176 to 200 of 298 Senior Systems Engineer Jobs in the UK

Morson Group is seeking a Senior Software Engineer with current DV Security Clearance to join a government project based in Milton Keynes. The role involves delivering secure software solutions and working within a multidisciplinary team on monitoring, analytics and automation capabilities. The position requires solid experience ...

MBDA UK in Stevenage is seeking a Senior Software Engineer to design and develop test equipment software for leading missile systems. The role emphasizes hands-on software engineering, collaboration with hardware and systems teams, and delivery within a modern DevOps environment. The successful candidate will have strong C/C++ skills, experience with automation ...

Capsa in London is seeking a Senior AI Engineer to build the AI systems at the heart of a platform used by leading private equity firms. You will design, ship, and improve agents that research companies, analyse documents, and cite every claim, owning the harness ...

Senior UX Engineer to bridge design and frontend development, delivering accessible, high-performance experiences. You will lead prototyping, champion design systems, and mentor teammates in UI engineering best practices. Responsibilities include translating designs into production-grade code using React/Next.js, driving UX discovery sessions ...

Group seeks an experienced Senior System Admin to join a dynamic managed IT services team. This hands-on role focuses on Level 2/3 support across Microsoft 365, AD, Exchange Online, and related technologies for a global client base, including London, New York, Hong Kong and Singapore. ...

Portfolio Credit Control is seeking a Senior Software Engineer to own the application and integration layer for a new generation of AI-powered products. The role spans backend, API design, MCP integration and frontend development with React and TypeScript. You will design scalable REST/GraphQL ...

Paddle is seeking an entrepreneurial and technically strong Senior AI Engineer to join our Data & AI team and work with our Go-To-Market organisation. This is a builder's role, end to end, where … move from ambiguous business challenges to technical design, a working prototype, and then a production‐ready solution. You’ll design AI-powered systems for account segmentation and prioritisation, deploy agentic workflows for prospect research and CRM hygiene, and own the full lifecycle from #J-18808-Ljbffr ...

AtkinsRéalis is seeking a Senior ICT Engineer to join the ICT Passive Infrastructure team on UK projects. You will design passive networks and building services, create AutoCAD designs, write technical documents and specifications, and mentor junior staff. The role may require travel, occasional overseas work ...

financial services company in Greater London is seeking a Senior AI Engineer to design and deliver AI systems integral to their business processes. This hands-on role involves building production-grade solutions utilizing LLMs and agentic systems, contributing significantly to the technical direction … architecture. Applicants should have proven experience in delivering AI systems end-to-end and a strong grounding in software engineering principles. The company offers a range of employee perks, including a generous holiday policy and private medical insurance. #J-18808-Ljbffr ...

GCHQ is seeking a Senior Software Engineer to design and deliver mission-critical software, shaping architecture and best practices. You will contribute across the full stack, promote automation, and drive high-quality outcomes in a security-focused environment. The role requires hands-on leadership, experience with ...

GCHQ is seeking a Senior Software Engineer to design and deliver mission-critical software, shaping architecture and best practices. You will contribute across the full stack, promote automation, and drive high-quality outcomes in a security-focused environment. The role requires hands-on leadership, experience with ...

Are you looking for an exciting new opportunity? Join a global technology and digital transformation provider delivering data, technology, and IT solutions across more than 50 countries. The organisation supports complex IT, business, and mission ...

National Physical Laboratory in Birmingham is seeking a Senior Software Engineer to lead the design and architecture of systems that support security testing. This hands-on role requires expertise that directly impacts national security by ensuring the delivery of secure software. Ideal candidates will possess ...

Chubb Ltd. is seeking a Senior AI Engineer to lead the design, development, and deployment … generative AI solutions across underwriting, claims, and customer service. You will work at the intersection of software engineering and applied AI, delivering production-grade systems on Azure and Databricks. You will mentor engineers, influence technical direction, and drive AI features that address real insurance business problems. #J-18808-Ljbffr ...

globe. It offers spot trading, margin, futures, staking, and OTC services, with products built for both individual investors and institutional clients. The Agent Systems team is a 01 engineering group building internal AI-powered agents that interact directly with company systems. The mandate is to dramatically increase internal speed … execution through automation, intelligent inference, and workflow orchestration. This team operates at the intersection of AI, backend systems, and applied product engineering. The work is pragmatic and fast-moving — prototypes are expected, but the bar for production reliability remains high. Engineers on this team move fluidly between experimentation ...

Justworks UK is seeking a Senior Software Engineer to join a small, autonomous team building an AI-native agent platform that reads operational knowledge and executes tasks end-to-end. You will own large segments of the technology stack and ship production-ready systems. You will ...

Kharon, a leader in global security intelligence, seeks a London-based Senior AI Engineer for Agentic Systems. The role focuses on building autonomous agents, integrating diverse data sources, and deploying scalable workflows. You will contribute to research-driven product development and operationalize AI capabilities in production ...

Indra invites a Senior Software Engineer to join the Air Traffic Management team, developing safety‐critical distributed systems used in operational ATC environments. The role blends high‐performance software with AI‐assisted development tools to boost productivity, quality, and lifecycle automation. The ideal candidate ...

Chubb is seeking a Senior AI Engineer to design, develop and deploy … generative AI solutions across underwriting, claims, and customer service. The role sits at the intersection of software engineering and applied AI, building production-ready systems on our Azure and Databricks platform. You will mentor engineers, shape technical direction, and drive architecture decisions to scale AI capabilities across the insurance ...

Hamilton Barnes Associates Limited is seeking a senior infrastructure engineer to lead the design, architecture, and development of distributed agents across servers, switches, and SmartNIC/DPU environments powering … modern AI infrastructure. This is a highly hands-on technical leadership role with ownership across architecture, implementation, reliability, observability, and operational excellence. A deep systems engineering background and strong Linux networking knowledge are required to drive #J-18808-Ljbffr ...

Homeprotect is seeking a Senior Software Engineer to lead technical delivery for customer-facing systems and the claims workflow. You will own complex features, make architectural decisions, and mentor teammates to raise the overall capability of the engineering group. You’ll operate across frontend ...

ExTrac is seeking a Senior ML Engineer to join its London-based Machine Learning team. You will … collaborate with software engineering and product design to design, run evaluations, and productionize optimized workflows for large-scale geopolitical analysis. You will architect agentic systems, train and evaluate domain-specific models, and translate research into practical, scalable solutions alongside domain experts. #J-18808-Ljbffr ...

Tesco is seeking a Senior Android Engineer to advance the Digital Design System (DDS) implementation for Android. You will build reusable UI components, improve tooling and documentation, and support consuming teams across Tesco’s digital estate. You’ll collaborate with design, accessibility, product engineering ...

Graphcore is seeking a hands-on Reliability Engineer to own the bring-up, validation and diagnostics of AI compute hardware across lab and data centre environments. You will diagnose failures from server blades to power, thermal and BIOS/… issues, turning complex problems into clear root cause actions and robust operating practices. This role offers visible impact, close collaboration with hardware and systems teams, and opportunities to improve documentation and hardware diagnostics. #J-18808-Ljbffr ...

CommonAI CIC in Cambridge is seeking a Senior Performance Engineer to collaborate with AI researchers and software engineers. You will instrument and collect granular metrics from inference and training jobs to build predictive models of software optimisations and hardware changes. Your work will influence hardware purchasing ...