech Stack - Python, ReactJS, Kubernetes More ❯
Greater London, England, United Kingdom Hybrid / WFH Options
Tuza
and 7. Unlimited holiday with a minimum of 24 days. MacBook Pro, monitor, mouse and keyboard. £350 a year towards taking a break. £350 a year towards learning, development or a hobby. Team off-sites around the world (2025 took us to Switzerland and Morocco). Smart and kind teammates - leave your ego at the door. The occasional … screen with one of the team 2-hour programming exercise where you'll be asked to debug, refactor, and extend a sample version of one of our full-stack web applications 1.5-hour culture-fit with CEO, Ed, and a chance to meet some of the team Apply We love meeting engineers who care about what More ❯
london, south east england, united kingdom Hybrid / WFH Options
Tuza
and 7. Unlimited holiday with a minimum of 24 days. MacBook Pro, monitor, mouse and keyboard. £350 a year towards taking a break. £350 a year towards learning, development or a hobby. Team off-sites around the world (2025 took us to Switzerland and Morocco). Smart and kind teammates - leave your ego at the door. The occasional … screen with one of the team 2-hour programming exercise where you'll be asked to debug, refactor, and extend a sample version of one of our full-stack web applications 1.5-hour culture-fit with CEO, Ed, and a chance to meet some of the team Apply We love meeting engineers who care about what More ❯
Hayes, England, United Kingdom Hybrid / WFH Options
The Electric Car Scheme
to join our growing tech team. As a senior member, you’ll play a key role in driving technical decisions, mentoring teammates, and ensuring best practices across the development lifecycle. As the UK’s only B Corp Certified salary sacrifice provider, we’re transforming the future of electric vehicle adoption in the UK through salary sacrifice. Building on … in areas like system design, performance, security, and operational excellence. About you: 5+ years of professional experience building web applications using Ruby, Rails, React, and TypeScript. Strong backend development skills with a willingness to contribute across the fullstack Proactive and self-driven, able to take ownership of tasks from conception to deployment. Excellent … Leave and Pay Use our own scheme to lease a vehicle through salary sacrifice and save 40-70% to drive a brand new electric car £500 pa. personal development budget £100 home office budget Bupa healthcare Equity options - own a part of the business More ❯