Principal Mechanical Engineer

IO
Full-time , , United Kingdom, , , United Kingdom Engineering
Posted:
February 18, 2026
Location:
, , United Kingdom, , , United Kingdom, United-Kingdom

Job Description

Principal Mechanical Engineer (Water / Wastewater)

Locations (office base options): Bristol, Exeter, Cardiff, Swansea, Birmingham, Derby, Epsom, Peterborough, Cambridge, Leeds, Manchester, Glasgow, Newcastle, Belfast

Working pattern: Hybrid - typically 3 days per week office/site-based

Type: Permanent full-time

The Opportunity

A leading engineering and design consultancy is looking to appoint a Principal Mechanical Engineer to strengthen its Water and Environmental delivery capability. You'll take a key role in delivering complex, multi-disciplinary programmes across water and wastewater infrastructure; helping clients tackle resilience, sustainability and performance challenges across critical UK assets.

What you'll be doing

  • Leading and coordinating mechanical design delivery on complex projects (e.g., pumping stations, treatment works, process/mechanical packages).
  • Producing and checking calculations,...

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Job Overview

Job Type: Full-time
Location: , , United Kingdom, United-Kingdom
Posted: February 18, 2026
Deadline: March 30, 2026