Overview In this role you will build and optimize low-latency trading services in Rust, including OMS, gateways, and risk tools, for Blockchain.com's Institutional team in London. You will advance high-throughput, secure systems that power...Read More>>.

Overview As a Senior Back-End Developer in a fast-growing fintech, you will own the design and delivery of C#/.NET microservices that power payment and FX services. You’ll shape architecture, engineering standards, and CI/CD practices whi...Read More>>.

Overview In this role you design, build, and maintain scalable backend services that power Wise’s public APIs used by banks, software companies, and enterprises. You will set API standards, develop developer-friendly tools, and guide best...Read More>>.

Overview In this role you contribute to a cross‑functional engineering team building a scalable, market‑leading research platform. You will own and improve services, collaborate with product and design to solve real customer problems, a...Read More>>.

About the job Mercor connects elite creative and technical talent with leading AI research labs. Headquartered in San Francisco, our investors include Benchmark, General Catalyst...Read More>>.

Palantir is seeking Backend Software Engineers to build scalable software that powers data-driven decisions for public and private sector clients. You will contribute across the product lifecycle, collaborating with technical and non-technical tea...Read More>>.

Senior/Staff Backend Developer — Scroll Home (Hybrid, London) Scroll Home is a video-first property discovery app launching in London over the next two months. Full-screen walkthroughs, a personalised feed, one-tap enquiries, in-app...Read More>>.

Explore Group invites a Lead Python Engineer to drive backend architecture for a cloud-native FinTech platform. You will own key components, ensure performance and security, and mentor engineers as the system scales.The role demands 6+ year...Read More>>.

Marks & Spencer is seeking a Staff Software Engineer to lead design and delivery of the order management and promising capabilities for the Promising platform. You will build scalable, reliable services and drive modernisation to enable seamless c...Read More>>.

Fanatics Betting & Gaming in Leeds seeks a Staff Software Engineer to build high-throughput backend systems that process market data and power live sportsbook experiences. You will lead through code, architecture, and technical decisions, collabor...Read More>>.

Hard Rock Digital is seeking a Senior Backend Engineer to join the Quantitative Sports team and develop advanced analytical and relational database solutions. The role requires a solid engineering background, advanced Python proficiency, and exper...Read More>>.

Back-End Engineer - London - Up to £115,000 Starting Base + Exceptional Bonuses/Benefits Join a high‑calibre engineering team building next‑generation, AI‑driven software. You’ll help turn AI‑generated code into robust, usab...Read More>>.

OverviewGlobal Media client now requires an experienced Backend/Platform Engineer to ensure their cloud estate and infrastructure is secure, capable and resilient throughout their modernisation programme. This role will work collaborat...Read More>>.

Playtronix is seeking a Mid / Senior Java Backend Developer to help build and maintain the backend systems and infrastructure of our gaming platform.Based in Belgrade, you will join a growing iGaming company, focusing on scalable services,...Read More>>.

Position SummaryWe are seeking an experienced New Product Introduction (NPI) Engineer to support the transfer of new electronic products from concept and prototype through qualification, production release, and manufacturing ramp-up. C...Read More>>.

JP Morgan Chase is looking for a Software Engineer III to contribute to innovative digital banking solutions in Greater London. Join a dynamic team dedicated to delivering top-tier banking experiences through cloud-native architecture.The r...Read More>>.

Orbital is seeking a Backend Engineer to design, build and operate the core systems powering Curie. You will work across the full backend stack—APIs, data pipelines, graph databases, event-driven architectures and the infrastructure that connect...Read More>>.

EngineersOfAI is seeking an enthusiastic Engineering Manager - Content API to lead a high-performing, remote-first web development team based in Europe. This role focuses on enhancing the management capabilities of the platform for content reusabi...Read More>>.

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....Read More>>.

Eequ in Brighton is seeking a senior backend engineer to join our senior team. You will have real ownership and high autonomy in a role focused on building the backend platform that powers a marketplace for thousands of families.Key respons...Read More>>.

Monzo is seeking an Engineer III to join its London or UK-remote engineering teams. You will work on backend systems, primarily using Go, with AWS and GCP for production and data workloads.The role offers spread across the UK with support f...Read More>>.

Cato Networks is seeking an experienced Software Engineer to join a team focused on expanding the cloud-native platform for next-generation networking and security. You will design and build backend systems powering data-driven insights and platfo...Read More>>.

Revolut is seeking an API Product Sales Executive to help drive adoption of our payments-as-a-service offerings with enterprise clients. You will be responsible for building a network of customers, managing sales forecasts, and establishing truste...Read More>>.

TXP is seeking an experienced Manual Software Tester / Salesforce Tester to support a key programme on an initial 3-month contract. Based in Cheltenham, the role is predominantly office-based with Friday work from home and some onboarding flexibil...Read More>>.

develop is seeking an experienced Senior PHP Developer to join our backend engineering team in Fareham. You will help modernise core systems, scale performance and deliver new features across high-traffic products.You'll work in a cross-fun...Read More>>.

You’ll partner with the Head of Engineering, Head of Clinical Operations, Head of Product and other domain experts to create groundbreaking technology and infrastructure to power better cardiac care and heart health for thousands of memb...Read More>>.

