NSA Contract Project Manager - Civils

Join the Sizewell C (SZC) project-one of the UK's largest low-carbon megaprojects. The role manages delivery of the Civils scope within the Nuclear Services Agreement (NSA), ensuring the contractor delivers engineering and design services on time, to budget, and aligned with project requirements. You will oversee the Civils portion of the NSA contract, act as the main point of contact between SZC and the contractor, and ensure technical deliverables meet schedule, cost, and quality expectations. Strong links with the Civils Delivery Programme are essential.,

• Oversee execution of NSA services for Civils scope.
• Manage Early Warnings, risks, Compensation Events, and Variations.
• Provide challenge, cost insight, and approval for additional scope or Task Orders.
• Escalate issues when required.
• Own end-to-end Civils contract scope.
• Ensure deliverables meet replication/configuration rules.
• Secure input and oversight from SZC teams (e.g., Review & Acceptance).
• Maintain consistency across engineering and programme packages.
• Build strong relationships with SZC Engineering Integration, Contractor discipline leads, and internal NSA teams.
• Represent NSA in meetings and reporting forums.
• Work closely with Programme Engineering Managers and Nuclear Services teams.
• Track and report financial, technical, and schedule metrics.
• Capture impacts to budget and delivery baseline.
• Contribute to monthly reporting on PI scope.
  Experience on major infrastructure projects (nuclear preferred).
• Strong contract management and technical governance experience.
• Ability to resolve complex issues and manage ambiguity.
• Excellent communication, organisation, and stakeholder skills.
• Able to manage multiple workstreams and work independently.
• Strong MS Office skills; proactive attitude.
Desirable
• PMI or similar project management qualification.
• Knowledge of nuclear standards, EPR design, and civil engineering.
• Understanding of commercial aspects of major projects.
• French language or HPC project experience.
• Experience in tendering for design/manufacturing/installation contracts.
• Chartered or working towards chartership.
• Continuous improvement mindset.
  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.
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.