https://jobs.co.uk/job/principal-mechanical-enigneer-advance-trs--d6a9a44d-b538-4ead-887b-a7b72b9a35cc RSS feed for Principal Mechanical Enigneer at Advance TRS. en-gb Wed, 10 Jun 2026 20:17:20 GMT https://jobs.co.uk/job/principal-mechanical-enigneer-advance-trs--d6a9a44d-b538-4ead-887b-a7b72b9a35cc https://jobs.co.uk/job/principal-mechanical-enigneer-advance-trs--d6a9a44d-b538-4ead-887b-a7b72b9a35cc Thu, 04 Jun 2026 23:00:00 GMT Location: Hertfordshire | Salary: £55 - £65/hour | Type: Contract | Principal Mechanical Engineer - Water Sector St Albans: Hybrid (3 Days Office) Contract: -55-65p/h (Outside IR35) Advance TRS are supporting a rapidly growing consultancy in their search for a Principal Mechanical Engineer. Joining a newly formed London business unit, you''ll have the unique opportunity to help build a team from the ground up, influence how projects are delivered, and play a significant role in the future growth of the business within the UK water market. You''ll lead the mechanical design of clean water and wastewater projects, producing high-quality engineering solutions while mentoring junior engineers and coordinating multidisciplinary design teams. Key Responsibilities: * Deliver mechanical design solutions for water and wastewater projects * Produce calculations, reports, specifications and design drawings * Lead and review work from junior engineers and CAD technicians * Coordinate with suppliers, manufacturers and subcontract design teams * Ensure designs meet industry standards, safety requirements and client expectations * Support project planning, estimating and technical decision-making About You: * 10+ years'' mechanical design ... Contract