full stack ruby engineer jobs in London

A leading technology company in London is seeking a Senior Full Stack Engineer to work on innovative Greenfield projects. This role involves a 50/50 split between backend and frontend development, utilizing a tech stack that includes TypeScript, Elixir, Elm, and AWS. You will have a significant role in a small, agile team, focusing on complex data-centric...

Devonshire Hayes Recruitment Specialists Limited are recruiting an experienced Full Stack Developer to build a greenfield trading platform for a financial services business. This 12-month FTC role is 3 days per week onsite in the City of London with full perm benefits including bonuses.You’ll drive real-time trading interfaces with Next.js and React, while...

Job Description We are seeking an experiencedJava Full Stack Developerwith strong expertise in building scalable enterprise applications using modern Java technologies, cloud-native architectures, and microservices. The ideal candidate will have hands-on experience withKafka, Kubernetes, API Security, Observability tools, SQL databases, and Spring-based...

EFG (ESL FACEIT Group) in the United Kingdom is seeking a seasoned Full Stack Developer to join the Publisher Operations team. You will build tooling to support events and programmes for partners, collaborating with operations, competition, and production to scale multi-title esports events.You will own features end-to-end, develop with React/Next.js and...

UNiDAYS is seeking a hands-on Software Engineer (TypeScript) to build innovative solutions that delight our members and drive product success in a fast-paced company. You will bridge user needs and business goals while delivering resilient, scalable code.You will work across product, delivery and engineering teams to define, refine, build, and measure the...

E-Frontiers in London is seeking a Java Full Stack Software Engineer with UK SC clearance for a 12-month hybrid contract. You will design, develop and lead full-stack solutions using Java, Spring Boot, Angular/React, and AWS, working within Agile teams to deliver impactful public-safety software.Join a collaborative team, mentor peers, and help shape...

H is seeking a senior frontend engineer to build the H Platform web app and the HoloTab extension. You’ll design live run views, replay capabilities, and determine how data flows from Python APIs to the UI.You’ll work on cross-cutting UI patterns and shared components, ensuring a smooth end-user experience for FDEs and customers. You’ll join Product...

FlexTrade Systems is a provider of customized multi-asset execution and order management trading solutions for buy- and sell-side financial institutions. Through deep client partnerships with some of the world's largest, most complex and demanding capital markets firms, we develop the flexible tools, technology and innovation that deliver our clients a...

# Full Stack Developer,November 30, 2025### Job Description**On behalf of our client, we are seeking a Full Stack Developer – London, UK (Full-Time Permanent Role).**Our client, an established technology-driven organisation based in London, is looking for a Full Stack Developer to build modern digital platforms, scalable backend services, and high-quality...

Full-Stack EngineerKings cross, London£85,000–£105,0005x PositionsWe're hiring Full-Stack Engineers to build Descrial end to end, from the database to the interface. Our clients trust us with confidential financial data, so security, tenant isolation, auditability and a polished experience are engineering constraints, not extras.You'll work in TypeScript...

Clova Search - Ruby on Rails Specialists in London is seeking senior Ruby on Rails engineers to join a mission-driven healthtech startup. Roles are senior IC with potential for upper-mid levels, offering a backend-led, full-stack focus and a proactive product mindset.The role is hybrid, based at Paddington, 3 days in the office and two remotely; salary range...

A dynamic software development company in Greater London is seeking a Senior Full Stack Software Engineer. In this role, you will design and maintain scalable applications, leveraging your expertise in TypeScript, Node, Next.js, and React. You will mentor junior engineers, conduct code reviews, and tackle technical challenges proactively. Candidates should...

About Wheely Wheely is redefining premium transportation across major cities in Europe, the US, and the Middle East. We blend cutting-edge technology with the craft of five-star chauffeuring to deliver an experience trusted by more than 100,000 active riders and 1,200 corporate accounts. We’re a profitable, fast-growing scale-up with $43M raised and over...

Senior Software Engineer: Clinical Data Platform · Wellsheet at ElsevierAbout Wellsheet at Elsevier: Wellsheet is a clinical decision support platform used by more than 20,000 providers across 100+ hospitals. We embed directly in the EHR (Epic, Cerner, Athena) and put AI-generated clinical context in front of clinicians at the bedside. In 2026 Wellsheet...

As a Full Stack Developer, you will discover, design, build, cloud-based applications and prototypes that support discovery workYou’ll work across both front-end and back-end development, helping teams explore, test, and validate new technical approaches and digital services that underpin wider reform programmesDesign, develop, and test applications using...

TL;DR: We’re looking for a full stack developer that wants to make a difference. Come join us to build a platform to radically improve service delivery and increase funding to the charity sector. We don’t have any hard cutoffs for years of experience, you’d be a great fit if you like building products but want a lot more freedom to do so with a large...

Emma is looking for a capable full-stack engineer with at least 2 years of experience to help build our backend and mobile/web apps.You will work with libraries and frameworks such as gRPC, Redux, React Native, React and Next.js on an ambitious roadmap, delivering high-quality code in a fast-paced, ownership-driven environment.We operate from our London...

We are looking for a mid-level full stack developer to join our product focussed team. The Role We are looking for a passionate full stack developer (2+ years of experience) to join our team. In this role you will get involved in both Frontend and Backend projects, from inception to delivery. It’s important to us that all our team members have buy‑in to...

Role purposeYou'll lead engineering on a multi-year programme to modernize and migrate a large portfolio of middle-office applications to AWS. The portfolio covers cloud-native rebuilds, like-for-like migrations and retirements. You'll own engineering delivery and the AI-augmented delivery model: using AI agents and assistants across discovery, code...

Hunter Bond is seeking an experienced Senior Full Stack Engineer to design, develop and support market data platforms within a Global Markets context. You will work on end-to-end solutions spanning front-end, backend, APIs and data layers in production-grade environments.The role emphasizes Python backend and NoSQL data stores, with gRPC REST APIs, and...