101 Principal engineer jobs in UK

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Principal Civil Structural Engineer

27 February 2026
Hays Specialist Recruitment - Warrington, Cheshire, WA3 6GN
£60,000.0 to £80,000.0 per year
Hybrid remote
Permanent
Full time

Join a leading consultancy delivering transformative engineering solutions across the nuclear, renewable energy, and high-energy industrial sectors - including data centres and hydrogen production facilities. This is a senior opportunity to shape nationally ...

Principal Mechanical Design Engineer

08 February 2026
Hays Specialist Recruitment - Birmingham, West Midlands, B37 7WY
£50,000.0 to £65,000.0 per year
Permanent
Full time

Your new company We are recruiting on behalf of a leading organisation within the commercial decarbonisation and offsite energy solutions sector. With operations spanning the UK, Ireland, and Europe, they are well established in designing and delivering ...

Principal Mechanical Design Engineer - Derby

18 February 2026
Hays Specialist Recruitment - Derby, Derbyshire, DE1 1EQ
£55,000.0 to £65,000.0 per year
Permanent
Full time

Your new company You'll be joining a well‑established building services consultancy recognised for delivering technically strong, sustainable and low‑carbon engineering solutions. The Derby office supports a wide mix of projects across commercial, residential...

Principal Telecommunications Design Engineer (Building Services)

19 February 2026
NRL Ltd - London, London, TA5 1FB
£250 per hour
Contract
Full time

About the Opportunity: NRL is recruiting for a Principal Telecommunications Design Engineer to support a major client across the UK. Joining a well-established and growing multidisciplinary team, you will play a key role in delivering integrated building ...

Principal Temporary Works Design Engineer

26 February 2026
Fawkes & Reece - Watford, Hertfordshire, wd231jw
£60,000 to £80,000 per year
Hybrid remote
Permanent
Full time

My client is a leading name in the construction and engineering industry, renowned for delivering high-quality infrastructure projects across the UK. With a commitment to innovation, sustainability, and excellence, they are dedicated to shaping the future of ...

Lead EC&I Engineer

20 February 2026
Millbank Holdings Ltd - Warrington, North West, Warrington
Contract
Full time

Are you a proven Principal Engineer specialising in Electrical, Control & Instrumentation with experience leading front-end design for complex projects? Have you demonstrated extensive knowledge in CE&I project delivery, including producing and reviewing ...

Senior Design Engineer - HV Plant

11 February 2026
J Murphy & Sons - Cannock Office (2021000014), -
£50000-65000 per annum
Permanent
Full time

Murphy is a leading international, specialist engineering and construction company founded in 1951 with a purpose to improve life by delivering world-class infrastructure. Operating in the United Kingdom, Ireland, Canada and America, Murphy provides better ...

Structural Engineer

21 February 2026
Pertemps - Derby, Midlands, de24 8xl
£36,000 to £60,000 per year
Permanent
Full time

Structural Engineers – All levels Permanent Derby £36,000 - £60,000 Due to significant framework wins expanding their project portfolio this multi-disciplinary consulting engineering firm are looking to hire a number of Structural engineers at all levels. The ...

Senior Design Engineer - Temporary Works

11 February 2026
J Murphy & Sons - Kentish Town Office (2021000049), -
£45000-58000 per annum
Permanent
Full time

EC&I Engineer

26 February 2026
PWHytek Ltd - Warrington
Hybrid remote
Contract
Full time

We are recruiting for a number of Electrical, Control & Instrumentation Engineers & Designers across a range of seniority levels for several major Nuclear and Defence clients based in Preston, Warrington & Hessle. We are offering full time roles on a hybrid ...