Senior Mechanical Engineer

Company: Advance TRS
Apply for the Senior Mechanical Engineer
Location: St Albans
Job Description:

Senior Mechanical Engineer – Water Sector

St Albans: Hybrid (3 Days Office)

Advance TRS are supporting a rapidly growing consultancy in their search for a Senior 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

  • 8+ years’ mechanical design experience within the UK water sector
  • Experience with clean water and/or wastewater projects
  • Knowledge of electrical and control systems is advantageous
  • Degree or HND qualified
  • Working towards or already achieved Chartership

Why Join?

  • Be part of a brand-new London team from the ground up
  • Opportunity to influence processes, culture and future growth
  • Secure long-term workload across major water sector frameworks
  • Flexible permanent or outside IR35 contract options available

Apply now for a confidential discussion or contact Molly Brown for more information.

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Posted: June 12th, 2026