Commissioning Engineer – Water & Wastewater

Company: Murray McIntosh Associates Ltd
Apply for the Commissioning Engineer – Water & Wastewater
Location: Manchester
Job Description:

Commissioning Engineer – Water & Wastewater

Location: Bury, Greater Manchester

Contract: 12-month rolling contract

IR35: Outside IR35

Working pattern: Hybrid, 3 days per week in the Bury office, with site attendance as required

Rate: Up to £600 per day (DOE)

We are looking for an experienced Commissioning Engineer to support the delivery and commissioning of water and wastewater infrastructure projects.

This is a long-term contract opportunity, structured as a 12-month rolling engagement and advertised as outside IR35, offering continuity of work alongside a hybrid working arrangement in Bury.

Responsibilities

  • Develop commissioning plans, programmes and associated documentation.
  • Review engineering designs to ensure assets can be commissioned effectively.
  • Coordinate commissioning activities with Project Managers, Designers, Contractors and site teams.
  • Inspect installations against design specifications.
  • Undertake pre-commissioning checks and functional testing.
  • Test mechanical, electrical, instrumentation, control and automation systems.
  • Troubleshoot and resolve technical issues arising during commissioning.
  • Manage performance and process testing to demonstrate compliance with client requirements.
  • Produce commissioning documentation, test records and handover packs.
  • Support operational teams during system start-up and training where required.
  • Ensure commissioning activities are undertaken safely and in accordance with applicable procedures and regulations.

Experience required

  • Commissioning experience across mechanical, electrical, instrumentation and control systems.
  • Previous experience within water, wastewater, utilities, industrial or infrastructure projects.
  • Good knowledge of pumps, pipework, valves, treatment processes and associated plant.
  • Demonstrable fault-finding and troubleshooting capability.
  • Understanding of CDM Regulations and safe systems of work.
  • Degree, HNC or HND in Mechanical Engineering or a related discipline.This would suit an experienced water-sector Commissioning Engineer looking for a long-term contract with a combination of office-based engineering and project/site commissioning.

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Posted: October 21st, 2026