Principal Engineer Jobs in United Kingdom

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 Engin

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

ABOUT BEAMERY With the rapid expansion of AI and automation, the future of work has never been more challenging for organizations. Beamery’s unique jobs, skills and tasks data platform helps organizations navigate these challenges and make more informed decisions across Talent Lifecycle Management.

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

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 pioneered

At Bazaarvoice, we create smart shopping experiences. Through our expansive global network, product-passionate community & enterprise technology, we connect thousands of brands and retailers with billions of consumers. Our solutions enable brands to connect with consumers and collect valuable user-g

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

ABOUT THE JOB We’re looking for a Principal Engineer - Hydro to lead the design, development, and integration of advanced control systems across the hydro industry. In this senior role, you’ll take full ownership of technical solutions, guiding projects from concept through to delivery while ensurin

About 9fin 9fin is the AI platform powering global debt markets — the world’s largest asset class at over $145 trillion. Debt markets are vast, global, and mission-critical, yet still run on fragmented data, PDFs, and manual workflows. 9fin replaces this broken infrastructure with a single platform

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 ac

What are we building? Hard Rock Digital is a team focused on becoming the best online sportsbook, casino, and social gaming company in the world. Backed by a brand known the world over for gaming, entertainment, and hospitality, we operate like a fast-moving startup with a passion for building produ

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

MOO is all about making great design available to everyone. We do that by producing premium print and branded merchandise. But it’s as much about how we do it, leading with design, technology and sustainability. Founded in 2004, we’ve come this far by being obsessed with the happiness of our custome

Company Overview Throughout our worldwide network of experts, clients and communities, we are renowned for our leadership in fire protection engineering – a legacy of responsibility we have proudly upheld since 1939. Today, our expertise extends broadly across closely related security and risk-based

CoreWeave is The Essential Cloud for AI™. Built for pioneers by pioneers, CoreWeave delivers a platform of technology, tools, and teams that enables innovators to build and scale AI with confidence. Trusted by leading AI labs, startups, and global enterprises, CoreWeave combines superior infrastruct

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 qualit

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

BakerHicks has experienced rapid growth in the Transmission & Distribution sector over the past decade, securing major infrastructure projects across the UK. As demand for high-quality engineering design continues to rise, we’re looking for a Senior/ Principal Electrical Engineer – HV Dis

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

Lead Principal Engineer Location: London / Hybrid Working Lead the Future of Engineering at Sainsbury's Tech At Sainsbury's, technology powers experiences for millions of customers every week. As our Lead Principal Engineer, you'll play a pivotal role in shaping the future of engineering across the