full stack ruby engineer jobs in London

Build and deliver the next generation of privacy-first analytics capabilities — from rapid prototypes and AI-powered insights to scalable product innovations embedded directly into Matomo’s core platform. Own end-to-end innovation development within a small, autonomous team, working closely with the CTO and senior engineers to turn high-impact concepts...

Capgemini ищет опытного Java Full Stack разработчика в финансовый сектор для работы в подразделении по банковским услугам и облачным приложениям. Ваша задача — проектировать и внедрять масштабируемые...

Arrows Group Professional Limited is seeking a Full Stack Engineer in London with strong Clojure skills and experience in TypeScript and React. This back-end heavy role emphasizes production-grade software engineering and collaborative development across the stack.You will contribute to ongoing projects, maintain existing codebases, and work closely with the...

As one of the world’s top three credit ratings agencies, Fitch Ratings plays a critical role in global capital markets by providing credit analysis, ratings, research, and commentary to financial market participants. For over 100 years, Fitch Ratings has been creating value for global markets through its rigorous analysis and deep expertise, which have...

Portal Biotech seeks two Senior Full-Stack Software Engineers to join the Analysis Platform team. You will design and build backend services, UI and deployment infrastructure that power the platform scientists use to launch analyses, follow runs and interact with reports from the analysis pipeline.London hybrid at Scale Space, White City, 3-4 days/week. This...

Salt Digital Recruitment in London is seeking a hands-on Senior Full Stack Developer specializing in Kotlin and React for a Banking project. You will collaborate across business and tech to ship frequent releases and influence product and technical direction in an XP environment.This role is hybrid—3 days in the office—with start ASAP. The contract spans...

Scale is seeking a Staff Full-Stack Software Engineer (Forward Deployed) in London to lead architectural roadmaps and onsite implementation for global public sector engagements. You will design production-grade AI applications, guide cloud infrastructure evolution, and drive core platform development for diverse global client use cases.You will mentor senior...

Harvey Nash Group in London seeks a Senior Full-Stack Engineer to shape the technical direction of our platform ecosystem. You will work on web portals, automated document generation, and cloud apps processing billions of records, collaborating with analytics engineers and product teams to deliver scalable, data‑driven solutions.You will design APIs and...

Who are we?We’re transforming one of the last untapped industries where billion-dollar enterprises still rely on pen and paper. Inspections are critical to global safety, yet the technology behind them still mostly functions on manual processes.Every day, over a million inspectors manually assess infrastructure, factories, and goods using processes that...

Dunelm, the UK's leading homewares retailer, is seeking a Software Engineer with a strong quality background to contribute to the evolution of our digital platform. You will work across frontend, backend, and testing to deliver high-quality software that enhances the customer and colleague experience.You'll join a hybrid team with regular collaboration in...

Pearson Carter Limited is partnering with a UK-based outdoor retailer to hire a Senior Full Stack Developer. The role centers on C#, React and TypeScript, with microservices architectures and API development in a remote-first environment.You'll work on greenfield and legacy projects, integrate with SQL Server and third-party services, and participate in...

Full-Stack Developer (Founding Engineer)About the job Full-Stack Developer (Founding Engineer)Full-Stack Developer (Founding Engineer)Location: London, United Kingdom (Hybrid)Employment Type: Full-TimeDepartment: EngineeringCompensation: £50,000 + EquityAbout ZenroxZenrox Healthcare UK is building an AI-powered marketplace that connects healthcare providers...

Plexus Resource Solutions Ltd is seeking a Senior Full Stack Developer to build web and mobile apps, demos and developer tools. You’ll take ideas from brief to deployment, collaborating with engineers, product and partners to turn complex tech into user-friendly products.The role is fully remote with a base salary up to $150k USD annually and equity. 5+...

Avallo is hiring a Senior Software Engineer in Greater London to lead implementation across a modern, shared stack. This hands-on role requires owning technical decisions, writing production code, and delivering scalable systems across multiple PE portfolio products.You will design APIs and backend services, build web apps and dashboards, and integrate...

An innovative healthtech/fintech startup in London is seeking a Full Stack Software Engineer to join their team. This role offers competitive salary and equity in an early-stage company focused on redefining financial visibility in healthcare. You will own the technical project delivery and contribute to building high-impact systems. Candidates should have...

Plinth in London is seeking a full stack developer to build an AI-powered charity platform that improves service delivery and funding. You’ll own frontend and backend in TypeScript, shape architecture, and ship features that make a real impact for UK charities.You’ll work with a small autonomous team that values pragmatic, high-quality code over process,...

Smart Communications is a leading customer engagement technology provider for regulated industries. We are seeking an experienced full stack developer to extend our long‑lived enterprise product, from the Java back end to the browser, with a focus on clean, well-tested code.You will join an Agile team, own features end-to-end, and contribute to automated...

A pioneering clean energy company in London is seeking a Software Engineer to enhance their website and develop internal tools. The ideal candidate has a Bachelor's degree in Computer Science and at least 2 years of experience in web development, along with proficiency in React and Django. This role includes automated testing and collaboration with...

Lorien is seeking a hands-on Full Stack Engineer to build a brand-new real-time web portal for institutional bond issuers and sales teams in a greenfield project. You will design, develop and deploy a full-stack web application using ASP.NET Core, C#, React and TypeScript, taking it from concept to production with ownership of the full software...

Owen Thomas | B Corp™ is seeking a product-focused engineer to help develop and scale our AI-powered software. You’ll work across the application, contribute to technical decisions and turn ideas into reliable, production-ready solutions.You’ll build and maintain frontend and backend applications, develop APIs and integrations, and design and deploy...