26 to 50 of 92 Senior Systems Engineer Jobs in London

Senior Software Engineer – Data Systems (Hybrid London)

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Software Engineer in London, offering a hybrid work model. This role involves designing reliable services and APIs, working across backend systems, and tackling ambiguous problems effectively. The ideal candidate will have strong backend engineering experience, production debugging skills, and a solid understanding of event-driven ...

Senior DB2 z/OS Systems Engineer

Hiring Organisation
Jobleads-UK
Location
Bromley, England, United Kingdom
Bank of America is seeking a Senior DB2 z/OS Systems Programmer in Bromley, UK, to design and implement systems engineering activities, focusing on DB2 z/OS technical support and data center capabilities. The ideal candidate should have extensive experience with ...

Senior Research Engineer, ML Systems

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
genetic diversity that doesn't exist for models trained on public database sources. This enables Basecamp Research to design novel protein sequences and biological systems that can accelerate therapeutic research and development. In October 2024 we closed Series B and in January 2026 finalised pre-Series C investment from … looking for a Senior Research Engineer to join our AI Research team in London. You will work on the technology, systems and infrastructure that power our frontier research, from accelerators and distributed training pipelines to experiment frameworks and the tooling that lets a small team ...

Senior Systems Software Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Develop firmware and services for management controllers at every level: rack management, BMC, and board/device controllers (RTOS and bare metal) Build systems software for board and rack management, from early bring-up through to production deployment Implement the critical flows that keep fleets healthy: power … software teams to define reliable interfaces, validate behaviour, and debug boundary issues What we’re looking for Proven experience shipping production-critical, reliable embedded systems across two or more of: bare metal, RTOS, embedded Linux (or deep expertise in one with clear ability to ramp the others) Strong ...

Senior Software Engineer — Scale Robust, Secure Systems (Hybrid)

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
fintech startup in London is searching for a Senior Software Engineer to implement robust systems for their rapidly growing app. The ideal candidate will have extensive experience with high-volume applications and proficiency in various programming languages, including Python and Java. This role includes hybrid ...

Senior Embedded Systems Engineer — Firmware & Rack Management

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Fractile in London or Bristol is building a world-class AI inference platform. You’ll develop firmware and systems software for management controllers across rack, BMC, and board devices, with RTOS and bare-metal environments. Join a hybrid team with 3 days in the office and 2 days ...

Senior Platform Engineer, Distributed Systems (Hybrid)

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
small and senior, split between London and Berlin. Senior Backend/Platform Engineer (Hybrid) will work on deep systems including scheduling, distributed #J-18808-Ljbffr ...

Senior AI Engineer - Production-Grade LLM & Agent Systems

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
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 ...

Senior Backend Engineer - Architect & Scale Systems

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
United States Digital Space LLC in Greater London is seeking a Senior Backend Engineer to lead complex backend systems design and maintenance. You will contribute to high-quality software delivery and mentor junior engineers. The ideal candidate will have over 7 years of experience ...

Senior Data Systems Engineer: AI-Driven Analytics

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
United States Digital Space LLC is seeking software professionals to implement end-to-end features across application and data layers, designing data models (star/snowflake) for analytics, optimizing queries, and debugging performance issues. The ...

Senior Software Engineer, Controllers & Financial Systems

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
WeAreTechWomen is seeking a Controller Engineer to design systems supporting financial measurement and reporting in an Agile environment. The role involves managing the entire systems development process and collaborating with Finance stakeholders. Ideal candidates have a Bachelor’s degree and over six years of software development ...

Senior Generative AI Engineer - Production Systems on Azure

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
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 ...

Senior Java Engineer - Distributed Systems, Hybrid London

Hiring Organisation
Jobleads-UK
Location
London, England, United Kingdom
leading enterprise SaaS provider in London is seeking a Senior Java Engineer to enhance their core platform team. This permanent, full-time role offers a hybrid work schedule and responsibilities include participating in all product lifecycle phases and mentoring team members. The ideal candidate has 7+ ...

