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 and diverse 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.
About the Opportunity
Amentum is a key delivery partner within the Decommissioning and Nuclear Waste Partners (DNWP) Framework, a major Sellafield programme worth up to £4.6 billion and running for up to 15 years. The framework is focused on safely accelerating decommissioning, remediation and high hazard risk reduction across one of the most complex nuclear sites in the world.
Our nuclear team supports the front end design, engineering, technical leadership and delivery expertise required across the DNWP portfolio. We are looking for individuals with high value expertise from across regulated and comparable sectors to who can work collaboratively, embrace new challenges and contribute to the mission of safely and efficiently delivering Sellafield’s decommissioning and nuclear waste objectives.
You'll provide Quantity Surveying support across nuclear decommissioning projects, contributing to effective cost management, contract administration, and commercial controls. The role supports the safe, compliant, and cost effective delivery of complex decommissioning programmes under supervision and established governance arrangements.
As a Quantity Surveyor, you will support Senior Quantity Surveyor and programme leads in the implementation of Contract Management Plans and in maintaining effective working relationships with the Client, Contractors, Subcontractors, Suppliers, and Service Providers for assigned contracts. This will include assisting with the upkeep of contract Risk Registers, attending risk reduction and project meetings, and supporting the administration of Early Warning Notices, Compensation Events, and CEMAR records. All contracts will be administered in accordance with the Amentum Management System and contract management procedures. You will work within defined processes to help ensure compliance with contractual terms and procedures. Key responsibilities will be:
Support subcontract engagement and commercial communications.
Assist with cost estimation, budgeting, and forecasting activities across decommissioning projects.
Support contract administration (e.g. NEC3/4), including change control, payment assessments, and final account preparation.
Contribute to procurement and tendering activities by providing accurate cost and commercial information.
Assist in monitoring and reporting of project financial performance, highlighting risks and opportunities to the commercial team.
Support compliance with regulatory and governance requirements, including NDA and ONR frameworks.
Work collaboratively with project teams, suppliers, and stakeholders to support commercial alignment.
Contribute to continuous improvement activities and lessons learned in cost and contract management.
Here's What You'll Need
Working towards a Degree in Quantity Surveying or equivalent experience in commercial /contract management
Membership of/commitment to or studying for Royal Institute of Chartered Surveyors (RICS) qualifications or other relevant equivalent professional qualification
Previous QS experience, where knowledge of engineering was a key attribute
Worked within a highly regulated and quality assured system where design and engineering was a major part of the role
Awareness of laws, regulations, processes and procedures appropriate to the area supported
Knowledge of NEC3 and NEC 4 contracts and public sector procurement regulations
Experience in cost management, contract administration, and commercial reporting
Excellent stakeholder engagement and communication skills
Must be proficient in MS Office applications – especially MS Excel.
Our Culture
Our values are built on a strong foundation of safety, integrity, and respect for every individual. People are at the heart of our mission, and we believe in supporting one another through a culture of care and collaboration.
We strive to create a workplace where everyone feels they belong and can thrive. Supporting mental wellbeing and fostering a sense of connection are essential to how we work.
When we embrace different perspectives and work together, we become more innovative, more agile, and more successful.
We partner with VERCIDA, for greater online accessibility please visit www.vercida.com to view and access our roles. As a Disability Confident employer, we will interview all disabled applicants who meet the minimum criteria for a vacancy. We welcome applications from candidates who are seeking flexible working and from those who may not meet all the listed requirements for a role.
If you require further support or reasonable adjustments with regards to the recruitment process (for example, you require the application form in a different format), please contact the team.
