Mechanical Commissioning Technician

Mechanical Commissioning Technician – Major UK Infrastructure Project
Location: Cumbria
Contract: 4 months (Likely extension thereafter) 
Rate: Negotiable (DOE) 
Sector: Nuclear Decommissioning & Clean Energy

A nationally significant environmental engineering programme is seeking a Mechanical Commissioning Technician to join the team delivering one of the UK’s most complex and important infrastructure projects. This long-term decommissioning initiative will ensure the safe processing and storage of legacy materials, supporting environmental protection for decades to come.

Working closely with the Commissioning Engineer, you will play a hands-on role in preparing, testing, and bringing mechanical systems into operation. This includes process systems, vessels, pumps, and associated plant equipment.

Key Responsibilities:

• Maintain safety as the highest priority, following nuclear, radiological, conventional, and environmental safety procedures.
• Carry out mechanical commissioning and testing activities across all project stages.
• Support the preparation of commissioning test documentation.
• Assist in implementing and tracking First-Off Builds (FOBs) and Technical Queries (TQs).
• Perform testing activities for third-party witnessing.
• Apply and remove Temporary Commissioning Aids as required.
• Record commissioning data in line with project requirements.
• Use completions management systems to track commissioning progress and handovers.
• Collaborate with multidisciplinary engineering teams and contribute to design reviews.

Skills & Experience Required:

• Time-served or equivalent qualification in a mechanical discipline (e.g., piping, process equipment, or similar).
• ONC or equivalent (or working towards qualification).
• Proven experience in project commissioning within mechanical systems.
• IOSH Working Safely (or equivalent).
• Relevant trade card.
• Proficiency with Microsoft Office Suite.
• Ability to meet client security requirements (BPSS, P4 pass).

This role offers the chance to be part of a landmark UK infrastructure programme, applying your mechanical expertise in a challenging and rewarding environment.

If you are interested and keen to find out more, please apply now with your updated CV and reach out to Tom Johnson at Certain Advantage.