626 to 650 of 818 Principal Engineer Jobs in the UK

SchemeServe Ltd. in the UK is seeking an exceptional Principal Backend Engineer to shape our backend engineering strategy, architecture and technical direction. You’ll be one of the most technically experienced engineers and the CTO's primary technical partner for backend engineering. This is a deeply technical, influence ...

Redline Group Ltd. in Great Yarmouth, Norfolk, is seeking a Principal Test Engineer to define and lead test strategies across our R&D and production teams. The role supports a hybrid working model and the innovative 9-day working fortnight, delivering robust test solutions for a range ...

implementation, observability, and security while partnering with Product and Platform teams to deliver measurable AI systems in production. Job Description Role Senior/Principal Applied AI Engineer responsible for designing, building, and operating production AI agents, agentic workflows, and the orchestration/harness layers that integrate LLMs into ...

Alan Turing Institute is seeking a Principal Machine Learning Engineer to lead the development and deployment of advanced AI, ML and data science solutions in collaboration with UK national security partners. This role combines technical leadership with hands-on engineering and mentorship across research, software and stakeholder engagement. ...

hackajob is partnering directly with AND Digital to hire for this role. Principal Platform Engineer - 12 Month FTC Who We Are: AND Digital are a tech company focused on accelerating digital delivery and dedicated to closing the digital skills gap. Weve been helping organisations build better digital products ...

Work with a variety of clients, typically one to two in a year Rapidly build trust with clients and understand their domains and objectives Drive platform engineering work and lead platform strategy and delivery Balance ...

Gemba Advantage is seeking Senior and Principal Software Engineers to design and deliver secure, scalable cloud-native services in small teams. You will remain hands-on while guiding architecture and standards, mentoring peers, and collaborating with customers. The role requires active or recently active SC/DV clearance ...

diverse portfolio of projects. Many schemes are developed to achieve ambitious sustainability objectives, including BREEAM certification and compliance with The London Plan. The Principal Electrical Engineer will play a key role in the design and delivery of electrical infrastructure projects, undertaking technical assessments, engineering calculations, and the preparation ...

CBRE Group, Inc. in London is seeking a Principal Terraform Cloud Engineer to lead data pipelines, AI/ML integration, and cloud cost management solutions. You will drive end-to-end data engineering, model development, and platform feature work within CBRE's FinOps program. You will design scalable ...

MOO is seeking a Senior IC to lead architecture across its ecommerce platform, spanning storefront, checkout, order orchestration, manufacturing and fulfillment. You will partner with product leadership, Platform and Architecture peers to guide the future ...

Principal Microsoft Defender XDR, IRM & Deception Engineer, working within the Global Information and Cyber Security Defence (ICSD) function, is the technical leader for enterprise cyber deception and unified detection and response across the Microsoft security ecosystem. The role focuses on building, operating, and continuously evolving an enterprise-grade ...

MacStaff is seeking a Senior/Principal Power Systems Engineer to lead power systems studies, design for data centres, and manage client relationships from London or Manchester with hybrid work. The role combines technical leadership with project delivery and stakeholder engagement. You will work on complex load-flow ...

directly with Raytheon UK to hire for this role. Date Posted: 2026-06-26 Country: United Kingdom Location: Manchester, Lancashire Position Role Type: Onsite Principal Platform Engineer Manchester Permanent, full time Hybrid (min 3 days a week on site) Due to the interestingworkwe do and the sector this ...

with Raytheon UK to hire for this role. Date Posted: 2026-06-26 Country: United Kingdom Location: Gloucester, South Gloucestershire Position Role Type: Onsite Principal Platform Engineer Gloucester Permanent, full time Hybrid (min 3 days a week on site) Due to the interestingworkwe do and the sector this ...

seeking a highly experienced Principal Software Engineer to provide technical leadership across our technology function, driving the design, delivery, and continuous improvement of enterprise applications and digital services. This senior hands-on role combines deep technical expertise with strong stakeholder management skills and a commitment to engineering excellence. ...

"We energize society" by supporting our customers to make the transition to a more sustainable world, based on innovative technologies and our ability to turn ideas into reality. With nearly 100,000 employees around the ...

Leonardo UK is seeking a Principal Software Engineer for Test Environments (GCAP) to lead the development of robust test ecosystems for the Global Combat Air Programme. The role spans strategy through to implementation, including test rigs, simulation environments, and integrated solutions supporting UK and international collaboration. You will ...

Leonardo Worldwide Corporation is looking for a Principal Platform Engineer in Yeovil. You will tackle complex technical challenges, leading the design and implementation of secure platforms across various environments. This role involves mentoring engineers and ensuring systems align with secure-by-design principles. A hybrid work model ...

Dyson seeks an Associate Principal Embedded Software Engineer for the Power Electronics discipline in Malmesbury, Wiltshire. The role focuses on leading efficient embedded software for power electronic systems, such as motor drives and battery management, taking ideas to prototype demonstrations. You will mentor engineers, drive technical delivery ...

segment as well as becoming part of the fabric of Cisco’s wireless, security and collaboration systems. We are a small team where every engineer is hands‐on and has a voice in where the product and technology goes. This creates a rare opportunity for you to work with ...

role is taking payload electronics designed in‐house from prototype to production, in place of bought‐in units. Design cycles are short and the engineer who owns the logic sees it fly. Key Responsibilities Own FPGA and system‐on‐chip design for payload video and control: RTL design, simulation ...

Overview Expleo is a leading Global Engineering Services Provider with UK presence in 10 locations. We are seeking Principal FPGA Design Engineer to support our defence industry client. This is a senior role with the successful candidates ideally have a proven track record for delivering firmware for defence … products. The role is expected to be Hybrid (3 days at the clients Belfast site). We are looking for an energetic and driven engineer with broad expertise, however of particular interest would be candidates with experience of highly regulated industries such as military, aerospace, marine, nuclear or rail. ...

Job Description We’re looking for experienced Golang engineers to join us on a cutting-edge platform engineering and AI programme with a global financial leader. You’ll be part of a high-calibre engineering ...

Overview The Applied Innovation (of AI) Engineering team is an elite machine learning group strategically located within the Chief Data Analytics Office (CDAO) Technology group of JPMorgan Chase. AI Engineering tackles business critical priorities using ...

Matchtech are working closely with a UK defence technology organisation delivering secure communications and cyber solutions used in mission-critical environments. Their teams build high-assurance cryptographic and key management capabilities that enable the confidential ...