Principal Mechanical Engineer

About the Opportunity

We are recruiting a Principal Mechanical Engineer to join our Energy business, supporting a key client’s UK nuclear fleet and new small modular reactor developers. This role will be based at one of our Energy offices (Newcastle, Warrington, Glasgow, Gloucester, Stockton, Bristol or Knutsford).

• Take ownership of technical challenges, develop a strategy and implement solutions through engagement with internal and external stakeholders.
• Deliver technical solutions (analysis and design).
• Produce and review design deliverables such as assumption notes, technical specifications and calculation notes, methodology plans, etc.
• Work with international SMR developers to pass through the Office of Nuclear Regulation’s Generic Design Assessment process.
• Review and justify design decisions to the ONR.
• Fulfil and take ownership of CDM responsibilities.

• External MEng, MSc, BEng or BSc in Mechanical Engineering or equivalent.
• Experience in design of heavy infrastructure projects, nuclear or regulated industry.
• Chartered with relevant institution (e.g., IMechE, MIET) or working towards chartership.
• Ability to work within a design team and collaborate in multi-disciplinary teams.
• Experience in design and/or construction of engineering solutions using American codes.
• Experience designing pumps, valves, heat exchangers, tanks, filters or HVAC equipment and authoring datasheets.
• Experience with CAD software:
  AutoCAD, Inventor, Creo or Solidworks.
• Experience authoring technical drawings to BS EN 8888 and Piping & Instrumentation Diagrams.
• Familiar with safety cases in industrial environments.
• Experience with MATLAB and MathCAD beneficial.
• Experience writing test plans for Equipment Qualification.
• Knowledge and understanding of UK Nuclear Regulatory process in mechanical engineering desirable.

Newcastle, Warrington, Glasgow, Gloucester, Stockton, Bristol, or Knutsford – the role will be based at one of our Energy offices.

Amentum is an equal opportunity employer. We welcome applicants from all backgrounds and provide reasonable accommodations to meet the needs of all applicants. All hiring decisions are made without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, or other protected status.