Mechanical/Senior Mechanical Engineer- Nuclear

Mechanical Engineer / Senior Mechanical Engineer – Contract (Inside IR35)
Warrington (Hybrid – 3 Days Onsite)
£51-£56 per hour
Long-Term Contract | Major Nuclear Programme – PFDO, Sellafield

Are you a Mechanical Engineer ready to step into a high-impact role on one of the UK’s most critical nuclear programmes?
We’re supporting a key delivery partner on the PFDO project at Sellafield, and we’re looking for a Mechanical Engineer or Senior Mechanical Engineer to help drive engineering excellence across complex, safety-critical work.

The Opportunity
You’ll play a vital role in delivering engineering and technical activities across the project lifecycle-bringing your expertise to solve complex challenges and ensure high-quality outputs in a regulated environment.
This is a fantastic opportunity to work on a flagship nuclear programme, collaborating with experienced teams while contributing to the safe and efficient delivery of major works.

What You’ll Be Doing

• Deliver mechanical engineering solutions across design and project phases
• Resolve complex technical issues using your specialist knowledge
• Produce and review technical reports, calculations, and documentation
• Ensure compliance with project specifications and stakeholder requirements
• Support and guide junior engineers within the team
• Build strong relationships with internal and external stakeholders
• Work independently or as part of a multi-disciplinary engineering team

What We’re Looking For

• Proven experience as a Mechanical Engineer or Senior Engineer
• Background in highly regulated industries (ideally nuclear)
• Strong technical problem-solving and analytical skills
• Experience producing and reviewing engineering documentation
• Ability to work autonomously with minimal supervision
• Strong stakeholder engagement and communication skills

Key Details

• Location: Warrington (3 days onsite, hybrid working)
• Rate: £51-£61/hour (Inside IR35)
• Clearance: BPSS minimum (higher clearance beneficial)
• Project: PFDO Programme – Sellafield

Why Apply?

• Be part of a major UK nuclear infrastructure programme
• Long-term contract stability
• High-impact engineering role with real responsibility
• Collaborative, forward-thinking project environment