full stack javascript engineer jobs in London

A fast-growing cybersecurity training platform is seeking a Senior Full Stack Engineer to develop features for millions of learners. This role involves maintaining existing code and collaborating with a cross-functional team. Responsibilities include designing reliable software solutions, mentoring developers, and monitoring system performance. Ideal...

Confidential | Elite Global Hedge Fund | Central London, Mayfair Area4 days on-siteWe are seeking an exceptional Full Stack Software Engineer capable of engineering sophisticated, high-performance applications supporting investment decision-making, trading, portfolio management and risk.This is not a conventional full stack development position. Engineers...

ITap Group Developer Vacancy – Full Stack EngineerHome based workingStack: Node.js, React, MongoDB, TypeScript, Meteor, NativeScript, AngularITAP Group is both a successful online media business and digital payments firm at an exciting growth phase.We are looking for a very keen full stack developer who is willing to learn in a fast-paced environment in a...

We’re an award-winning consultancy known for delivering exceptional products and services through technology. We work closely with organisations to help them accelerate value delivery and create outstanding customer experiences. Our purpose is simple: to empower organisations to make a real difference for people, society, and the planet through technology...

Junior is building the AI operating system for investment research in London. You’ll own features end to end across the frontend, backend and data layer, and ship on a weekly cadence that lands with demanding, paying customers.You should have 3+ years of engineering experience and be genuinely strong in TypeScript, Next.js and PostgreSQL. You’ll talk...

FTSE Russell (LSEG) is building next-generation distribution capabilities that deliver index data to the global financial community — across APIs, cloud platforms, and modern data delivery channels We’re looking for a hands‑on Senior Engineer to design and scale the systems that power this distribution — enabling reliable, secure, and...

Senior Associate, Full-Stack Engineer OpportunitiesAt BNY, our culture allows us to run our company better and enables employees’ growth and success. As a leading global financial services company at the heart of the global financial system, we influence nearly 20% of the world’s investible assets. Every day, our teams harness cutting‑edge AI and...

Job Description Help shape how AI is built, deployed, and scaled across JPMorganChase. You will work on business-critical products that apply modern machine learning to software, cybersecurity, and technology infrastructure. You will partner with engineers and research teams to take ideas from prototype to production. If you enjoy solving complex problems...

A Software Engineer (TypeScript) in UNiDAYS is a hands‑on software development role focused on building innovative solutions to delight our members and drive product success in a fast‑paced company. It’s more than just lines of code; we are looking for a commercially‑minded TypeScript Engineer who can bridge the gap between user needs and business...

Full-Stack Engineer King's cross, London £85,000–£105,000 5x Positions We'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...

LA International is recruiting a Full Stack Developer to support a major Public Sector technology programme in London. You will design and deliver cloud-native solutions using Azure, Vue.js and C#/.NET across the full development lifecycle.The role requires strong Azure experience, REST API design, and frontend work with Vue.js/TypeScript. You will...

5 Days onsite (London) must.Someone with 15+ years of industry experience , preferable 5+ years in banking , trade management.Understanding of Vanilla products ( Macro, Credit, Securitisation). Experience of working with HTML5, Angular, REACT, NPM, Java Spring Boot, Post Gres/Cloud SQL. Understanding of containerised deployment – Kubernetes, ECS on...

Salt Search is expanding its London engineering team and seeking a talented Full Stack Software Engineer to build and scale their cloud-native AI platform, applying Go, Python, React and TypeScript to real-time video and sensor data.You will own features end-to-end, design scalable APIs, contribute to distributed systems, and collaborate with product and ML...

FULL STACK Engineer (Next.js / React)- TOP SaaS Company! High-Growth SaaS | Build Elegant, User-First ProductsPolite Note: no visa sponsorships or transfers on offer as this company does NOT have a license. In partnership with Robert Half Limited. Location: London (Hybrid working 3 days in the office and 2 days from home) We're a high-growth SaaS company...

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...

Liberty Global in London is seeking a hands-on Full Stack Engineer to design, build and evolve AI-first telecom platforms serving millions of customers across multiple countries. You will work with the VP Software Engineering to translate architecture into production code, shaping patterns, ensuring security and scalability, and leading architectural...

Foundation Partners, embedded with Flok Health, seeks driven software engineers with product mindset for full-stack work focused on UX and scale. The role is in-person in Cambridge, UK (4 days a week), with relocation support for those with existing Right to Work; sponsorship is not offered.You will collaborate with design, product, and leadership to deliver...

Senior Full Stack Software Engineer (Typescript/Go) Join to apply for the Senior Full Stack Software Engineer (Typescript/Go) role at Birdie About Birdie At Birdie, we’re reimagining care for older adults. We’re building the technology that powers the future of home healthcare, empowering care teams with tools to deliver better, more dignified care, and...

DeepL in London is seeking a senior engineering leader to grow and guide a full stack team delivering the customization surface and related enterprise features.You’ll partner with product and design to shape user experiences, own tech direction, and drive adoption of large-scale translation tooling. This role blends hands-on coding with strategic...

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...