1 to 25 of 33 Principal Engineer Jobs in London

PRINCIPAL DEVOPS ENGINEER- SC CLEARED PRINCIPAL DEVOPS ENGINEER- Permanent opportunity for a Principal DevOps Engineer with SC Clearance. - Salary up to £110,000 DOE - Hybrid opportunity with London based offices - To apply, please call Laura Jackson on , or email with an up-to-date … CV. WHO ARE WE We're hiring for DevOps Engineers at principal level to join a top consultancy delivering cutting-edge solutions for industry-leading Public Sector and Defence clients. You'll have the opportunity to work across multiple high-impact, innovative and mission-critical projects, shaping solutions that ...

Principal Engineer l Architecture l Design l Coaching l Typescript l AWS l Kafka l GraphQL l Lambda l £550-£625 per day l Outside IR35 l twice a week in London l 3 months We're hiring a Principal Engineer to step into a critical … customer migration. You'll operate as a technical leader across multiple squads, shaping architecture, mentoring leads, and unblocking delivery. Essential Skills & Experience Proven Principal-level experience (80% Architecture/design - 20% Coding) Strong in AWS, TypeScript, event-driven systems Experience with high-scale distributed systems Someone collaborative, hands ...

Principal Engineer | TypeScript, Node, Azure | Global Environmental Data Non-Profit Powering Investment Decisions Salary: £75,000 £100,000 Hybrid (2 days a month London office) Im working with a genuinely purpose-led organisation that sits right at the intersection of data, climate, and global finance. Theyve built … with that comes the usual integration challenges. Systems that work, but dont always talk to each other cleanly. Youll come in as their first Principal Engineer, reporting into the CTO, with a remit to bring clarity and structure to how services integrate, while staying hands-on enough ...

Principal Platform Engineer (Microsoft Infrastructure & Azure) Location: 1-2 days a week required in the Central London office Salary: up to £55,000 + benefits We are working exclusively with a well-established non-profit organisation who are seeking an experienced Principal Platform Engineer to join … professional who enjoys owning and improving enterprise platforms across both on-premises and Azure environments. Our client is specifically looking for a hands-on engineer with deep expertise across Windows Server, Active Directory, Azure Infrastructure, security, patching, and operational excellence this is not a cloud-native, DevOps, or Kubernetes ...

Principal Platform Engineer (Microsoft Infrastructure & Azure) Location: 1-2 days a week required in the Central London office Salary: up to £55,000 + benefits We are working exclusively with a well-established non-profit organisation who are seeking an experienced Principal Platform Engineer to join … professional who enjoys owning and improving enterprise platforms across both on-premises and Azure environments. Our client is specifically looking for a hands-on engineer with deep expertise across Windows Server, Active Directory, Azure Infrastructure, security, patching, and operational excellence – this is not a cloud-native, DevOps, or Kubernetes ...

Principal Full Stack Engineer & Architecture Lead London (Hybrid) £80,000 - £90,000 + Benefits Command Recruitment is proud to be partnering with an ambitious and rapidly growing healthcare company that is transforming access to specialist healthcare services across the UK. This is a fantastic opportunity for an experienced … Principal Engineer or Technical Architecture Lead to play a key role in shaping a modern, cloud-native healthcare platform that is making a genuine impact on people's lives. Our client is building one of the UK's most innovative healthcare service platforms and is seeking a hands ...

Principal Engineer Post-Purchase & Fulfilment | London (Hybrid) | Up to £155,000 Principal Engineer's! Own the end-to-end architecture of how a physical product moves from factory floor to customer doorstep. Design led consumer brand with over 30 million customers worldwide. This is a rare ...

Senior Software Engineer/Principal Software Engineer- C++, Python - Financial/Banking. Candidates will have a minimum 8+ years C++ experience and excellent knowledge of Python -coming from a Financial/Banking background with knowledge of Equities, Futures & Options and Fixed Income and Exchange Connectivity. Job Overview … amount of TPS to drive a highly efficient technology used by several markets around the world. To be successful in this role as a Principal Software Engineer - C++, you will be a proponent of agile methodology and modern software best practices. You can produce detailed technical work ...

Principal Engineer TypeScript, Node, Azure Global Environmental Data Non-Profit Powering Investment Decisions Salary: £75,000 £100,000 Hybrid (2 days a month London office) Im working with a genuinely purpose-led organisation that sits right at the intersection of data, climate, and global finance click apply ...

Principal Engineer | TypeScript, Node, Azure | Global Environmental Data Non-Profit Powering Investment Decisions Salary: £75,000 £100,000 Hybrid (2 days a month London office) Im working with a genuinely purpose-led organisation that sits right at the intersection of data, climate, and global finance. Theyve built ...

