full stack javascript engineer jobs in London

PULL UP LTD in Greater London is looking for a senior software engineer to join our core engineering team. Your role will involve designing scalable backend services and building user interfaces using TypeScript, React, and Node.js. You will also mentor junior engineers and contribute to architecture decisions.With more than 5 years of experience required,...

Staff Software Engineer – Full Stack (Bangkok based, Relocation provided) 16 hours ago – Be among the first 25 applicants About Agoda At Agoda, we bridge the world through travel. Our story began in 2005, when two lifelong friends and entrepreneurs, driven by their passion for travel, launched Agoda to make it easier for everyone to explore the world....

Descrial is hiring full-stack engineers to build the product end‑to‑end, from database to interface. The role emphasizes security, tenant isolation, auditability and a polished user experience for confidential financial data.You’ll use TypeScript and React on the frontend and Python (FastAPI or Django) on the backend, with PostgreSQL on AWS. Join a...

A leading recruitment agency is looking for a Full Stack Developer to join a global law firm's Engineering team. The ideal candidate will have strong skills in HTML5, CSS3, and RESTful APIs, and will thrive in an Agile environment. Key responsibilities include building scalable solutions and collaborating with UX designers. This full-time position offers an...

Web Developer - Full StackLondon Our client, a fast-growing Ecommerce brand, is looking for a full-stack Web Developer to join their team. The role is mainly remote with up to 2 visits to a London office per month. It is paying up to £50k + bens. The ideal person will have experience building apps in Shopify, have experience with HTML, CSS and JavaScript....

Unmind is hiring a Software Engineer (Full Stack) to ship features that help employees of enterprise clients find the right mental health support. You’ll work with TypeScript, React, GraphQL, Node.js, Python, Golang and SQL, and use Claude Code to enhance development.This is a remote-first role with monthly travel to London. You’ll join a team focused on...

📍 Location: UK or Netherlands 🛠️ Tech stack: Ruby, Angular, TypeScript, SASS, design system, Contentful, GitHub Actions 🎯 Focus: hands-on full stack product work, with room to grow into frontend About Tech At Bloom & Wild Group 🌸 We're Europe's largest direct-to-consumer flower and gifting business (Bloom & Wild, bloomon and Bergamotte)....

Fireblocks is the company bringing global finance onchain. Backed by over $1 billion in capital, we are the premier digital asset infrastructure provider trusted by thousands of industry-defining financial institutions, including banks, payment providers, fintechs, and global corporates such as BNY Mellon, BNP Paribas, ANZ Bank, Western Union, Stripe, and...

What we do. Electric Car Leasing Why we do it. Greener. Fairer. Future. We’re looking for a Senior Fullstack Software Engineer (Python and React) to join our product and engineering team building the systems that power our ability to revolutionize the electric car leasing industry. Our tech stack is Python with GraphQL, React with Next.js, PostgreSQL and...

About The Role HTS Assist is Hopper's agentic AI assistant for travel, resolving flight changes, cancellations, refunds, and bookings over chat and voice for some of the world's largest travel brands. We're looking for a senior full stack engineer to anchor this product, owning the realtime and voice layer end to end while building across React/TypeScript...

About Us We are a growing digital team working with a wide range of clients to build, scale and maintain robust, high-quality web applications. Job Title Full Stack Developer Job Type Permanent Base Office London Working Structure Hybrid About Us We are a growing digital team working with a wide range of clients to build, scale and maintain robust,...

Harnham - Data & Analytics Recruitment is partnering with a fast-growing WealthTech business to hire a Full Stack Engineer focused on React/TypeScript and Java. The role is roughly 65% frontend and 35% backend, with hybrid working in London two days per week.You will join a cross-functional squad building a modern web platform, delivering features, improving...

throxy is building an ambitious AI-powered dialing and data platform in London. We’re seeking experienced fullstack engineers to own end-to-end systems, including frontend and backend work with TS/React (Next.js). A CS degree or equivalent and UK-based relocation with visa sponsorship are required.Join a small, senior team shipping core infrastructure that...

Starling Bank in London, UK seeks a Full Stack Engineer (ML Ops) to join our data-driven fintech team. Build scalable services, REST APIs, and frontend with React/Redux, leveraging Java and AWS in a hybrid setup.The role offers a base salary of £70K–£110K, permanent contract, and hybrid working up to 2 remote days per week. Visa sponsorship is not...

Hopper Inc. is seeking a senior full stack engineer to anchor HTS Assist, owning realtime and voice end-to-end.You will build across React/TypeScript front ends, Scala and Python services, and cloud infra, with a focus on multi-tenant, scalable architecture and safety/compliance integration. The role emphasizes ownership, mentoring, and shaping the platform...

CoinDesk is seeking a Senior Full-Stack Engineer to join the Media Engineering team. You will own complex features across web, mobile apps, and services, with a focus on performance, reliability, and security.You will work with Next.js, React, Node.js, and TypeScript, applying automated testing and DevSecOps principles. Experience with AI tooling and...

FlexTrade is seeking a Senior Web Developer to join the FlexONE team and own critical product surfaces across web and mobile apps. You’ll work end-to-end on a Scala + Play backend and a React + AG-Grid frontend, using gRPC for communication with our core product’s backend systems.You will lead the technical direction as we build our Web app from an MVP...

About Junior Junior is building the AI operating system for investment research. Our software helps private equity firms, consultants and financial institutions complete high-stakes research workflows dramatically faster - from diligence and memo writing to market mapping, research synthesis and strategic analysis. We’re trusted by several of the world’s...

About Us At algo1, we are reinventing one of the world's most familiar experiences: the in-store grocery trip. We are building an AI-native product that understands each shopper, responds to their context in real time, and makes an everyday experience less stressful, more personal, and more engaging. We're backed by leading investors and founded by two...

Lindus, a London-based health tech startup, is hiring a software engineer to help power the next generation of clinical trials. Join a fast-moving team in an onsite role with a flexible hybrid arrangement near London Bridge, and contribute to a platform that manages complex trials and brings new treatments to patients faster.You’ll work across frontend,...