full stack ruby engineer jobs in London

Expedia Group in London is seeking a Software Development Engineer II (Full-Stack) to build React-based user interfaces and backend capabilities. You will own features from requirements through delivery, collaborating with product management, backend teams, platform teams, and brand teams to create configurable components and platform capabilities.The role...

A pioneering e-commerce platform is seeking a Senior Full Stack Engineer to develop impactful features for their pre-commerce platform. You will work across frontend and backend systems, collaborating closely with a small engineering team. The role requires 5+ years of experience in both frontend and backend development, focusing on delivering customer value...

A rapidly growing payments technology company in London is seeking a Senior Full Stack .NET Engineer to enhance their team. This pivotal role involves designing cloud-native applications and integrations, with strong focus on .NET Core, Microsoft Azure, and SQL. The ideal candidate has 5+ years of experience and is excited to influence product strategy in a...

J.P. Morgan in London seeks a Full Stack Engineer to design, build, and support scalable web applications and integrations using Java, Python, and React.You will collaborate with product, marketing, and partners to translate requirements into technical solutions and contribute to AI initiatives for content generation and personalization. You will optimize...

Staff Full-Stack Software Engineer, (Forward Deployed), GPS London, UK Scale’s rapidly growing Global Public Sector team is focused on using AI to address critical challenges facing the public sector around the world. Our core work consists of: Creating custom AI applications that will impact millions of citizens Generating high-quality training data for...

State Street is seeking an experienced Java Full Stack Developer to join our Digital Asset team. You will deliver end-to-end product experiences across Java back-end services and modern UI components, enabling digital asset capabilities in a regulated financial services environment.You will build REST APIs, orchestrate microservices, and develop responsive...

Eames Consulting Group seeks a Senior Full Stack Engineer to join a product-focused team building customer-facing digital solutions. You will own delivery across the full software lifecycle, designing, developing and deploying modern cloud-native applications on Microsoft Azure.You will collaborate with Product, Design and Engineering to build across...

Online Filings is seeking a Senior Software Engineer to architect and develop our next-generation web application and API. This role requires technical leadership, hands‑on development, and mentoring of junior developers to ensure scalability, security and performance.If you are passionate about software development, enjoy solving complex problems, and are...

VIQU Limited is seeking a Full Stack Engineer for a contract role in the UK, delivering across the stack from Python back end to TypeScript front end. The role involves on-site work in secure, air-gapped environments and close collaboration with customers and senior engineers.You will own features end-to-end, implement CI/CD, and help harden security while...

Senior Full-Stack Engineer - AI Startup (Typescript, Node, React) London - 4 days per week in the office Permanent | £120,000 - £150,000 We're working with an exciting early-stage AI startup building an agentic platform for institutional finance. The company is a small, high-performing team of fewer than 10 people, moving quickly and building towards its...

As a Senior Full Stack Software Engineer at Cabiri, you will play a crucial role in designing, developing, and maintaining our software solutions. You will work collaboratively with cross‑functional teams, utilizing your expertise in both front‑end and back‑end technologies to create scalable and high-performance applications. The successful candidate...

AJ Bell is hiring an experienced Full Stack Engineer to help build services powering apps and websites. You’ll work across the stack with Node.js, TypeScript, React, MongoDB and AWS, collaborating with Product, UX and Business teams to deliver reliable, scalable solutions.The team emphasizes engineering excellence, autonomy, and continuous improvement,...

Zapp is hiring a senior full-stack engineer to own end-to-end development for iOS, Android, and web experiences. Join an AI-first company building rapid, customer-focused solutions with NestJS, React, and GraphQL.You’ll work across backend, web, and infrastructure, and bring AI into daily workflows to ship impactful features. We value curiosity, energy,...

Full Stack Developer – Treasury TechnologyAbout MillenniumMillennium is a global, diversified alternative investment firm, founded in 1989. Defined by evolution, innovation and focus, Millennium’s mission is to deliver results for our investors.Our people are empowered with both independence and support: the autonomy to pursue ideas with conviction and...

Admanage.ai is building the Cursor for ad management and empowering brands to launch hundreds of ads quickly across major platforms. This high-ownership full-stack role lets you design and deliver features across the entire product, from database schemas to UI, with a focus on performance, testing, and robust architecture.You'll collaborate directly with the...

Lendable is seeking a full-stack Python engineer to join the Central Operations team. You will own web applications and automations across Cards, Loans and Motor, shipping features used daily by Ops teams at scale.Ideal candidates have strong Python web experience (FastAPI/Django/Flask), JS/TS with React, and interest in Generative AI. Hybrid work model with...

Perci Health, the UK’s largest virtual cancer clinic, seeks a Senior Full-Stack Engineer to advance a live platform used by patients. You will help shift how the platform is built, embracing AI-assisted coding, reuse over rewrite, and a strong focus on safety, testing, and regulatory compliance.This is a remote-first, high-impact engineering role. You will...

Burendo is recruiting an experienced Full Stack Engineer to operate and improve production systems, delivering small changes, incident response, and ongoing platform reliability improvements. You will join an L2/L3 managed service team supporting critical applications across multiple technologies and clouds, with on-call duties and technical...

Alto Software Group is seeking a software engineer for a 12-month maternity cover, working 2 days per week in our London HQ. The role involves shaping a dual-stack architecture (C#, TypeScript) with AI-enabled development and AWS services.You’ll collaborate with product teams to design and deliver features end-to-end, balancing speed and quality in a...

A tech recruitment firm based in London is seeking a Senior Full Stack Engineer with experience in Python and modern frontend frameworks like React and TypeScript. In this hybrid role, the engineer will design backend systems, create scalable frontend architecture, and integrate complex systems. The ideal candidate is a strong communicator who enjoys...