full stack javascript engineer jobs in London

You'll build the interfaces people use to run H's agents: the H Platform, where teams deploy an agent, follow it live and replay what it did step by step, and HoloTab, our Chrome extension that controls the browser on its user's behalf. H builds agents that use a computer the way a person does, in the browser and on the desktop. What you'll own How people...

OverviewFeeld is hiring a Senior Fullstack Engineer with a backend focus to join our remote team. At Feeld, we are creating a world where everyone is more intimately connected to each other and themselves. We are building an inclusive, human-centred product and are looking for a Senior Fullstack Engineer with a backend focus to become part of our remote team...

Stack: TypeScript, Python, Agentic AI, LLMs, AWS, PostgresMission: Real-time AI workforce coordination for critical infrastructure and logistics.Tired of building generic CRUD apps that live behind screens and never touch the physical world?A top-tier venture-backed London startup is replacing legacy spreadsheets, radios, and manual chaos with real-time...

Deliverance AI is the Enterprise Agentic Operating System, the agentic control plane that sits above an enterprise's data and model planes, where agents are orchestrated, governed, and made accountable to the board. The platform ships with 100+ pre-built agents and 150+ skills, deploys across five modes (hyperscale, neocloud, sovereign, on-premise, and...

About LendableLendable is on a mission to build the world's best technology to help people get credit and save money. We're building one of the world’s leading fintech companies and are off to a strong start:One of the UK’s newest unicorns with a team of just over 700 peopleAmong the fastest-growing tech companies in the UKProfitable since 2017Backed by...

Overview Graduate Full Stack Engineer – Join an Exceptional Team An innovative technology company is seeking a Graduate Full Stack Engineer to join their talented and collaborative team. This is an exciting opportunity for a recent graduate with a passion for building innovative solutions and working alongside some of the industry’s best...

My Client is a leading Shopify Premier Partner helping ambitious brands build, scale, and optimise their ecommerce platforms. We're looking for a Senior Full Stack Shopify Developer to join our fully remote team and deliver exceptional Shopify and Shopify Plus solutions for a portfolio of high-growth and enterprise merchants. Responsibilities Develop and...

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...

The TP ICAP Group is a world leading provider of market infrastructure. Our purpose is to provide clients with access to global financial and commodities markets, improving price discovery, liquidity, and distribution of data, through responsible and innovative solutions. Through our people and technology, we connect clients to superior liquidity and data...

We're looking for a Lead Full Stack Engineer to join us in London. You will join Liberty Global's AI Platform team in London, working directly with the VP Software Engineering to build and evolve the next generation platforms that power AI driven experiences across our business. This is a hands on technical leadership role for someone who enjoys solving...

The TP ICAP Group is a world leading provider of market infrastructure.Our purpose is to provide clients with access to global financial and commodities markets, improving price discovery, liquidity, and distribution of data, through responsible and innovative solutions.Through our people and technology, we connect clients to superior liquidity and data...

About LiveFlow We are building the next-generation accounting and finance platform to enable lean finance teams to run massive enterprises. We have raised over $21M from top-tier investors including: YC, YC Continuity, Valar Seedcamp, WndrCo, Moonfire, Bradley Horowitz (VP Product, Google) and more. We are helping thousands of companies to streamline their...

Full Stack Ruby Engineer Location: London (Paddington) · Hybrid (3 days in-office) · Full-time About wawa fertility 17% of adults worldwide need help to have a baby and by 2050, that number will reach nearly 50%. Yet only 2% can access fertility treatment today. That’s not a gap; it’s a canyon. And we’re building the bridge. At wawa fertility,...

About Sphere Every breakthrough in trade infrastructure has followed the same pattern: reduce a transaction cost, expand the market. Containerization for goods. SWIFT for money. Stripe for payments. Compliance is one of the last and largest — and the hardest, because trade rules aren't data to be looked up. They're a complex adaptive system with 190+...

A global technology organisation is looking for a Full Stack Software Engineer to develop and enhance a range of data-driven applications, cloud platforms and intelligent software tools.This is a hands‑on, full‑stack engineering role combining backend development, cloud infrastructure, web technologies and emerging AI capabilities.Youll help build...

Your Job Koch Ag & Energy Solutions is seeking a Full-Stack Software Engineer to design and deliver scalable technology solutions that support critical middle-office capabilities, including applications for trading operations, data integrity, and operational controls. You will influence the architecture and evolution of systems that support trading...

Who are we? Look at the latest headlines and you will see something Ki insures. Think space shuttles, world tours, wind farms, and even footballers’ legs. Ki’s mission is simple. Digitally disrupt and revolutionise a 335‑year‑old market. Working with Google and UCL, Ki has created a platform that uses algorithms, machine learning and large language...

Why Ryan?Competitive Compensation and BenefitsBusiness Connectivity Reimbursement (Phone/Internet)Gym Membership or Equipment ReimbursementLinkedIn Learning SubscriptionFlexible Work EnvironmentTuition Reimbursement After One Year of ServiceAccelerated Career PathAward-Winning Culture & Community OutreachThe Full Stack AI Engineer is an early-career software...

We’re looking for a Full-Stack Software Engineer to join our Platform Performance team and help us deliver lightning-fast, scalable experiences to millions of users around the world.In this role, you’ll work across the stack-sharpening frontend speed, optimising backend services, and making our user interfaces more responsive, reliable, and delightful to...

At CGP we develop all business systems and digital products from our offices on the edge of the beautiful Lake District. Why do it all ourselves? The answer's simple. It's all about high standards and trust — we need to have total trust in our systems, products and people to ensure we deliver annual sales of c. £40m. Who are we looking for? If you're...