Mechanical/Senior Mechanical Engineer- Nuclear

Company: Highfield Professional Solutions Ltd
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Job Description:

Mechanical Engineer / Senior Mechanical Engineer – Contract (Inside IR35)Warrington (Hybrid – 3 Days Onsite)51– 56 per hour

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

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Posted: March 22nd, 2026