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Backend C# .NET Developer working onsite in London, building robust .NET services and collaborating with database teams at a global sports trading firm.
Senior hands-on Backend Engineer building scalable backend services in C#/.NET and ASP.NET with database systems for a global sports trading business, working onsite in London Monday–Friday.
Senior Backend Engineer owning high-performance Java/C++ backend systems, APIs, and microservices in Linux environments, with technical leadership, mentoring, and DevSecOps responsibilities.
Backend Software Engineer on a greenfield cybersecurity project in Cambridge, primarily coding in Python with exposure to Rust and TypeScript alongside AI-based security technologies.
Senior Backend Engineer on the Payments team at Depop, designing robust backend solutions for a marketplace serving millions of daily users with Scala, Python, PostgreSQL, DynamoDB, AWS, and Kubernetes.
Build and maintain high-throughput .NET backend systems for a gambling platform, including real-time odds feeds, KYC/casino integrations, and Azure-hosted infrastructure, with optional full-stack work in TypeScript/React Native.
Builds high-performance backend services in Node.js/TypeScript, focusing on scalable distributed systems and event-driven architectures to optimize APIs and solve performance challenges.
Java Software Engineer modernizing a high-scale consumer tech platform, redesigning a core API for scalability and third-party integrations using Java, distributed systems, and cloud infrastructure.
Monzo is seeking a Principal Engineer to lead architectural direction for the company’s most complex systems. You will partner with engineering and product leaders to shape the technical and product roadmap, staying…
Onyx-Conseil is seeking a Fullstack Backend Developer with C# .NET to drive the ongoing development of an eCommerce site and internal applications for a travel company. You will lead the eCommerce tech direction and…
Senior contract backend engineer building Java/Kotlin services and APIs with Spring Boot on Kubernetes, owning integration flows and leading design discussions for a new team.
Designs and optimizes high-performance backend systems for a gaming platform, focusing on scalable services and cross-functional collaboration to deliver robust APIs.
Senior backend engineer building and maintaining systems for the FollowScores app, delivering data to iOS/Android via WebSocket and REST APIs using Go, Redis, and GCP in a hybrid role in Manchester.
Backend Developer building and maintaining Node.js/TypeScript applications for a global data-centre operator, collaborating with frontend developers to deliver robust backend services.
Java Backend Engineer for a hybrid role in London, contributing to the design, testing, and delivery of next-generation cloud-enabled financial applications using Java, Spring Boot, and cloud architectures in a regulated financial services setting.
Build scalable backend APIs for pricing/revenue systems in a fintech product company, owning tech solutions that drive business growth and global scale.
Build a high-throughput, low-latency Market Data platform using C#/.NET and Java, with API development, SQL, and AWS cloud deployments in an Agile London team.
Senior Backend Engineer building complex, scalable C#/.NET systems for a FinTech company, working hybrid (3 days from home) from Reigate.
On seeks a Senior Backend Engineer to design, build, deploy, test and operate our digital services. Based in London, you will collaborate with cross-functional teams to scale our online business, including e-commerce…
Requesty is seeking an experienced backend developer to join their dynamic team in London. You will contribute to building a scalable and secure platform for LLM integrations, collaborating closely with founders to…
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