126 to 150 of 184 Senior Systems Engineer Jobs in London

Senior Platform Engineer – Scalable, Event-Driven Systems

Location
Greater London, England, United Kingdom
Wallstreetdocs Ltd. is seeking a Senior Software Engineer-Platform Services to drive our core platform ecosystem. In this role, you will own and operate platform services, including customer and developer portals and centralized document management, while leading architectural decisions across a dual-stack of Node.js/ ...

Senior Rust Engineer - High-Performance Trading Systems

Location
Greater London, England, United Kingdom
Provn Talent Solutions Ltd is recruiting a Senior Rust Software Engineer for a leading global financial-markets firm. You will join the Core Trading Engineering team to design and build high-performance Rust applications and distributed services in Linux environments. You will collaborate with quantitative teams ...

Senior CCS Engineer — Rail Signalling & Control Systems

Location
City of Westminster, England, United Kingdom
Randstad CPE London is seeking an experienced rail Control Systems or Signalling Engineer to contribute to the CCS development for HS2. The role focuses on concept design and early scheme activities, developing and challenging technical requirements while considering how control, signalling and traffic management interact with ...

Senior Digital Assets Engineer - Build Crypto Trading Systems

Location
Greater London, England, United Kingdom
Optiver is seeking a Senior Digital Assets Software Engineer in London to design and implement trading systems for cryptocurrency markets. You will work closely with traders and researchers to translate market insights into robust production solutions. Join a fast-moving environment where you’ll build ...

Senior AI Engineer - Agentic Systems & Automation

Location
Greater London, England, United Kingdom
TwinThread is seeking an AI Engineer for their Agentic AI Solutions team in Greater London. You will design, build, and deploy autonomous AI agents, enhancing operations through innovative solutions. The role requires collaboration with cross-functional partners to translate operational needs into effective multi-agent systems. A competitive ...

Senior C++ Robotics Engineer for Autonomous Systems

Location
Greater London, England, United Kingdom
sees.ai, a London-based developer of autonomous inspection tech, seeks a Senior C++ Software Engineer to evolve a real-world platform for unmanned systems. You’ll contribute across the core software stack, from flight control and autonomy to simulation and operator interfaces, with a fast feedback ...

Senior AI Engineer — Reasoning & Decision Systems

Location
Greater London, England, United Kingdom
industry and regulatory environments Building and maintaining exceptional customer relationships through team excellence Zero-to-one function building — creating product delivery frameworks, engineering performance systems, and product delivery processes from the ground up Building and leveraging AI technology to enhance product features and development workflows We build with technology … they deliver measurable value. Work closely with engineers, domain experts and product colleagues to shape technical direction and delivery. Build secure, scalable and maintainable systems for Kinsworth’s financial intelligence platform. Location We describe ourselves as “remote but not remote only”. We believe work can be done anywhere ...

Senior Lead Software Engineer — AI/ML, Cloud & Data Systems

Location
Greater London, England, United Kingdom
JPMorgan Chase is seeking a Senior Lead Software Engineer within the Markets Research Technology team. Lead agile, design and deliver secure, scalable technology products with a focus on Cloud-native data, backend, and AIML engineering to production scale. You will work on challenging AI/ ...

Senior Full Stack Engineer — Architect AI‐Driven Systems

Location
Greater London, England, United Kingdom
Atos SE is seeking a Senior Full Stack Engineer to design and deliver complex software across multiple tech stacks. You will collaborate with clients and internal stakeholders, guiding hands-on development while shaping architecture and delivery. The role sits within our Gen AI practice, contributing ...

Senior Staff Engineer - Scalable AI Systems & Equity

Location
Greater London, England, United Kingdom
Staff Software Engineer to tackle high-level technical challenges and enhance system scalability. You will resolve technical issues, design distributed systems, and leverage AI tools to improve workflows. Ideal candidates should have experience with production systems at scale, debugging skills, and the ability to work ...

Senior Embedded C++ Engineer – Real-Time Defense Systems

Location
Greater London, England, United Kingdom
ALTEN LTD - UK is seeking a Senior Embedded Software … Engineer to develop mission-critical embedded software in London. The role demands expertise in embedded C++, with a focus on real-time systems and software robustness. Candidates should have over 8 years of experience in regulated environments and must be able to obtain SC clearance. The position ...

Senior Java Engineer - Trading Systems & Execution

Location
Greater London, England, United Kingdom
Isamcapitalmarkets is seeking a talented Java Developer to join the Helix Technology team in Greater London. The role involves managing the ISAM Helix Trading System, focusing on trade execution and collaboration with brokers to refine ...

Senior Software Engineer - Distributed Systems at Scale

Location
Greater London, England, United Kingdom
Laotop recherche un développeur logiciel expérimenté pour concevoir et maintenir des systèmes distribués chez AWS. Vous travaillerez sur des architectures scalables et participerez à l'optimisation des performances et de la fiabilité. Le candidat idéal ...

