Project Manager - TOC Assurance, Heavy Civils

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.

About the Opportunity

Nuclear Power Programmes has been formed with the vision to support positive change and help shape the future of Nuclear Power. Operational throughout the UK and across continental Europe, we are seeking to expand our team on a variety of nuclear projects, which range in technologies and that find themselves at different stages of their development. To do this, we are seeking to continuously employ talented individuals to join our diverse team that are excited about nuclear projects and are committed to Net Zero, and Energy Security.

In both client facing and internal roles we are delivering major programme and project management capabilities throughout the project lifecycle. We are driving to deliver safe, high quality and to time solutions by thinking innovatively and working collaboratively.

Role Summary

The Project Manager (PM) - TOC Assurance will support the assurance and validation of Target Outturn Cost (TOC) submissions across major heavy civils packages at Sizewell C. This role focuses on detailed commercial and technical review of cost build-ups, procurement strategies, and pre-construction planning to ensure submissions are robust and aligned with programme objectives.

Key Responsibilities

• Review TOC submissions, including cost build-ups, assumptions, pricing methodologies, and risk allowances.
• Identify cost, commercial, and delivery risks, opportunities, and inconsistencies within contractor submissions.
• Support procurement activities through tender evaluation, scope and BoQ reviews, contractor clarifications, and commercial discussions.
• Ensure alignment between procurement outcomes and TOC development.
• Contribute to cost benchmarking, validation exercises, and cost assurance methodologies.
• Monitor commercial performance, cost trends, and emerging risks.
• Collaborate with commercial, engineering, and delivery teams, supporting workshops, assurance reviews, and governance processes.
• Provide clear analysis, reporting, and recommendations to senior stakeholders.

Here's What You'll Need

• Experience in heavy civils or infrastructure projects.
• Strong background in quantity surveying, estimating/pre-construction, and commercial management.
• Experience with contractors, consultancies, and target cost contracting environments.
• Strong knowledge of cost planning, estimating, and infrastructure delivery.
• Ability to analyse and challenge complex cost data and submissions.
• Excellent commercial judgement, analytical skills, communication, and attention to detail.
• Degree-qualified in Quantity Surveying, Commercial Management, Civil Engineering, or similar.
• Professional accreditation (e.g., RICS) desirable.

Our Culture

Our values stand on a foundation of safety, integrity, inclusion and diversity. We put people at the heart of our business, and we genuinely believe that we all succeed by supporting one another through our culture of caring. We value positive mental health and a sense of belonging for all employees.

We aim to embed inclusion in everything we do. We know that if we are inclusive, we're more connected, and we're more creative. We accept people for who they are, regardless of age, disability, gender identity, gender expression, marital status, mental health, race, faith or belief, sexual orientation, socioeconomic background, and whether you're pregnant or on family leave. This is reflected in our wide range of Global Employee Networks.

We partner with VERCIDA to help us attract and retain diverse talent. 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.

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