Principal Engineer Jobs in United Kingdom

As Principal Engineer, you'll be responsible for defining and championing appropriate engineering practices across product development, ensuring our teams consistently deliver brilliant, commercially successful products. You'll act as a trusted technical authority, mentor and problem solver, influen

MOO brings brands to life in a sustainable way, with a range of remarkable print and merchandise products. We combine design, technology, manufacturing and service, so that people can connect in memorable ways. Not online but out there, in real life. We started in 2004. Since then we’ve built an awa

We are seeking a Principal Engineer (Platform Architecture) to help lead the design and evolution of our market-leading analytics platform, shaping technical direction while solving complex, real‑world problems at scale. About us Founded in 2014, Cassini is the established, core utility provider of

Shape the Future of Scotland's Energy Network At BakerHicks, we're playing a key role in delivering the UK's energy transition. Working alongside our construction colleagues at Morgan Sindall Utility Services, we have experienced significant growth within the Transmission & Distribution sector and c

About Commercetools Real innovation starts with a strong foundation, and at commercetools, that comes from the perfect balance of our product and our people. Behind every leap forward is a collective of builders, explorers, doers, makers, and problem-solvers. The kind of people who not only pioneere

BakerHicks has experienced significant growth within the Transmission & Distribution sector over the last decade, securing and delivering major infrastructure projects across the UK. As our project portfolio continues to expand, we're looking for a Senior / Principal Electrical Engineer - HV Distrib

Reporting to the Associate Director or Associate Engineer, you’ll lead Civil & Structural project teams or oversee multiple smaller teams, taking responsibility for the technical delivery and overall performance of your projects. We’re looking for a well-rounded engineer with broad experience across

About the Role Reporting to the Head of Civils - Bridges, you will be a Chartered Engineer with experience of managing medium-size bridges projects, or managing packages on large projects, typically in a discipline lead capacity. The ideal candidate will be capable of managing diverse projects and a

About AlphaSense: AlphaSense is the AI platform redefining market intelligence and workflow orchestration, trusted by thousands of leading organizations to drive faster, more confident decisions in business and finance. The platform combines domain-specific AI with a vast content universe of over 50

Location: London, Warwick, Manchester, Derby At BakerHicks, ​​​​​​​our Electrical Services team works with clients across multiple sectors, delivering large and complex projects which require highly resilient power supplies. Specialising in heavily-regulated industries where quality and safety are k

Updated: 07 July 2026 Freelance | 8–20 hrs/week | Remote (EU/UK) Are you an accomplished Principal Software Engineer passionate about shaping the future of artificial intelligence? Join 10x Team as a Freelance Principal Software Engineer – AI Trainer and leverage your technical expertise to enhance

Fin, now part of Salesforce, is on a mission to help businesses provide perfect customer experiences. Our AI Agent Fin is the highest-performing AI Customer Agent on the market today, enabling businesses to deliver impeccable, always-on customer support across the customer journey, from service, to

Canonical is a leading provider of open source software and operating systems to the global enterprise and technology markets. Our platform, Ubuntu, is very widely used in breakthrough enterprise initiatives such as public cloud, data science, AI, engineering innovation, and IoT. Our customers inclu

Job Title: Principal Engineer, Test – AI Core Services Development Location: Cambridge, UK Company OverviewAt Codvo, software and people transformations go hand-in-hand. We are a global empathy-led technology services company. Product innovation and mature software engineering are part of our core D

GitLab is the intelligent orchestration platform for DevSecOps. GitLab enables organizations to increase developer productivity, improve operational efficiency, reduce security and compliance risk, and accelerate digital transformation. More than 50 million registered users and more than 50% of the

Moog is a performance culture that empowers people to achieve great things. Our people enjoy solving interesting technical challenges in a culture where everyone trusts each other to do the right thing. For you, working with us can mean deeper job satisfaction, better rewards, and a great quality of

At GHD we are committed to addressing the world’s biggest challenges in the areas of energy, water and communities. About usWe are a global network of multi-disciplinary professionals providing clients with integrated solutions through engineering, environmental, design and construction expertise. O

Job Description SummaryThe Control Automation System Principal Engineer serves as the technical authority for automation systems, industrial controls, and operational technologies across the organization. This role leads the architecture, design, implementation, and governance of advanced control sy

Job Description Purpose of the role To drive technical excellence and innovation by leading the design and implementation of robust software solutions, providing mentorship to engineering teams, fostering cross-functional collaboration, and contributing to strategic planning to ensure the delivery o

Job Description SummaryPrincipal Engineers combine a high level of technical expertise with sound business acumen and a good understanding of engineering processes. They are part of a formal career path for technical personnel wanting to continue to develop and grow their technical competencies whil