151 to 175 of 259 Senior Systems Engineer Jobs in England

scale to millions of players. As a senior engineer, you’ll own the design and delivery of real-time AI systems, focusing on low latency, reliability, and observability, while collaborating with product managers and data analysts. #J-18808-Ljbffr ...

Motorway is seeking a Lead GenAI Engineer to set the technical standard for AI work across the GenAI Engineering function. … will build the hardest parts yourself, own the architecture, and guide senior engineers to improve the team's craft. You’ll oversee systems that balance cost, latency and reliability while ensuring safe, scalable AI features for buyers and dealers in our UK marketplace. This is a hands ...

Leidos UK & EUROPE is seeking a Senior Integration and Test Engineer to lead the design, development and maintenance of test scripts and test reporting across a flagship UK programme. The role requires expertise in both manual and automated testing within a hybrid Waterfall/Agile environment. ...

companies uncover hidden savings, validate protection, and maximise ROI from their existing security investments. The organization is currently on the lookout for a Senior Cyber Security Engineer to join a growing security function, stepping into a role with real ownership from day one. The ideal candidate … Netskope, Microsoft Purview/Defender/Sentinel, and Rapid7, while engaging directly with customers and stakeholders with minimal onboarding. Responsibilities: Act as a senior technical point of contact for customers, engaging confidently and independently from day one Design, implement, and support SASE/SSE deployments (Zscaler and/ ...

Capital Group is seeking a Senior Software Engineer to turn ambiguous problems into working AI solutions that improve investment processes and business outcomes. You will lead discovery, design the approach, write the code, and own it in production. This hands-on engineering role requires comfort ...

premium content and entertainment to millions of users in the US and around the world. What is the role? We are seeking a Senior Software Engineer with experience in building services at scale. With so many people relying on us for great movies, TV, and news ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...