Backend Engineer Jobs in London, UK

<h2>About CarbonChain</h2> <p>Want to work on the most pressing challenge of our generation? If you have experience building exceptional products, know how to execute at scale, and want to help build a company for the long term, we'd love to hear from you.</p> <p>CarbonChain helps the world’s biggest supply chains measure and reduce their carbon emissions, using verified primary data where possible, and robust defaults where it isn’t. We build software that turns messy, real-world operational and supplier information into decision-grade carbon and compliance insights, so teams can act: improve sourcing, meet regulations like CBAM, and deliver credible reporting to customers, investors, and regulators.</p> <p>We’re a product-led company operating in a high-stakes domain. Data quality, auditability, reliability, and trust matter as much as speed. If you enjoy building systems that customers rely on, and shipping improvements that measurably change behaviour across a network, you’ll feel at home here.</p> <h2>Our Product</h2> <p>Our platform combines real-world emissions data with our customers' supply chain information to create actionable insights. We help sustainability teams answer critical questions: Where are the emissions hotspots in our supply chain? Which suppliers should we prioritize? What's the carbon impact of switching vendors or routes?</p> <p>A major focus of what we’re building right now is supplier engagement and CBAM data management:</p> <ul> <li>enabling installations (goods producers) to prepare, manage, and share CBAM datasets through guided product carbon accounting workflows;</li> <li>improving our supplier database and connection management to support sharing across supply chains;</li> <li>and building ingestion pipelines that turn messy customer files into structured, provenance-tracked, insights-ready data.</li> </ul> <p>Beyond CBAM, our platform supports product and corporate carbon footprinting used by some of the world’s largest commodities producers and traders, helping teams move from data collection to credible reporting and decision-making</p> <h2>About the Role</h2> <p>We're looking for a Senior Backend Engineer to build robust, scalable systems that power our product. This is a high-impact individual contributor role where you'll own meaningful projects and directly influence how our engineering team works.</p> <p>You'll focus on shipping well-crafted backend systems while collaborating closely with the team to deliver features that solve real customer problems. We value engineers who take initiative, care about the details, and aren't afraid to venture beyond their primary domain when needed.</p> <h3>What You'll Do</h3> <ul> <li>Design and build backend systems that handle complex

Senior PHP, Laravel & Node Backend Engineer Remote 12-15k per month (150-180k per annum) Applicants must come from a Gambling/Casino, Crypto OR iGaming background. We’re looking for a strong senior backend engineer to join and help build highly-scalable products.  Our backend is mainly in PHP/Laravel with some Node.js micro services. You need to be exceptional in problem solving, used known design patterns and you’re highly indepen...

<p>Since August 2019, we’ve been making it easier for customers to find the right vehicle, and for automotive retailers to sell them. </p> <p>More recently, we’ve been on a journey…</p> <p>In June 2025 we were acquired by Volkswagen Financial Services UK (VWFS UK) and our mission is simple: build the right tech solutions for Volkswagen Group UK and its retailers, so they can deliver the best possible experiences to their customers. </p> <p>We’re a mix of problem-solvers, innovators, and team players who care about doing great work and making a difference. We thrive on collaboration, innovation, and a shared commitment to excellence. We deliver impactful solutions at pace that put the customer at the centre. </p> <p>If you're looking for a meaningful challenge, and want to help shape the future of automotive experiences, then read on…</p> <p> </p> <p><strong>About the role : </strong></p> <p>Join the team and play a pivotal role in building highly scalable and maintainable backend services. You'll have the opportunity to leverage and suggest the latest tools and techniques, collaborating closely with Product, Design, and Sales teams. We encourage sharing technical solutions and product ideas through code and design reviews, pair programming, and presentations, all while continuously improving our Agile processes.</p> <p> </p> <p><strong>What you’ll do:</strong></p> <p>Our culture empowers our talented developers to develop using whichever tools we need to get the job done. To face the many challenges, including brilliant customer experience, data processing,  microservice architecture and more.</p> <ul> <li>Hands on building highly scalable and maintainable backend services.</li> <li>Use appropriate tools for development and being proactive in suggesting new tools, frameworks or techniques</li> <li>Collaborate across functional teams including Product, Design and Sales</li> <li>Share technical solutions and product ideas through code and design reviews, pair programming, and presentations</li> <li>Highlight areas we can improve on as a team practising Agile processes</li> </ul> <p> </p> <p><strong>Our Tech Stack:</strong></p> <p>We use the tools we need to get the job done. We primarily use the following tools and frameworks (some have been added in the past year, and more are planned):</p> <table> <tbody> <tr> <td> <p>Python</p> </td> <td> <p>Django</p> </td> <td> <p>FastAPI</p> </td> <td> <p>AWS</p> </td> <td> <p>ElasticSearch</p> </td> </tr> <tr> &