Senior Agentic AI Systems Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
WeAreTechWomen is seeking an experienced AI Engineer (Agentic/Applied) to build and deploy production-grade agentic AI systems. You will lead technical design sessions and create scalable patterns across various enterprise technology stacks. This role requires significant experience with agentic orchestration frameworks, direct LLM API usage ...

Senior Platform Engineer: Cloud AI Systems (AWS/GCP)

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
leading environmental technology firm in Greater London is seeking a Senior Software Engineer to enhance their cloud architecture capabilities. This role involves owning platform components across AWS and GCP, deploying workloads in customer environments, and mentoring junior engineers. Candidates should possess strong skills in cloud platforms ...

Senior Backend Engineer — Remote UK, GPUs & Systems

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
seeking a Senior Backend Software Engineer to join the Spacetime UK team. You will contribute to core software, optimize distributed systems, and drive production-ready solutions for aerospace communications. Hybrid remote/in-office arrangements are available for candidates who can work within the UK. … will design and implement scalable systems, lead technical initiatives, and collaborate with senior engineers on challenging projects across land, sea, air, and #J-18808-Ljbffr ...

Senior AI Engineer - Agentic ML Systems (London)

Hiring Organisation
Jobleads-UK
Location
City Of London, England, United Kingdom
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 ...

Senior QA Engineer - POS & Kitchen Systems (AI-driven QA)

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Nando's Group in the United Kingdom is seeking a Senior QA Engineer to lead quality across our Point of Sale and Kitchen Management platforms, combining hardware validation with modern testing practices to ensure reliability for millions of customers and Nandocas. You will own test planning ...

Senior AI Engineer: Build Production-Grade LLM & Agentic Systems

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
NewDay Technology Limited is looking for a Senior AI Engineer to design and deliver AI systems across the business. This hands-on role aims to build scalable and reliable solutions with LLMs, embedding AI directly into core business processes. You will take high-value problems … turn them into robust, production-ready systems. Requirements include proven experience in developing production-grade AI systems and expertise in generative AI. The position offers 26 days of holiday, private medical insurance, and a double-matched pension. #J-18808-Ljbffr ...

Senior Software Engineer II — Drive Scalable, High-Impact Systems

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Menlo Ventures is seeking a Senior Software Engineer II in Greater London to lead complex technical projects and simplify systems within our technology stack. With a focus on collaboration and mentorship, this role requires 8+ years of software engineering experience, particularly in Python, Django, React ...

Senior Quantitative Engineer, Risk & Data Systems

Hiring Organisation
Jobleads-UK
Location
Bromley, England, United Kingdom
Bank of America in Bromley seeks a Senior Quantitative Engineer to help design and oversee scalable data and analytics capabilities within Global Risk. The role collaborates with modelers, risk managers and technologists to deliver future-state data solutions and robust testing frameworks. You will lead ...

Senior AI Engineer: Azure, RAG & LLM Systems

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
London Stock Exchange Group in London is seeking a Senior AI Engineer to advance cutting-edge AI capabilities across our global financial markets infrastructure. You will work with Azure AI Foundry, Azure AI Search and Langfuse to design scalable agents, evaluate performance, and optimize costs while ...

Senior Infrastructure Engineer: Build Scalable Cloud Systems

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
leading fintech company in Greater London is seeking a Senior Software Engineer specialized in Infrastructure. The role involves deploying and maintaining software, automating deployment processes, and developing observability tools. Candidates should possess 5+ years of experience, a degree in a technical field, and proficiency in Python ...

Senior Perception & Autonomy Systems Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
A leading electric vehicle manufacturer based in Greater London seeks an experienced Perception Engineer. The role involves developing machine learning algorithms that directly impact safety-critical self-driving features. Candidates should have a strong background ...

Senior GTM Engineer: AI‐Powered Outbound & Revenue Systems

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Traveltechessentialist is seeking a Senior GTM Engineer in Greater London to spearhead AI-driven outbound strategies and manage GTM system integrations. This role involves designing and maintaining sophisticated Clay workflows while ensuring data quality and operational efficiency. The ideal candidate will have over 6 years ...