126 to 150 of 212 Senior Systems Engineer Jobs in London

ASOS is hiring a Senior AI/LLM Engineer to design and industrialise core … capabilities powering ASOS. You’ll build reusable, production-grade AI platforms that scale across the business, solving deep technical problems in models, reasoning systems, and orchestration. You’ll work on systems at real scale, partnering with Trust & Security to embed AI risk controls and driving horizontal reuse across ...

LineTen is building a data-driven last-mile network and is seeking a Senior Software Engineer to craft robust backend services and frontend integrations. … will operate in a low-ceremony, high-trust environment, owning critical components and driving long-term software quality. You will work on distributed systems with a focus on correctness, maintainability, and scalability, using AI-assisted tools responsibly while prioritizing sound design, testing, and thoughtful reviews. #J-18808-Ljbffr ...

Monzo is seeking a Senior Staff Engineer to provide hands-on engineering leadership across multiple squads in the UK, including Cardiff, London or Remote. … shape technical and product direction, lead architectural decisions, and mentor senior engineers while working with cross-functional teams to deliver scalable backend systems and features. The role offers a base salary in the £155,000–£200,000 range plus equity, visa sponsorship, relocation help, and a flexible ...

looking for a Senior Research Engineer to join our AI Research team in London. You will build the systems our research runs on and the models themselves, working as a full member of the research team rather than in support of it. The work spans … broader platform engineering. About You PhD in computer science, physics, mathematics, or a related field, or equivalent depth of experience gained through building AI systems at scale. You have built systems that made real research and taking it to production possible, in a team where engineering was treated ...

CoreWeave is seeking a Senior Software Engineer to help build and scale our AI platform. You will write production-grade Python, contribute to a distributed architecture, and enable rapid deployment of AI products and MCP server integrations. You’ll own backend services, drive reliability, and collaborate ...

seeking a Senior Software Engineer for its London AI Engineering team. You will design, build, and harden AI systems used across the firm, taking ideas from conception to enterprise-scale deployment. This senior, hands-on role offers ownership of major deliverables, promotion ...

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 ...

StandardX is seeking a Senior Electrical Engineer in London to lead the electrical design, build, and integration for a groundbreaking isotope facility. You will own the electrical infrastructure, HV/LV distribution, protection, earthing, and interface with controls, RF and mechanical teams. The role blends hands ...

Capsa in London is seeking a Senior Fullstack Engineer to own the backend powering an AI platform used by leading PE firms. You will design and build scalable services, implement agentic workflows, document ingestion, search, and APIs, and take … features from idea to production. You will work across the stack with startup veterans, receive meaningful equity, and have the opportunity to ship impactful systems at pace in a high-performance environment. #J-18808-Ljbffr ...

public sector around the world. As a Senior Applied AI Engineer, you'll own the AI behaviour of production systems our clients depend on, including the agents, evaluations, and backend integration behind them. You'll lead delivery for your workstream, mentor engineers ...

London, UK About Graphcore Graphcore is one of the world’s leading innovators in Artificial Intelligence compute. It is developing hardware, software and systems infrastructure that will unlock the next generation of AI breakthroughs and power the widespread adoption of AI solutions across every industry. As part … from diverse backgrounds and bring a broad range of skills and perspectives. A melting pot of AI research specialists, silicon designers, software engineers and systems architects, Graphcore enjoys a culture of continuous learning and constant innovation. Job Summary As a Senior Machine Learning Engineer ...

Machine Learning Engineer to build production-grade AI agents and scalable ML-powered services. You will design, implement, and monitor agentic systems that automate complex underwriting decisions, collaborating with data scientists and software engineers in a fast-paced Data & AI unit. The role emphasizes robust architecture ...

hiring a Senior Software Engineer (AI & ML) to build production-ready AI agents and orchestrate multi-step underwriting workflows. You’ll design robust runtimes, data services, and guardrails, working closely with ML engineers to ensure reliability, observability, and scalable cloud infrastructure. You’ll contribute ...

sees.ai is hiring a Senior C++ Software Engineer in London. You will work across our autonomous systems software stack, tackling challenging problems and shaping architecture while delivering production-quality code that runs in real-world environments. You will join a collaborative team spanning software, robotics ...

Spyrosoft Ltd in London is seeking a Senior Hardware Engineer to provide specialist technical support and maintain critical post‐production and broadcast infrastructure. The role covers Avid Nexis storage, Pro Tools suites, DaVinci Resolve servers, Swift CG+ graphics, Windows/Mac workstations, and networking equipment. ...

JPMorgan Chase in London is seeking a Software Engineer III to design, build, and deploy scalable AI/ML solutions within the International Consumer Bank MLOps team. You will collaborate with data scientists, PMs, and engineers to translate business initiatives into robust, customer-focused systems. You will deploy ...

Perk Inc. is seeking a Senior … Engineer to design and run AI-powered outbound workflows. You will build Clay tables, AI enrichment pipelines, and signal-based prospecting systems integrated with Salesforce and Outreach. The role blends data engineering with revenue operations to advance Perk's GTM engine. You'll work with Sales leadership ...

Global is seeking a Senior Software Engineer II to design, build and operate secure, scalable software used across our global digital platforms. In this senior individual contributor role, you will take ownership of complex technical challenges, contribute to technical decision-making, and work closely ...

made. The ideal candidate will have a passion for technology and thrive in a fast-paced environment. Our team is developing tools and systems using modern software techniques. We need software engineers who excel at building robust software systems to solve challenging problems at scale. The ideal candidate … complex software with modern C++ over embedded systems. Implement, deliver and refine Arene SDK software components for users to interact seamlessly with the vehicle systems Design and implement abstraction layers to enable hardware-agnostic software platforms using modern C++ concepts Collaborate with global teams to accelerate and improve Arene ...

UnderwriteMe is seeking a Senior Machine Learning Engineer to design, build, and deploy advanced LLM-based and agentic systems for medical records and application data. You will own evals, guardrails, and end-to-end production readiness in a fast-paced, cross-functional environment. You will ...

Warner Bros. Discovery is seeking a Senior DevOps Engineer to shape the technical backbone of Rocksteady's Unreal Engine 5 project. You will ensure fast, reliable pipelines … tooling for developers across the studio, collaborating with engineers and content creators in a hybrid London-based role. The position emphasizes owning automation, build systems, and scalable infrastructure, with opportunities to advance at the intersection of engine programming and developer infrastructure. #J-18808-Ljbffr ...

more Matrix Teams. A matrix team is defined as a technical steering committee focused on the architecture, operational health, management, and monitoring of like systems grouped by technical function. The ideal candidate will have a general background in IT, Finance, Economics, or Tax, with an in-depth understanding … objectives, and includes managing and measuring the effectiveness of work. What You’ll Do Conceive, design, and oversee the implementation of enterprise‐wide systems development Research and recommend software products to address business requirements Ensure that the business and technical architecture of delivered solutions match customer requirements Handle ...

Faculty is seeking a Senior Machine Learning Engineer to lead development and deployment of production-grade AI systems for diverse clients. You’ll architect scalable ML software, ensure ethical standards, and bridge research with real-world impact while guiding cross-functional teams. You’ll mentor ...

seeking an IT Support Specialist III to join our hybrid London-based team. You will provide expert helpdesk and systems administration, tackling complex IT issues for a global workforce and contributing to the technology strategy. The role includes two mandatory in-office days per week at Cannon Green, London ...