Amentum - United Kingdom

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 ...

Senior Mechanical Engineer sought for a key role in the UK nuclear sector, supporting fleet transformation and SMR development. You will deliver technical solutions, manage design deliverables, and engage with regulators. Requires a Mechanical Engineering degree, chartered status or progress, and...

Join Amentum in Bristol as a Quantity Surveyor to drive commercial success on NEC3 contracts. We seek a degree-qualified professional with construction contract experience, strong organisational skills, and UK security clearance eligibility. Enjoy hybrid working, free medical cover, enhanced pare...

Principal Solutions Architect sought to design and govern integrated digital project controls environments for major capital programmes in Glasgow. This domain-specialised role requires deep expertise in EPPM platforms (EcoSys, Primavera P6/Unifier, Aconex) and core PMO processes. You will define...

Senior Quantity Surveyor sought by Amentum at Sellafield, UK, to drive cost estimation, contract administration (NEC3/4), and procurement on decommissioning projects. Requires MRICS or equivalent, degree-level qualification, and proven QS experience in highly regulated engineering environments. L...

Seeking a skilled Quantity Surveyor to join decommissioning projects at Sellafield, UK. You will support cost estimation, contract administration (NEC3/4), and commercial reporting within a highly regulated environment. Ideal candidates have QS experience, RICS qualifications or equivalent, and s...

Seeking an experienced **Project Controls Manager** to deliver complex defence programmes from **Bristol**. You will oversee cost control, planning, risk, and governance for a Tier 1 client. Requires deep Defence industry knowledge, P3M expertise, and autonomous consultancy skills. Benefits inclu...

Construction Delivery Lead overseeing Tier 1 contractors on major infrastructure projects in Bristol, UK. Requires expertise in strategic planning, resource allocation, and CDM regulations, with NEBOSH/SMSTS qualifications. Manage and develop Construction Delivery Managers while ensuring top-tier...

BIM Manager sought for a major Nuclear Powerplant project in Bristol, UK. You will lead the CALM programme, defining the PLM architecture using Dassault 3Dx tools. This role requires strong configuration management experience and the ability to coordinate a multi-disciplinary team of 20. Benefits...

Seeking an experienced Pipefitter for industrial projects at Sellafield, UK. You will install, fabricate, and repair piping systems using technical drawings and various materials. Requires NVQ Level 3, CSCS/CCNSG card, and strong knowledge of piping installation. Benefits include free medical cov...

Seeking a skilled Mechanical Fitter for a permanent role in Sellafield, UK. You will assemble, maintain, and repair mechanical systems using technical drawings. Requires NVQ Level 3, CCNSG Safety Passport, and proven fitting experience. Benefits include free medical cover, enhanced parental leave...

Amentum seeks an Architectural Technologist for a landmark 20-year, £7bn nuclear programme in Risley, UK. You will deliver design solutions through all RIBA stages, using Revit and Navisworks, while coordinating teams on complex nuclear projects. Ideal candidates hold a Master’s in Architecture o...