Amentum - Hybrid work

Senior Physicist Consultant sought for nuclear safety and technical assessment of submarine propulsion and civil reactor systems. Based in Risley, UK, this full-time role requires expertise in criticality safety, radiation shielding, and reactor physics analysis. You will deliver independent safe...

Join Amentum as a Thermal Hydraulicist in Risley, UK, and drive innovation in nuclear safety. You will provide independent technical assessments for naval propulsion systems, leveraging expertise in Pressurised Water Reactor calculations. Ideal candidates have a relevant degree and experience in ...

Senior Civil & Structural Engineer sought by Amentum to lead nuclear and energy projects in Bristol or Risley, UK. You will drive design solutions across the full lifecycle, from concept to construction, for new build, life extension, and defueling. Ideal candidates are Chartered or near-Chartere...

Amentum seeks a **QA/Quality Engineer** in **Reading, UK** to drive excellence on Civil Nuclear and Defence projects. You will manage ITP compliance, supply chain quality, and lead ISO 9001 audits. Ideal candidates bring M&E/Welding/Construction experience and auditor qualifications. Join a missi...

Civil / FIRAS Inspector needed in Sellafield, UK, to ensure quality compliance through inspection, testing, and documentation review. Must hold FIRAS certification in passive fire protection and a Fire Door Inspection Scheme diploma. Key duties include reviewing Lifetime Records, producing ITPs a...

Construction Mechanical Engineer needed for a key role at Sellafield, UK. You will provide technical and planning support, ensuring safe, compliant delivery of construction works. Ideal for candidates with a time-served apprenticeship and 2+ years in a regulated industry. Benefits include free me...

Amentum seeks a Cybersecurity Manager near Riverside, CA for a future DoD contract. This role requires a TOP SECRET clearance, a Bachelor’s in IT, and 7+ years of DoD IT experience with 5 years in management. You will lead cybersecurity strategy, risk evaluation, and program development per DoD s...

Amentum seeks a Program Manager near Riverside, CA, for a future large-scale DoD contract. This role requires a Bachelor’s in IT, 7+ years managing DoD efforts, and an active TOP SECRET clearance. You will direct Task Order functions, develop strategies, and improve efficiency across diverse team...

Principal Mechanical Engineer sought for Risley, UK, to lead technical design on heavy infrastructure and nuclear projects. You’ll deliver solutions using American codes, CAD (AutoCAD, Inventor), and P&IDs, while engaging with regulators like the ONR. Ideal candidates are Chartered (IMechE) with ...