Software Senior Engineer United Kingdom Jobs

Join a greenfield AI startup in London redefining innovation discovery and protection. As a Senior Software Engineer, you’ll build production systems from scratch using Java, TypeScript, or Python, integrate with LLMs, and collaborate directly with founders. No legacy code or bureaucracy—just fas...

Senior Software Engineer (AVP) sought for Citi’s Margin Technology team in London. You will build high-impact financial systems using Java, React, and Python, with expertise in RESTful APIs, Spring, and TDD. Ideal candidates have investment banking experience and knowledge of AWS, Kafka, or Kuber...

Senior Software Engineer - Margin Technology at Citi in Belfast. Build high-impact financial systems using Java, React, and Python, with RESTful APIs and TDD. Join a global team solving complex problems at massive scale. Enjoy 27 days leave, bonus, private medical, and hybrid work.

Senior Embedded Software Engineer sought to architect next-gen motion control systems for robotics and industrial automation. This role demands strong C/C++, ARM, and RTOS/bare metal expertise to optimize real-time algorithms. Based in Gloucestershire, you'll join a global R&D team solving comple...

AMD seeks a Senior Software Development Engineer in Cambridge, UK to design Linux network device drivers for 800G+ SmartNIC adapters. You will write high-quality C code, lead complex driver development, and submit changes to the upstream Linux kernel. Requires 5+ years of experience, proven Linux...

Senior Software Engineer sought to design and deliver scalable micro frontend architectures using React, TypeScript, and NestJS. This UK-based role focuses on building high-performing, secure applications with a DevSecOps mindset. You will mentor engineers, drive CI/CD improvements, and shape tec...

Senior Software Engineer sought in Belfast to build high-quality, scalable applications impacting global users. You will drive technical decisions, mentor junior developers, and apply best practices in security and performance. Ideal for experienced engineers proficient in full-stack development,...

Senior Software Engineer sought to architect Roku’s next-gen observability platform in Cambridge, UK. You will lead multi-cloud infrastructure, scaling metrics, logs, and traces across thousands of services. Requires deep Golang, Kubernetes, and Prometheus expertise, plus experience with Istio an...

Join a stable, innovative engineering leader in East Sussex as a Senior Embedded Software Engineer. You will design and develop embedded software for advanced electronic systems, covering the full development lifecycle. The role requires strong embedded C/C++ experience, Agile methodologies, and ...

Shape the future of technology as a Senior Software Engineer in Central London. You will explore emerging tech, lead rapid prototyping, and develop secure, cloud-native solutions for unique engineering challenges. This role requires DV security clearance and offers a strong pension, dedicated dev...

Join Confluent as a Senior Software Engineer in the UK. Design and build Golang infrastructure services on our cloud-native, Kafka-based PaaS platform. We seek experts in cloud infrastructure, distributed systems, and Go/Python/C++. Enjoy a remote-first culture, equity, and robust benefits.

Join Confluent as a Senior Software Engineer II to build our leading cloud-native PaaS for streaming data. You'll design and maintain Golang infrastructure services on Kubernetes within a remote-first UK team. We seek 6+ years in cloud infrastructure, distributed systems, and proficiency in Go, P...

Join Citi in London as a Senior Software Engineer and engineer the future of global FX trading systems. You will leverage your low-latency development expertise to build, renovate, and replace critical platforms. This hands-on role involves direct collaboration with trading teams and offers a com...

Join a collaborative team in Derbyshire as a Senior Embedded Software Engineer. Develop real-time embedded C/C++ systems for ARM Cortex-M (STM32) using FreeRTOS. Work on safety-critical industrial applications with modern tools and protocols like Modbus and CAN.

Join a leading IT consultancy as a Senior C#.Net Software Engineer. This remote UK role involves designing scalable cloud solutions on Azure and influencing technical direction. You will build secure applications, optimize CI/CD pipelines, and drive adoption of modern practices, including AI codi...

Join Retail Insight as a Senior Full Stack Engineer in Surrey/London. Design and build scalable analytics platforms using .NET Core, React, and modern databases. Enjoy a hybrid model, 25+ days leave, and strong career development in a collaborative team.

Join AMD's ROCm team as a Senior Software Engineer to shape the core HIP runtime. You'll design and optimize this key GPU programming environment in modern C++, targeting AI and HPC workloads. This UK-based role requires deep expertise in GPU computing models and low-level systems programming.

Lead a major engineering transformation in London, moving from manual to AI-augmented SDLC. We seek a hands-on Senior Software Engineer with strong .NET, React, and CI/CD expertise. You'll embed AI tools like Claude, automate workflows, and upskill the team. Drive real change in a modern, automat...

Join Citi's new GenAI Security team in London as a Senior Software Engineer. Design and build a secure platform to protect AI applications from adversarial attacks using Python/Go. Enjoy a competitive package including bonus, private healthcare, and 27 days annual leave.

Join Roku in Cambridge as a Senior Software Engineer for Regional TV. Develop core software in C++ for European and Australian TV platforms, collaborating with SOC vendors and supporting broadcast certifications. This role offers a chance to grow within a complex embedded systems environment, wit...