Senior Data Platform Engineer (Trading Systems)

Location
Greater London, England, United Kingdom
leading Investment Manager in the UK is seeking an experienced Software Engineer for an initial 6-month role that could lead to permanent employment. The position involves working within a core engineering team to develop and enhance data and infrastructure platforms supporting systematic trading strategies. The ideal candidate ...

Senior Python & C++ Engineer for Scalable Quant Systems

Location
Greater London, England, United Kingdom
WorldQuant LLC is seeking an experienced software engineer to build scalable systems for quantitative research and portfolio production in a Linux environment. You will contribute to a multi‐year platform initiative designed to support large‐scale data processing, backtesting, and ML workflows. The role emphasizes writing production ...

Senior AI Engineer — Build Scalable AI Systems

Location
Greater London, England, United Kingdom
Burendo is seeking an experienced AI Engineer to join a pragmatic delivery team. You will contribute to the full software lifecycle across client work, internal builds, and bids, with a strong emphasis on AI layers, LLM integration, and data pipelines. You will work in cloud environments (AWS/ ...

Senior Firmware Engineer - Embedded E-Bike Systems

Location
Greenford, Scotland, United Kingdom
Firmware Engineer role at Brompton Bicycle Ltd delivers robust embedded software for Brompton Electric products, across prototype to production. You will be involved in the full lifecycle and work with cross-functional teams to ship features. Requirements include proven embedded software experience, strong C++, and familiarity with ...

London-based Senior AI Engineer: Production AI Systems

Location
Greater London, England, United Kingdom
T. Rowe Price Labs in London seeks aSenior AI Software Engineer to design and deliver production-grade AI agents within cloud-native architectures. You will own key components across the software lifecycle, mentor peers, and collaborate with product and business teams to scale AI solutions. The role emphasizes ...

Senior Backend Engineer - FinTech & Scalable Systems

Location
Greater London, England, United Kingdom
JPMorgan Chase & Co. is seeking a Software Engineer III to join a fast-growing Accelerator team in London. You will help turn smart ideas into customer-facing products, collaborating in squads focused on fintech solutions and scalable architectures. The role emphasizes secure, testable software, continuous … learning, and responsible AI usage within an enterprise-grade SDLC. You’ll work with JVM languages and modern cloud-native patterns to deliver reliable systems for real-world customers. #J-18808-Ljbffr ...

Senior Full-Stack Engineer, TS – AI & Event-Driven Systems

Location
Greater London, England, United Kingdom
Recruitment Limited is looking for a Senior Full Stack Engineer to significantly impact the development and scaling of mission-critical systems within their AI-driven legal platform. You will work in a highly technical, product-centered team to solve complex design challenges, optimizing the performance ...

Senior Mechanical Program Engineer, Data Center Systems

Location
Greater London, England, United Kingdom
Vantage Data Centers in London is seeking a Principal Mechanical Program Engineer to shape the mechanical systems and design of our digital infrastructure. You will provide technical leadership, support project engineers, and drive standardization of equipment for modular, scalable, and reliable solutions. You will lead CFD studies ...

Senior Software Engineer, Scalable Pricing Systems

Location
Greater London, England, United Kingdom
PowerToFly is seeking a skilled software developer in London to manage key services and enhance customer experiences using technologies like Java and AWS. The ideal candidate will have over 5 years of experience, a Bachelor ...

Senior C++ Engineer — Build Scalable Distributed Systems

Location
Greater London, England, United Kingdom
WorldQuant LLC in Greater London is seeking a Software Engineer to build … enhance software that supports quantitative research operations. Candidates should have a strong background in C++, Linux, and Python, with an emphasis on developing scalable systems for the firm's next phase of growth. Applicants should possess at least 5 years of experience in production-quality coding, alongside a solid ...

Senior Software Engineer - AI-Driven DX & Python Systems

Location
Greater London, England, United Kingdom
Octopus is seeking a seasoned backend engineer to embed with cross-functional teams and co-build high-impact AI features inside domain codebases. You will design internal developer tools and templates in Python to streamline how teams across … Octopus safely integrate AI into their software. You will establish guardrails, collaborate with Data, and mentor local teams, turning quick prototypes into secure, scalable systems while maintaining a pragmatic, fast-shipping mindset. #J-18808-Ljbffr ...

Senior Field Service Engineer – Complex Systems

Location
Greater London, England, United Kingdom
Schneider Electric is seeking a Specialist Senior Service Representative in the United Kingdom to diagnose complex issues, lead maintenance projects, and deliver technical consulting for customer success. You will guide field service engineers, coordinate across teams, and help optimize performance while ensuring safety and compliance. This UK-based ...