full-stack web developer jobs in London

Harnham in Greater London is seeking a Full Stack Engineer to own key areas of a client-facing web application within an AI-first engineering environment. You will work in cross-functional teams and contribute across the software development lifecycle to deliver scalable, high-performance features.The role emphasizes React, APIs (GraphQL), microservices,...

Acturis in the United Kingdom is seeking recent graduates to join our fast-growing team. You'll develop and enhance Acturis' web platform using C#, ASP.NET, ASP.NET MVC and modern JavaScript frameworks to build rich front-end experiences.We offer mentorship from day one, a clear progression path, formal performance reviews, and opportunities to lead projects...

Ki Insurance is seeking a Full‑stack Engineer to build robust, scalable software for web‑based applications and enhance the Ki platform. You will design, implement and maintain APIs, collaborate with Product and UX, and drive quality through automated tests and code reviews.The role requires mid‑senior level experience across a modern web stack, with...

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...

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...

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,...

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...

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.You can get further details about the nature of this opening, and what is expected from applicants, by reading...

About Nyxium Nyxium is a London-based deep tech company backed by top-tier investors. We are building an agentic AI and geospatial intelligence platform that supports siting, permitting, impact assessment, and decision-making for complex infrastructure projects, including energy systems, data centers, and other critical infrastructure. Location London Right...

**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...

Senior Software Engineer / Full Stack Developer (Node TypeScript React) London / WFH to £95kAre you a senior Software Engineer looking for a genuine Greenfield opportunity where you'll shape architecture from day one?You could be joining a growing financial services business as they build a brand new product that will transform how financial advisers work....

A leading financial technology firm in Greater London is seeking a Full Stack Software Developer to create robust end-to-end solutions. The candidate should have experience in Angular or similar frameworks, alongside backend technologies like C#. Responsibilities include building high-quality applications, collaborating with business teams, and ensuring...

Full Stack Software Developer, Client Solutions We are seeking a talented Full-Stack Developer with strong experience in modern web technologies, ideally with deep expertise in Angular or a similar front-end framework, and solid capability across backend technologies. The ideal candidate is enthusiastic, collaborative and delivery-focused, with a strong...

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...

LaraBench is seeking a Mid-Level Full Stack Developer for its Borehamwood office. You will own features from development through deployment and contribute to business-critical platforms supporting dashboards, reporting and partner journeys.You will work with Laravel backend and Vue frontend, handling 3–5 years of experience, REST APIs and data queries....

Job DescriptionTitle: Junior Web Developer Date Posted: 11/12/2018 Agency: Ratio RecruitmentLocation: London Role/ResponsibilitiesWe are seeking a Junior Web Developer (working with HMTL, CSS, JavaScript, PHP) for an award-winning marketing agency based in Central London. This is a brilliant opportunity to work within a top marketing agency. You will be...

Full Stack .NET DeveloperARCA is looking to speak with experienced Full Stack .NET Developers to support a major digital programme.We are looking for strong software engineers with a combination of Microsoft backend development, React frontend experience and hands‑on Azure knowledge.Key experienceEssential experience includes:C#.NETReactMicrosoft...

Full Stack Python Developer | 12-Month Contract | London | Hybrid A 12-month contract opportunity for a Full Stack Python Developer to work on enterprise applications within a complex technology environment. The role combines backend engineering, front-end development, database management and Linux automation, with a strong focus on building scalable and...

J.P. Morgan is seeking a Software Engineer III in London to own end-to-end delivery of secure, full-stack features across microservices architectures.You will design, implement, test, and operate production-grade software, leveraging Kafka, Spring Boot, and CI/CD pipelines while driving performance, resiliency, and automation for scalable financial...