Principal Mechanical Engineer

Advance TRS

📍 rhyl, wales, United-Kingdom

Full-time Other-General Posted June 11, 2026

Job Description

Mechanical Design Engineer (Lead / Principal grade)

Our client is seeking a highly experienced Principal Mechanical Engineer (contract or permanent) to lead the design and delivery of complex water and wastewater infrastructure projects. This is a key technical leadership role within the team, providing strategic input across project lifecycles, ensuring compliance with industry standards, and driving engineering excellence across mechanical packages.

Key Responsibilities

  • Provide strategic leadership in the design and delivery of mechanical infrastructure for clean and wastewater treatment works.
  • Lead the development of detailed mechanical designs, including drawings, specifications, and calculations.
  • Oversee and direct site assessments, feasibility studies, and design reviews; provide expert input during construction to resolve complex technical issues.
  • Act as the mechanical discipline lead, collaborating with multi...