Software Senior Engineer United Kingdom Jobs (Hybrid work)

Senior Software Engineer sought to shape the architecture and scalability of a cutting-edge AI-powered platform for global enterprise clients. You will own key components from design to deployment, leveraging Python, TypeScript, and AWS/GCP. This London-based role offers genuine influence over te...

Senior/Lead Software Engineer (Python, Django) sought for a 12-month contract. Lead system design and delivery using Python and Django within an Agile team, adhering to GDS standards. Requires 5+ years’ experience, deep Python/Django expertise, and strong architecture skills. Hybrid role in Cardi...

Senior Software Engineer sought by a global exchange operator to join their London-based web team. You will build and maintain high-traffic, mission-critical systems for European equities venues. Requires 5+ years of full-stack experience with Python, JavaScript, and Django. This role offers the ...

Senior Virtual Software Modeling Engineer at AMD in Cambridge, UK. Develop high-performance C++ functional models simulating AMD’s next-generation SoCs. Requires expertise in C/C++, x86/ARM/GPU architecture, and system-level debugging. Join a critical, high-impact team enabling pre-silicon firmwa...

Senior Python Software Engineer sought to support R&D tooling, CI/CD pipelines, and internal systems in Bristol. Requires 8+ years commercial Python experience across Linux/Windows, plus GitLab, Agile, and GUI development skills. Key responsibilities include building automated pipelines, ETL proc...

Senior Software Engineer, AI – London. Drive high-impact AI initiatives, designing production-ready generative AI platforms and scalable enterprise solutions for global markets. Requires 7+ years’ experience, advanced Python, RAG architectures, LangChain, and cloud expertise (AWS/Azure). Build tr...

Senior Software Engineer sought to design and scale critical payment infrastructure for a leading global fintech. You will build high-volume, multi-currency transaction systems using distributed systems and APIs. This role demands deep backend expertise in fintech or banking, with a focus on clea...

Senior Software Engineer, CalcGraphs – Vice President at Citi in London. Design and build the next-generation distributed calculation engine for the XiP platform. Requires deep Java expertise, Spring/Spring Boot, RESTful APIs, and large-scale system experience. Lead strategic improvements, coach ...

Senior Embedded Software Engineer sought by Pod, a leading UK EV charging provider, to design and deliver embedded software for IoT-connected hardware. You will own features end-to-end, integrate Thread, Matter, and Wi-Fi, and mentor junior engineers. Required experience in embedded systems and C...

Senior Software Engineer, Ad Auctions – Cambridge, UK. Join Roku to lead the design and evolution of real-time ad auction systems powering CTV advertising at massive scale. You will build low-latency, highly reliable distributed services using Java, microservices, and cloud platforms (AWS/GCP). T...

Join Roku as a Senior Software Engineer, Live in Cambridge, UK. Develop core features for the Roku Channel app and OS using TypeScript and modern UI frameworks. Collaborate with cross-functional teams to build and test streaming solutions. Enjoy benefits like mental health support, retirement opt...

MOD DV Cleared Senior Software Engineer sought for a 6-month contract in Portsmouth (hybrid, 3 days onsite). You will lead legacy modernisation and complex system evolution using Python and C/C++. Requires strong debugging, refactoring, and root cause analysis skills. Earn £750-£800/day (Inside I...

Senior Software Engineer, Ad Auctions – Manchester, UK. Lead the design of real-time, large-scale distributed systems optimizing yield and revenue for Roku’s CTV platform. Requires 5+ years in cloud-based microservices (Java, Docker, Kubernetes) and deep experience with AWS/GCP. Drive auction log...

Senior Vice President, Senior Software Engineer (SVP) sought for a London-based STIRT Technology leadership role. This hands-on position demands deep expertise in capital markets, low-latency systems, and FX/Rates derivatives. You will drive strategic architecture, manage a global team, and partn...

Senior Software Engineer sought by a fast-growing fintech in London to build scalable, secure systems processing high-volume financial data. You need 5+ years’ experience, strong Python and advanced SQL skills, plus Linux expertise. This role involves designing backend applications, optimising da...

Senior Software Engineer sought by Barclays in Glasgow to design and build scalable digital services. You will leverage front-end expertise (React, Angular, TypeScript) and back-end skills (Java, Spring Boot, REST APIs) to drive innovation. Experience with microservices, event-driven architecture...

Senior Software Engineer (AVP) sought for Margin Technology in London. Join a global team building high-quality solutions using Java, React, and Python. You will develop RESTful APIs with Spring, apply TDD, and work on complex business problems in a fast-paced environment. Benefits include 27 day...

Senior Software Engineer, Embedded UI – C++ at Roku in Cambridge, UK. Join the #1 TV streaming platform to develop and optimize high-performance rendering engines and UI frameworks. Requires 5+ years in C++, embedded systems, and Linux, with experience in JavaScript/TypeScript frameworks. Enjoy f...

Senior Software Engineer, Infrastructure / Efficiency / Productivity sought by Roku in Cambridge, UK. This architect-level role drives org-wide productivity by owning AI-first automation, CI/CD pipelines, and enterprise tooling. Requires deep expertise in Git, Jenkins, Docker, and build systems (...

Senior Software Engineer, Infrastructure and Efficiency role in Manchester, UK. Drive org-wide productivity by architecting AI-first automation, CI/CD pipelines, and developer tooling at scale. Requires Staff/Principal-level experience with Git, Jenkins, Docker, and build systems. Join Roku to sh...