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
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Deliver mechanical engineering solutions across design and project phases
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Resolve complex technical issues using your specialist knowledge
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Produce and review technical reports, calculations, and documentation
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Ensure compliance with project specifications and stakeholder requirements
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Support and guide junior engineers within the team
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Build strong relationships with internal and external stakeholders
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Work independently or as part of a multi–disciplinary engineering team
What We're Looking For
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Proven experience as a Mechanical Engineer or Senior Engineer
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Background in highly regulated industries (ideally nuclear)
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Strong technical problem–solving and analytical skills
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Experience producing and reviewing engineering documentation
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Ability to work autonomously with minimal supervision
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Strong stakeholder engagement and communication skills
Key Details
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Location: Warrington (3 days onsite, hybrid working)
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Rate: 51– 61/hour (Inside IR35)
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Clearance: BPSS minimum (higher clearance beneficial)
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Project: PFDO Programme – Sellafield
Why Apply?
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Be part of a major UK nuclear infrastructure programme
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Long–term contract stability
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High–impact engineering role with real responsibility
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Collaborative, forward–thinking project environment
