Commissioning Engineer (Mechanical) - Sellafield Site
Location: Sellafield, Cumbria
Pay: Up to £50 per hour (Inside IR35)
Contract: Full-time, site-based (4 on 4 off rotation or standard site hours)
Start Date: ASAP
Duration: Until April 2026
About the Role
We're looking for an experienced Commissioning Engineer (Mechanical) to join the team at Sellafield. This is a key role in supporting the safe and efficient commissioning of complex mechanical systems within one of the UK's most challenging and highly regulated industrial environments.
Key Responsibilities
Deliver assigned commissioning tasks safely and effectively in line with established procedures.
Control, witness, record, and assess commissioning test results, especially where they impact safety.
Plan and deliver commissioning activities on schedule and within budget.
Maintain a strong focus on nuclear, radiological, conventional, and environmental safety. Liaise with internal and external stakeholders to coordinate activities and permissions.
Review commissioning documentation and test outcomes for accuracy and compliance.
Contribute to related project processes, including design reviews, HAZOPs, and risk assessments.
Essential Experience & Qualifications
Proven experience in nuclear mechanical systems commissioning.
Background in highly regulated industries - nuclear experience essential, Sellafield experience preferable.
Minimum HNC/HND in an Engineering discipline (or equivalent).
Competent with Microsoft Office and Excel-based calculations.
Understanding of project management principles (APM membership desirable).
IOSH Managing Safely and valid trade card required.
Must be able to obtain BPSS and P4 security clearance.
Why Join
Work on a nationally significant project at Sellafield.
Competitive pay - up to £50 per hour (Inside IR35).
Flexible working pattern - 4 on 4 off rotation or standard site hours.
Immediate start available