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Engineering principal design engineer mechanical £100,000 - £150,000
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Manpower UK Ltd
19 May, 2026
Contract
Senior Mechanical Engineer
£50.00 - £51.00 hourly
Manpower UK Ltd Cardiff, UK
Job title: Senior Mechanical Engineer (Building Services) Location: Cardiff / Swansea (Hybrid 3 days per week) Pay Rate: 51 per hour Umbrella PAYE (37.5 hours per week) Qualifications required: Degree / IEng / CEng Travelling costs expensed Notice Period: 4 weeks Contract Term:4 months (with extension) About the company Our client are ranked as one of LinkedIn's Top 25 Companies, where UK professionals want to work and stay once they join. They've also made the Times Top 50 employers for women. Their Infrastructure team uses innovation, new approaches and the power of data to help our clients deliver end-to-end projects and programmes for essential future infrastructure. And as the work becomes ever more complex, their employees continue to challenge the status quo. Our client are looking for Senior / Principal Mechanical Building Services Contract Engineer to join their growing team in Cardiff. The responsibilities of the role are:...
Rullion Managed Services
14 May, 2026
Contract
Project Manager - Civils
£484 - £700 daily
Rullion Managed Services Leiston IP16, UK
Role: Project Manager (Civils) Position: Contract Location: Leiston / hybrid Days on Site: 3 days Duration: Approx until 31st Dec 2026 Pay: up to 484 PAYE - 700 Umbrella The Civil Works Programme comprises a series of projects that will be delivered over a 10-year period. Each element of the scope has been assigned to a combination of participants that will be responsible and accountable for the delivery. The Civils Programme will deliver the Sizewell C Civil Engineering scope to support the MEH erection in the Nuclear, Conventional and Heat Sink islands. The Civil Works Programme is responsible for delivering: Enabling and Earthworks: sea defences, access facilities, civil engineering work to support site establishment, diaphragm walling around the nuclear plant footprint, dewatering, excavation and earthworks. Tunnelling and Marine: beach landing facility, jetty, shafts and intake and outfall tunnels for the nuclear plant cooling systems. Main civil...
Eden Brown
09 May, 2026
Contract
Principal Pipeline Engineer
£60.00 - £65.00 hourly
Eden Brown United Kingdom
Principal Pipeline Engineer Location: Remote with occasional visits to office for Project Meetings Position is with a global multi disciplined Engineering solutions provider Team: Energy Transition Shape the future of low-carbon infrastructure. We're driven by a simple belief: the world we design today should create a cleaner, greener and safer tomorrow. We push boundaries, embrace innovation and collaborate across a global network of experts to deliver solutions that stand the test of time. Join us, and you'll be part of a team that takes pride in its people, its purpose and its impact. About the Role We're looking for a Principal Pipeline Engineer to join a growing Energy Transition Team. This is an exciting opportunity to lead the development of mechanical and pipeline designs across a wide range of transmission projects, including: Natural gas (below and above 7 bar) Hydrogen transmission Carbon dioxide pipelines Wider low-carbon and energy transition...
Eden Brown
09 May, 2026
Contract
Principal Mechanical Engineer
£60.00 - £65.00 hourly
Eden Brown United Kingdom
Principal Mechanical Engineer - Low Carbon Location: Remote with occasional visits to the office project meetings Team: Energy Transition Shape the future of low-carbon energy. We're looking for a Principal Mechanical Engineer to join our client's growing Energy Transition Team and play a leading role in delivering the next generation of low- and zero-carbon energy projects. If you thrive on solving complex engineering challenges and want to influence the UK's transition to cleaner energy, this is a role where your impact will be felt for decades. About the Role As a senior member of a multidisciplinary engineering group, you will lead the development of mechanical designs across a diverse portfolio of energy projects - from early-stage concept work through to construction, operation and eventual decommissioning. The work spans: Conventional power generation Energy-from-waste facilities Industrial energy systems Carbon capture, utilisation and storage (CCUS)...
Advance TRS
22 May, 2026
Contract
Principal Civil Engineer
£450 - £550 daily
Advance TRS United Kingdom
Job Title: Principal Civil Engineer Day Rate: Up to 550 per day (outside IR35) Location: Manchester, with occasional site visits (expenses paid) Type: 12-month Contract Full-time Hybrid (1-2 days WFH) About the Role: You'll be leading on the design and delivery of varied water sector projects, including: Sewage treatment works upgrades Clean water main replacements IED schemes at sewage treatment works CSO upgrades and storm storage solutions This senior role involves steering technical excellence while working closely with both internal teams and regulated water clients. About the Client: Our client is a trusted engineering design consultancy operating across the UK rail and utilities sectors. With a solid reputation and a growing portfolio, they are known for their collaborative culture and strong values. Wellbeing is central to their ethos - they prioritise a safe, fair and positive workplace where people can do their best work. Key Responsibilities:...
Rullion Managed Services
15 May, 2026
Contract
Nuclear Safety Engineer Support
£300 - £405 daily
Rullion Managed Services Somerset, UK
Role: Nuclear Safety Engineer Support Position: Contract Location: Hybrid between HPC site, Aztec West, Home. Days per week: 3 days per week/ 19 hours per week Duration: 12 Months Rolling Rate: Circa 300 p/d PAYE + 36 days annual leave Circa 405 p/d Umbrella Job Purpose / Overview As a Nuclear Safety Engineer Support , you will need to support the development of the Operational Nuclear Safety capability for Hinkley Point C (HPC). This will include input during design, construction, commissioning, and the preparations for operation. The Nuclear Safety Engineer will support the project to ensure that nuclear safety requirements are met and will strive to achieve world best practices identified by bench marking with other industry leaders and industry programmes. Principal Accountabilities Supporting the maintenance and development of the Operational and Hazard technical specifications by providing safety case expertise and advice Overseeing implementation of the...
Eden Brown
09 May, 2026
Contract
Principal Electrical Engineer
£60.00 - £65.00 hourly
Eden Brown United Kingdom
Principal Electrical Engineer - Low Carbon Location: Remote with occasional visits to the office for project meetings Role Overview Position is with a global multi disciplined Engineering solutions provider You'll be part of a multidisciplinary team delivering cost-effective, efficient and innovative engineering solutions to complex challenges, helping to shape practical, high-quality designs across a wide range of energy projects. This role involves contributing to projects at all stages of maturity, including Feasibility Studies, Concept Design, FEED, Value Engineering and Detailed Design. You'll take a lead role in developing electrical engineering deliverables and supporting the assessment, optimisation and safe operation of electrical systems across the energy sector. Key Responsibilities Lead and support the development of practical, cost-effective and innovative engineering solutions in collaboration with wider project teams. Deliver engineering work across...
Advance TRS
09 May, 2026
Contract
Package Manager (Agent)
£500 - £525 daily
Advance TRS Grays, UK
Package Manager (Agent) Package Manager required for delivery of engineering surveys as part of the very prestige project. London The surveys consist of the following: - Topographical surveys - Ground Investigation - Trial Trenches - Weathering Steel Initial responsibilities will be to support the Project Manager and Engineering Director to finalise the scope, procurement, and programme for all scopes of work. The successful candidate will: Health, Safety & Wellbeing: Maintain a safe working environment by enforcing health and safety regulations, best practices, and adherence to the Construction Phase Plan. Monitor compliance with onboarding and induction processes for your element of works. Review all Works Package Plans for both subcontract and self-delivered works. Work with the Project Manager and Principal Designer to ensure CDM requirements are met for the scheme. Work with the Health & Safety Manager to investigate any incidents that occur on the...
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