full stack ruby engineer jobs in London

Oliver Bernard is seeking a Senior Full Stack Engineer for a fast-growing B2B tech company. You will build scalable web applications across the full stack, partnering with product and design to deliver high-impact features that customers genuinely value. This hands-on role offers ownership and the opportunity to influence technical direction.Visa sponsorship...

Preply is seeking a Senior II Full Stack Engineer to join a fast-growing, globally distributed team in a backend-heavy role. You will own backend and contribute to frontend work in React/TypeScript while shaping architectural direction and driving impactful product outcomes.You’ll collaborate with Product, Data, and UX teammates to deliver scalable...

HCL Technologies Limited is seeking a Lead Java Engineer - Full Stack Developer to join our RMS Trade Processing platform in London. You will contribute to a strategic, fintech-focused system handling complex OTC derivatives across the trade lifecycle, from booking to settlement, using Java, Spring Boot, and React.You will drive architecture decisions, own...

SproutsAI is seeking a Full Stack Software Engineer to design and deploy production-grade AI agents for enterprise workflows. You will build scalable back-end and full-stack systems in Python (with Go exposure) and own features from discovery to production.You will work directly with enterprise customers to understand processes, integrate agents with core...

Building and enhancing front-end trading and workflow applications using React, TypeScript and Java.Developing and maintaining backend services supporting order routing, execution workflows and trading infrastructure.Partnering closely with quantitative research, execution and trading teams to deliver new functionality and platform enhancements.Helping scale...

# Senior Software Engineer - Full Stack (Merchants)DeliverooOn-siteUnited KingdomSoftware EngineeringPosted Sep 11, 2026About the Team Merchant EMEA Engineering builds the technology that helps merchants join, grow, and operate successfully across our markets. Our organization brings together the strengths of Wolt and Deliveroo and supports...

A leading AI technology firm is looking for a Full Stack Software Engineer (Forward Deployed) to collaborate with public sector teams in building impactful AI applications. The role involves designing architectures, mentoring staff, and ensuring scalable solutions. Ideal candidates will have a Master's or PhD in Computer Science, over 10 years of full-stack...

About The RoleTaktile is building a platform for creating, publishing, and executing AI-powered agents that help teams automate complex workflows in financial services. The Agents team owns the agent execution runtime, tool orchestration, and platform infrastructure that makes this possible, including the conversational copilot experiences built on top of it...

Take a leading role in crafting next-level, end-to-end solutions for Apex Invest, ensuring every digital touchpoint not only delights clients but also propels innovation and sets new standards of excellence throughout ourorganisation. About Apex Invest At Apex Invest, we specialise in cutting-edge investment solutions that transform the way businesses and...

Harnham - Data and Analytics Recruitment in London is partnering with a global professional services firm to recruit a Full Stack Product Engineer. You will join a newly created R&D function working with AI, Data Science, Data Engineering and Product Engineering from concept through to production.In this role you will lead the development of applications,...

McGregor Boyall is seeking a Full Stack Software Engineer to join a new engineering team building a cloud-native platform in partnership with a leading cloud provider. You will design, develop, test, and deploy scalable services using modern technologies within an Agile framework.You will gain exposure to AWS architecture, Lambda, API Gateway, and AppSync...

Job SummaryWe have an exciting and rewarding opportunity for an experienced Software Engineering Leader to join JPMorgan Chase.As a Lead Software Engineer within Asset & Wealth Management Risk Technology, you will lead the design, development and evolution of a business-critical risk analytics and reporting platform used by Risk managers and senior...

⚡️About VolterVolter is a top-tier climate VC-backed B2B energy tech platform building the products that make clean, renewable power simple for businesses everywhere. The energy transition is a huge and vital opportunity, but it's currently too difficult for commercial & industrial companies to achieve. Historically, the energy industry has been too...

METHODS is seeking a Full Stack Developer to design, build and test cloud-based applications in a mixed front-end and back-end environment. You will work with Java/Spring Boot, Python, and TypeScript/Angular, building RESTful APIs and integrating with back-end microservices.You will contribute to DevOps pipelines, leverage Azure services, and support...

MJA (London) Ltd in the City of London is seeking a detail‑oriented engineer to join an existing team, quickly understand the architecture, contribute production‑quality code, troubleshoot distributed systems, and independently drive assigned deliverables through to deployment.Experience with MongoDB, Express.js, Angular, Node.js, C#/.NET Core 10+ and...

the company is seeking a Full Stack Software Engineer to build custom web and backend solutions for enterprise clients in London. You will work with React, TypeScript, Node.js, Python, Go and/or Java in a Scrum environment with one-week sprints and peer reviews.The role emphasizes collaboration with Designers and Project Management, delivering end-to-end...

Meet DeepLDeepL is a global AI product and research company focused on building secure, intelligent solutions to complex business problems. Over 200,000 business customers and millions of individuals across 228 global markets today trust DeepL's Language AI platform for human-like translation, improved writing and real-time voice translation. Founded in 2017...

JPMorganChase is seeking a Full Stack Software Engineer, AI Engineering, to design, deploy, and maintain AI products across the firm. You will work with software engineers, data engineers, and researchers to bring production-ready capabilities to market, focusing on secure, scalable, and reliable systems.The role emphasizes collaboration with data scientists...

Apex Invest seeks a passionate Full Stack Engineer to craft end-to-end solutions for our investment platform. You will design, develop, and deploy scalable software, balancing frontend and backend excellence to deliver superior client experiences.You will own features from ideation through deployment, collaborate across teams, and stay ahead of industry...

Junior C# Full Stack Software Engineer – Fintech50,000 plus BensRemote WorkingQuant Capital is urgently looking for a Junior C# Full Stack Developer to join our high profile client.My Client is a well known global (yet not too corporate) financial software (fintech) business that has developed a unique proprietary front office lending solution.The Software...