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Senior C&I Engineer

United Kingdom, Risley · Job Posted April 23, 2026
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Job Description

At Amentum, we're not just solving problems; we're engineering the future. Our team is driven by an unyielding commitment to innovation, integrity, and collaboration, tackling some of the most significant challenges in science, security, and sustainability. If you're passionate about making a real impact and want to be part of a community that values ethical excellence, this is the place where your ambition can thrive. Here, we believe that success comes from continuously pushing boundaries and working together to deliver on our promises. We embrace challenges with confidence and are dedicated to creating a secure and vibrant future for all. We’ll inspire and empower you to deliver your best work so you can evolve, grow and succeed – today and into tomorrow. We offer an exciting range of opportunities to develop your career within a supportive team who always strive to do the right thing for our people, clients and communities. People are our greatest asset, and we offer a competitive package to retain and attract the best talent. In addition to the benefits you’d expect, UK employees also receive free single medical cover and digital GP service, family-friendly benefits such as enhanced parental leave pay and free membership of employee assistance and parental programmes, plus reimbursement towards relevant professional development and memberships. Work-life balance and flexibility is a key focus area for us. We’re happy to discuss hybrid, part-time and flexible working hours, patterns and locations to suit you and our business. About the Opportunity Amentum is the Design and Engineering partner for Sellafield under the PPP (Programme and Project Partners). This is a 20-year arrangement to deliver ~£7bn of major projects. We are looking to recruit high value expertise from across regulated and comparable sectors to work in a collaborative environment. PPP is delivering major projects, site wide improvements and provision of supporting services. The Project To support the delivery of the SRP Project, we are seeking a Senior Control and Instrumentation Engineer to join the team. Responsibilities of this position are to work within the CE&I design team to deliver the control and instrumentation design for SRP’s piped services systems. The SRP Project is currently in the Construction phase which incorporates procurement, manufacture, works test, installation, and commissioning. This role is required to provide both design support activities to the supply chain, along with completion of outstanding design scope from earlier project phases.

Job Responsibility

  • Provide design support to procurement, manufacture, and installation teams
  • Management of CE&I design configuration baseline in response to developing project requirements and design information from the supply chain
  • Producing, checking and reviewing CE&I design deliverables to programme deadlines and to appropriate relevant standards, codes, and regulations
  • Working with the supply chain, supporting design aspects of contracts in ensuring suppliers meet client Engineering Standards, responding to Technical Queries, supporting production of test specification and attendance at Works Acceptance Testing at supplier facilities
  • Integrate and coordinate CE&I systems into the wider SRP Plant, via Building Interface Modelling (BIM)
  • Support the project Commissioning team activities
  • Responsibility for ensuring CE&I design intent is aligned to safety case requirements (nuclear and conventional) and ensuring all functional requirements are met, ensuring Validation and Verification is adequately managed

Requirements

  • Excellent communication skills
  • BEng/MEng degree or HND/HNC in a relevant field, or demonstrable equivalent experience
  • Professionally registered or working towards professional registration with a recognised engineering institution (e.g. IET, InstMC)
  • Demonstrable experience in a similar role

Nice to have

Previous Nuclear experience

What we offer

  • Free single medical cover and digital GP service
  • Enhanced parental leave pay
  • Free membership of employee assistance and parental programmes
  • Reimbursement towards relevant professional development and memberships

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