Tecknuovo is a deliberately different digital consultancy, delivering secure, modern technology solutions while upskilling client teams to ensure zero long-term dependency. We are seeking an experienced Integration Engineer to support a...Read More>>.

Ro is seeking a Senior Software Engineer to design, build, and maintain scalable backend services, focused on reliability and security. You will shape Ro’s technical architecture and define the roadmap for critical platforms, collaborating with...Read More>>.

Anthropic is seeking experienced backend and distributed systems engineers for the Agentic Systems team within the Platform organization. You will own the end-to-end system including API design, stateful sessions, sandbox orchestration, and observ...Read More>>.

IBM Software is seeking a Backend Developer for Confluent platform controls. You will design, build, and operate backend services in a cloud-native environment, collaborating with engineers, product managers, and designers to ship features end-to-...Read More>>.

Primer is the unified infrastructure for global payments, enabling finance and payments teams to reduce complexity and capture more revenue from a single platform. We operate fully remote with global distribution and offer competitive options and...Read More>>.

Vallum Associates in the United Kingdom is seeking a software engineer to design and build scalable applications using Python and React, and to craft robust RESTful APIs with Python/FastAPI.You'll collaborate with architects, stakeholders a...Read More>>.

Addition Solutions is seeking an experienced Backend Developer (Java/Spring Boot) for a fully remote contract. The role focuses on building scalable backend services, REST APIs and microservices in a high-volume environment. You will work with Jav...Read More>>.

Xe is rebuilding the platform layer behind cross-border payments and seeks a mid-level back-end engineer to own problems end-to-end—from API design to production reliability and launch. You will work in a small team with direct access to product...Read More>>.

Regal Rexnord seeks an experienced Manager Export Compliance EMEA & India to lead export controls, sanctions compliance, and licensing across Europe, the Middle East, Africa and India. You will serve as the regional SME, partnering with Engineerin...Read More>>.

Galaxy is seeking a VP, Senior Backend Developer to lead backend engineering for blockchain infrastructure in London. You will own end-to-end backend design, APIs, Ethereum data pipelines, and staking infrastructure, while shaping architecture and...Read More>>.

Midnite is a next-generation sports betting and gaming platform redefining how players engage with competitive sports. We’re a high‑performance, fast‑moving team that values ownership and rapid iteration.The Engineering Lead will prov...Read More>>.

Carousel Consultancy is seeking a Backend Engineer to join a rapid-growth FinTech AI platform in London. Hybrid or UK/European remote working is available, with an annual salary up to £100k plus equity. You will work on scalable backend services...Read More>>.

Triptease is hiring for a software engineer to join autonomous squads building and evolving the Triptease stack. You will contribute across frontend and backend, with a lean towards backend, delivering modular, test-driven code in a fast-paced, co...Read More>>.

Luna Innovations is seeking a Senior Software Backend Developer in Elstree, London. You will design, develop, and scale backend systems powering our sensing and monitoring platform, handling live data from distributed sensing systems in challengin...Read More>>.

Lloyds Banking Group is seeking a Senior Solution Architect to orchestrate complex solution architectures across the API Lab portfolio. You will shape roadmaps, align with enterprise strategy, and drive architectural consistency across numerous pr...Read More>>.

Backend Security Engineer ($30 - $100/hour) Strong backend experience in Java, Node.js, Go, Rust, Typescript, Python, C++ or similar A track record building scalable services and APIs Comfort with debugging, perfor...Read More>>.

Motorola Solutions UK Limited is seeking a Back End Developer (Temporary) to join an agile delivery team and design and develop mission-critical backend solutions using C#.NET. The role works remotely with occasional travel to Motorola offices; yo...Read More>>.

Fynity Limited is seeking a Senior Backend Developer (PHP/Laravel) to own backend delivery for complex client projects. You will architect CMS-driven solutions, integrate APIs and mentor the team, ensuring high quality and scalable systems across...Read More>>.

Emma is hiring a software developer in London to work directly with the CTO on backend infrastructure and data processing challenges. The role features a high-performance culture and ownership over your work, with an intense roadmap ahead includin...Read More>>.

Camunda is seeking a Senior Software Engineer for our Data Streaming team to build the first-class architecture for streaming process data at scale. You will influence design and deliver a durable streaming layer that decouples data access from th...Read More>>.

J.P. Morgan is seeking a Software Engineer III (Java/Python) to join the Commercial & Investment Banking Emerging Markets Team in London. You will contribute to building secure, scalable, production-ready software and participate in agile developm...Read More>>.

Falconsmartit in the United Kingdom seeks an experienced MuleSoft integration developer to design, develop and implement integrations using the MuleSoft Anypoint Platform. You will build and maintain APIs following API-led connectivity and collabo...Read More>>.

Capgemini is seeking an experienced Angular Developer to work on new product development and maintenance of existing systems. You will participate in all stages of the software development lifecycle, from design to deployment.The role invol...Read More>>.

Squarepoint Capital is seeking an hands-on Infrastructure Developer who writes production-quality code daily, focusing on infrastructure automation through API-driven integration across the stack. You will own the CMDB layer, enabling real-time tr...Read More>>.