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.

About the Opportunity

Amentum are looking for an expert in Capital Cost Estimating with full EPC delivery experience to lead on a double digit Billion $ Programme. The successful candidate will be passionate about Estimating and have a strong technical capability as well as a proven track record of leading Estimating teams on Mega Projects. Key Responsibilities:

Leadership & Strategy

• Develop and implement Estimating standards/ requirements, plans and strategies, ensuring alignment with industry standards and client requirements.

• Implement rigorous review and approval processes for all estimates.

• Lead and mentor a team of estimators, fostering a culture of accuracy, accountability, and continuous improvement.

• Serve as the primary point of contact for all estimating matters with internal and external stakeholders.

Estimating & Cost Management

• Oversee the preparation of Class 1–5 estimates throughout project lifecycles and to support Business cases and capital raises.

• Full ownership of the Basis of Estimate and all Estimates produced on the Programme

• Ensure estimates reflect current market conditions, project scope, schedule, and risk profile.

• Validate and benchmark estimates against historical data and industry norms.

• Present estimates and cost analysis to executive leadership, clients, and partners. 

• Collaborate with procurement and contracts teams to ensure alignment between estimates and bid evaluations.

• Integrate risk analysis and contingency planning into estimates.

• Where necessary, develop independent estimates to provide Contract ROs the information to challenge the supplier offer. Where necessary, provide support the contract RO to challenge and negotiate a more appropriate value.

Here's What You'll Need 

• Certification by Association for the Advancement of Cost Engineering (AACE) or the International Cost Engineering Council (ICEC) or equivalent

• Experience in TIC/ CAPEX Estimating

• Demonstrable competence in the use of estimating software

• Access to cost reference information norms from a wide range of industries 

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.