full stack javascript engineer jobs in London

Morela is seeking an Embedded Full Stack Engineer for a 6-month initial contract, Outside IR35, based in London with hybrid work. The role involves building Python back-end services and a React/TypeScript front end, embedded within a client team and responsible for secure deployments and ongoing delivery across a cloud-based platform.You will work on a...

Wondersphere, a London-based branding and digital studio, is seeking a Senior Full-stack Developer to own the technical direction of sophisticated websites and digital platforms. You will collaborate with strategy and design teams to translate complex requirements into robust, scalable solutions.You'll lead development alongside a freelance Technical...

Robinhood in London is seeking a Senior Full-Stack Software Engineer to own end-to-end features across Prime surface, from backend services to frontend and backoffice screens. You will lead engineers through ambiguous problems, set the technical bar for resilience, and own work across settlement, onboarding, reporting, and operations tooling.This role...

Harnham - Data and Analytics Recruitment is seeking a Senior Full Stack Engineer to join a hybrid London-based team. You will build AI agents, develop prototypes, and modernise legacy systems, delivering measurable results across the data platforms.You’ll work with Python, TypeScript, and SQL in a fast-paced environment, collaborating with senior...

Oho Group in London is seeking a skilled Full-Stack + Agentic AI Engineer to join a growing startup. You will own systems end-to-end, from backend services to frontend features, and directly influence real-world infrastructure.With 3+ years in full-stack and agentic AI, you will work with founders to ship production-grade software, contributing to...

Descrial is hiring Full-Stack Engineers to build end-to-end software for confidential financial data. You will work with TypeScript/React on the frontend, Python on the backend (FastAPI or Django) and PostgreSQL on AWS.This cohort spans nine engineers across full-stack, front-end and back-end roles in King’s Cross, London. You’ll own features from schema...

Voop is building the world's first safe mobile platform. As a Fullstack Engineer, you’ll develop and scale our platform across web and mobile, collaborating with Nick Pasha-Gubbins (Co-Founder & CTO) and the engineering team on architecture and features for Voop for Care, Schools, and Parents.You will work with modern stack: Typescript, React, React...

Morgansholding is looking for an experienced full-stack engineer to build and own the web platforms behind Morgan’s Grocer in the UK. You’ll ship the online storefront, APIs, and internal tools, focusing on performance and reliability for high-traffic shopping and delivery.You’ll work across frontend (React/Next.js/Vue) and backend (Node.js, Python,...

BigHand is seeking a Full-Stack Engineer to design and ship Matter Pricing products post-acquisition. You will work on features end-to-end, balancing UI/UX with robust backend services and agentic AI capabilities.The role demands at least 3 years of commercial experience, strong TS/React skills, and a STEM background. You will operate in a hybrid setup with...

Project Global Limited is seeking a Senior Software Developer with Active SC Clearance to join our client’s team in the UK. The role is hybrid with office attendance 1-2 days per week in London, Newcastle, Leeds, Manchester, Blackpool or Sheffield, and remote work within the UK.The contract is 12 months and day rate is competitive. You will work in a...

Miller Maxwell Ltd. is seeking a Full Stack QA Engineer to join a front-to-back trading software team. You will work across manual and automation testing, shaping test strategies and owning quality across the full lifecycle of complex trading workflows.This role requires strong hands-on testing, automation expertise with Playwright and TypeScript, and the...

ScienceMachine in London is seeking a Senior Full Stack Engineer to join the founding team, owning both product and infrastructure development. You will work across frontend interfaces used by scientists, API design, and deployment pipelines in a fast-moving environment.You will design and build robust backend services with Python, manage Terraform-driven...

HCLTech is seeking a Senior Java Engineer to strengthen its RMS Trade Processing platform. You will design and deliver scalable full-stack solutions using Java, Spring Boot, Angular, and React, contributing across backend and frontend components in a business-critical system.The role requires 8+ years of enterprise software experience, expertise in RESTful...

We're putting together a talented team to build the #1 training platform for Runners We help everyday runners become outstanding by building an incredible app providing world‑class training, coaching and community for everyone, whether you're improving your 5k time or training for your first marathon. We’re growing extremely fast! In November 2023 we...

Mountain Warehouse is seeking technically strong senior developers to join our development teams across Web Development, Customer Experience & Service, and Buyers & Merchandising. The role involves working on a mix of internal services and public-facing apps using C#, SQL Server, Next.js, React & TypeScript, with monoliths and microservices in cloud,...

Who we are About Stripe Stripe is a financial infrastructure platform for businesses. Millions of companies—from the world’s largest enterprises to the most ambitious startups—use Stripe to accept payments, grow their revenue, and accelerate new business opportunities. Our mission is to increase the GDP of the internet, and we have a staggering amount...

BNY, a leading global financial services company, is seeking a Senior Vice President, Full-Stack Engineer to lead high-impact engineering teams in London. The role involves owning end-to-end delivery of mission-critical software, raising engineering standards, and collaborating with product and business stakeholders to create secure and scalable systems.The...

Lindus Health is hiring a software engineer for an onsite role in London with hybrid flexibility. You will help build and scale our platform powering clinical trials, collaborating with product managers, designers and users.The stack spans frontend (TypeScript/React), backend (Python/Node.js/Postgres) and infrastructure (AWS). We expect 3+ years in software...

Figma is seeking software engineering interns to contribute to multiple layers of our product and infrastructure from our London hub. You will join small, collaborative teams, pair with mentors, and work on meaningful features or tools with real impact.You’ll learn, ship, and grow while gaining exposure to internal systems and open collaboration across...

Broadridge Financial Solutions seeks a Senior Full Stack Developer to join the AI Enablement Team. You will design, develop, and enhance AI-enabled platforms with a focus on GenAI, vector stores, RAG, and context engineering.The role requires leadership, collaboration with architects, and delivering scalable software solutions. The ideal candidate has 7+...