<p>Since August 2019, we’ve been making it easier for customers to find the right vehicle, and for automotive retailers to sell them. </p> <p>More recently, we’ve been on a journey…</p> <p>In June 2025 we were acquired by Volkswagen Financial Services UK (VWFS UK) and our mission is simple: build the right tech solutions for Volkswagen Group UK and its retailers, so they can deliver the best possible experiences to their customers. </p> <p>We’re a mix of problem-solvers, innovators, and team players who care about doing great work and making a difference. We thrive on collaboration, innovation, and a shared commitment to excellence. We deliver impactful solutions at pace that put the customer at the centre. </p> <p>If you're looking for a meaningful challenge, and want to help shape the future of automotive experiences, then read on…</p> <p> </p> <p><strong>About the role : </strong></p> <p>Join the team and play a pivotal role in designing and building highly scalable and maintainable backend services. You'll have the opportunity to leverage and suggest the latest tools and techniques, collaborating closely with Product, Design, and Sales teams. We encourage sharing technical solutions and product ideas through code and design reviews, pair programming, and presentations, all while continuously improving our Agile processes.</p> <p> </p> <p><strong>What you’ll do:</strong></p> <p>Our culture empowers our talented developers to develop using whichever tools we need to get the job done. To face the many challenges, including brilliant customer experience, data processing, microservice architecture and more.</p> <ul> <li>Hands on building highly scalable and maintainable backend services</li> <li>Turn intricate business needs into robust technical designs and high-level architecture</li> <li>Use appropriate tools for development and being proactive in suggesting new tools, frameworks or techniques</li> <li>Collaborate across functional teams including Product, Design and Sales</li> <li>Share technical solutions and product ideas through code and design reviews, pair programming, and presentations</li> <li>Highlight areas we can improve on as a team practising Agile processes</li> <li>Offer expert technical leadership and support while mentoring our developing engineering talent</li> </ul> <p> </p> <p><strong>Our Tech Stack:</strong></p> <p>We use the tools we need to get the job done. We primarily use the following tools and frameworks (some have been added in the past year, and more are planned):</p> <table> <tbody> <tr> <td> <p>Python</p> </td&

As a Backend Engineer, you own the inference and orchestration layer that powers every AI interaction in the product. Your work sits between models and users, where latency, correctness, reliability, and cost directly impact real-world experience. You will build and operate production systems that turn model capability into fast, stable, observable APIs used across mobile and desktop clients. Focus Build and operate backend systems that serve AI...

Senior Lead Software Engineer- Backend Engineer - Chase UK 210591504 T10:26:14+00:00 London Software Engineering Full time At JP Morgan Chase, we understand that customers seek exceptional value and a seamless experience from a trusted financial institution. That's why we launched Chase UK to transform digital banking with intuitive and enjoyable customer journeys. With a strong foundation of trust established by millions of customers in the US,...

Software Engineer III - Backend Engineering - Java/Kotlin 210588623 T15:57:16+00:00 London Software Engineering Full time Out of the successful launch of Chase in 2021, we're a new team, with a new mission. We're creating products that solve real world problems and put customers at the center - all in an environment that nurtures skills and helps you realize your potential. Our team is key to our success. We're people-first. We value collaborati...

Lead Backend Developer (Laravel) London (Hybrid: 1 day per week ideally, flexibility for every other week) 80,000 - 90,000 + Strong Progression Route + Equity Are you a senior backend engineer who wants full ownership of a complex Laravel platform, working within a small team where you can directly shape the architecture, standards, and future direction of the product, with a genuine path into senior technical leadership? You will be joining an ...