full-stack developer jobs in London

Discover your future at Citi Working at Citi is far more than just a job. A career with us means joining a team of approximately 219,000 dedicated people from around the globe. At Citi, you'll have the opportunity to grow your career, give back to your community and make a real impact. Job Overview This is a chance to be at the heart of a major...

ABOUT USLiberty Global is a world leader in converged broadband, video and mobile communications services. We deliver next-generation products through advanced fibre and 5G networks that connect 85 million subscribers across Europe and the United Kingdom. Our businesses operate under some of the best-known consumer brands, including Virgin Media-O2 in the...

Our client is a leading global investment bank.All candidates should make sure to read the following job description and information carefully before applying.JOB DESCRIPTIONAre you a software engineer who thrives at the intersection of technical delivery and application ownership? We build technology that powers one of the world's most trusted financial...

Infused Solutions is seeking a Senior Full-Stack Engineer to join an early-stage AI startup in London, working four days per week in the office. You’ll own features across the stack, influence architecture, and help shape the product as the company scales.You’ll work with a small, high-performing team, using TypeScript, Node.js and React, and you’ll...

Xcede in London is seeking a Senior Product Engineer to join an ambitious AI-enabled consumer healthcare platform. This hands-on role centers on Python at its core, with ownership across APIs, asynchronous data processing, databases, integrations, and customer-facing applications.You'll collaborate closely with the CTO and cross-functional teams to take...

Salary: £47,500-£55,000 per year, depending on experience. Location and working arrangements: 3-4 days per week in the London office preferred (location TBC in SW London - expected to be between Battersea and Southwark) About Traktara - www.traktara.com Traktara’s mission is to speed up electricity grid connections for critical infrastructure like...

Our Company At Quantum, we connect global brands with high-intent consumers. We turn intent into action and complexity into clarity. Our Mission is clear, to help smarter, faster buying decisions. Our vision, to be the world’s most used digital comparison service, delivering value and simplicity to millions. We drive growth through data-driven affiliate...

Miller Maxwell is working with a well-established electronic brokerage that is rebuilding its core trading platform from the ground up. This is not a greenfield startup product — it is a system that moves billions of pounds of daily flow, used in real time by front-office traders across three global offices. The engineering standards reflect that.The Full...

Plain is redefining customer support for the next generation of B2B companies. We’re building the fastest, most powerful platform to help companies move beyond reactive support and build true customer relationships.Some of the world’s most forward-thinking companies - like Cursor, Vercel, and Granola - trust Plain to unify all customer interactions,...

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...

This is a chance to be at the heart of a major transformation within a global financial leader. We are building new GenAI-powered solutions from the ground up, and we're looking for a skilled full-stack engineer to help us shape the future of our technology. You will work on high-impact projects and be part of a collaborative and forward-thinking team.Key...

Job Description BNY is seeking Engineers who amplify team impact through technical leadership and force‑multiplier behaviors. In this role, you will elevate those around you by raising engineering standards, accelerating delivery, applying sound technical judgment to complex problems, providing thought leadership and coaching others. You will use...

**Front End / Full Stack Engineer** London (Hybrid, 2 days per week) | Up to £85,000 This is an opportunity to join a high-growth technology business that is transforming the way people engage with and manage their finances. Working within a modern engineering environment, you will help build innovative digital products while leveraging AI-assisted...

TreasurySpring is the product of an obsession with fixing the fundamental structural problems in money markets. Our fascination with the sector began painfully, during the Global Financial Crisis of 2008, where we had a front-row seat to watch the evaporation of liquidity in fixed income and the near collapse of the entire short-dated funding markets. We...

Black Pen Recruitment is seeking a Senior Full Stack .NET Programmer for a prestigious consulting/Big 4 client, onsite in Malta with relocation support. The role involves delivering Microsoft Dynamics 365 ecosystem integrations and enterprise‑scale applications.You’ll work across .NET C#, TypeScript, React and CSS3, collaborating with Solution Architects...

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...

Select how often (in days) to receive an alert:Atos Group is a global leader in digital transformation with c. 63,000 employees and annual revenue of c. €8 billion, operating in 61 countries under two brands — Atos for services and Eviden for products. European number one in cybersecurity, cloud and high performance computing, Atos Group is committed to...

Blue Light Card. Individually great, together unstoppableThe Role and the TeamAt Blue Light Card, we’re on a mission to support our millions of members with meaningful digital experiences.We have recently undertaken a replatforming transformation, setting the foundations to tackle exciting greenfield projects and further enhance the experience for our...

EveryMatrix is a leading B2B SaaS provider delivering iGaming software, content and services. We provide casino, sports betting, platform and payments, and affiliate management to 300 customers worldwide. But that’s not all! We’re not just about numbers, we’re about people. With a team of over 1400 passionate individuals spread across twelve countries...

Why Ryan? Competitive Compensation and Benefits Business Connectivity Reimbursement (Phone/Internet) Gym Membership or Equipment Reimbursement LinkedIn Learning Subscription Flexible Work Environment Tuition Reimbursement After One Year of Service Accelerated Career Path Award-Winning Culture & Community Outreach The Full Stack AI Engineer is an...