Overview
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
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
Job Info
* Job Title: Mechanical Commissioning Engineer
* Company: Highfield Professional Solutions Ltd
* Location: Carlisle, Cumbria
* Posted: Oct 7th 2025
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