Senior/Principal Palantir Engineer UK (Hybrid) | Permanent | Data & AI Platform About the Role: Highly reputable organisation currently building a high-impact Data & AI capability and are looking for a Senior/Principal Palantir Engineer to help shape and scale their platform from the ground up. … Shape the direction of a rapidly expanding capability Collaborate with senior stakeholders across the business Solve meaningful, real-world operational challenges Ideal Backgrounds Palantir Engineer/Foundry Engineer Forward Deployed Engineer (FDE) Senior Data Engineer (with Foundry experience) AI/Data Platform Engineer ...

Principal Software Engineer We are looking for a highly experienced Principal Software Engineer with strong backend engineering expertise and a passion for scalable distributed systems. You will play a key role in shaping architecture, engineering standards, and technical direction across the platform. Join a fast-growing … Banking SaaS provider building next generation core banking technology. We are looking for Principal Software Engineers with experience in Node.js/TypeScript/JavaScript, .NET/C#, or Java. You will work directly on customer problems, understand the business context and own solutions end-to-end. From concept ...

Principal Software Engineer We are looking for a highly experienced Principal Software Engineer with strong backend engineering expertise and a passion for scalable distributed systems. You will play a key role in shaping architecture, engineering standards, and technical direction across the platform. Join a fast-growing … Banking SaaS provider building next generation core banking technology. We are looking for Principal Software Engineers with experience in Node.js/TypeScript/JavaScript, .NET/C#, or Java. You will work directly on customer problems, understand the business context and own solutions end-to-end. From concept ...

Principal Data Engineer Location: London 1 day per week onsite Salary: Up to £85,000 + excellent benefits Contract: Permanent Im currently supporting one of the UKs leading universities with the recruitment of a Principal Data Engineer to join their growing Data function. This ...

Principal Data Engineer Salary: £125,000 + Benefits/Bonus Own the rebuild of a modern data platform from the ground up. Were working with a business in the middle of a high-impact data transformationmoving away from legacy constraints towards a scalable, cloud-first architecture. Theyre looking … Principal Data Engineer to take a leading role in that journey. This isnt a role where you inherit a polished environment. Its an opportunity to shape, modernise, and influence from refactoring legacy pipelines to building best-in-class data products using tools like Databricks, Azure, and GCP. Youll ...

Principal Data Engineer Location: London 1 day per week onsite Salary: Up to £85,000 + excellent benefits Contract: Permanent Im currently supporting one of the UKs leading universities with the recruitment of a Principal Data Engineer to join their growing Data function. This ...

Principal Platform Engineer (Microsoft Infrastructure & Azure) Location: 1-2 days a week required in the Central London office Salary: up to £55,000 + benefits We are working exclusively with a well-established non-profit organisation who are seeking an experienced Principal Platform Engineer to join ...

Principal Rust Engineer London | Permanent | Hybrid Ncounter is supporting a global investment firm in hiring a Rust Developer to join a highly influential Product team. This group sits at the core of the business, building the distributed platforms, internal services, and compute frameworks that underpin trading, quant research ...

Principal Mechanical Design Engineer - Data Centres Location: South London About the Role We are looking for an experienced Principal Mechanical Design Engineer to lead the design and delivery of large-scale, mission-critical data centre projects . This is a senior leadership opportunity for someone with … drive best practice Champion sustainability, energy efficiency, and low PUE design strategies Key Requirements Degree qualified in Mechanical Engineering or Building Services Engineering Chartered Engineer (CEng) or working towards chartership Significant experience delivering data centre or mission-critical projects Strong knowledge of: Chilled water systems and plant design Airflow ...

Senior/Principal Palantir Engineer UK (Hybrid) Permanent Data & AI Platform About the Role: Highly reputable organisation currently building a high-impact Data & AI capability and are looking for a Senior/Principal Palantir Engineer to help shape and scale their platform from the ground up. ...

Scalers HQ are proud to be partnering with an innovative and fast growing Media organisation in London. We are looking for a Principal JavaScript Engineer/Team Lead to join their collaborative tech team. You'll play a key role in delivering cutting-edge AdTech analytics solutions, reporting ...

Scalers HQ are proud to be partnering with an innovative and fast growing Media organisation in London. We are looking for a Principal JavaScript Engineer/Team Lead to join their collaborative tech team. You'll play a key role in delivering cutting-edge AdTech analytics solutions, reporting ...

shaping architecture, improving products and unblocking delivery. Solve complex engineering problems and drive best practice across the organisation. Requirements 5+ years' experience as a Principal Software Engineer (or similar) in an enterprise environment. Proven track record leading across multiple engineering teams and specialties. Experience with Event-driven architectures. ...

Role Mission To support customer outcomes by making deep, hands-on Microsoft centric expertise available to customers and internal teams across hybrid identity, security and endpoint management. This includes Windows Active Directory and integration with ...

Role Mission To support customer outcomes by making deep, hands-on Microsoft centric expertise available to customers and internal teams across hybrid identity, security and endpoint management. This includes Windows Active Directory and integration with ...