Cost Engineer

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 team who always strive to do the right thing for our people, clients and communities. 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 

We are recruiting for a Cost Engineer to support key project deliverables across our nuclear project portfolio and this is where you come in. If you’re familiar with project delivery, you’ll know that they have plenty of moving parts and complexity, which is why you’ll be working alongside our Subject Matter Experts, Operations Managers and with our Framework Service team too. 

People are at the heart of everything we do 

Centre to the success of the role will be your people skills, building effective relationships and interacting with multiple internal and external stakeholders in multiple locations.

You’ll also work closely with colleagues to support activities that offer the best service to the client.  Through your interactions, you’ll be able to gather useful intelligence on client needs and work with the team to deliver innovative solutions. 

You’ll utilise your communication and engagement skills to achieve client, people and business outcomes, working with your team and peers that are based in different locations across the UK. We’re continuously evolving and growing the business, so there’s plenty of opportunity to evolve and grow your skills and career too.

• The position is accountable to the Project Controls Manager and are responsible to develop & manage framework project to incorporate risk, change, resource requirements and cost in accordance with Amentum requirements and Standards.
• The role will be responsible for leading the cost management activities for our major frameworks for our key clients. This role has no direct reports.
• The role can be based at any of our UK Amentum Office and may require from time to time, business travel to UK sites/stations. Flexible working arrangements between office and home may be possible.
• Everyone working in our team will have a proven track record of working within highly regulated environments with high safety standards and culture.
• Good communication and organisational skills are a must with the ability to develop relationships and maintain effective networks and be results-focused with a team-centred approach.

Here's What You'll Need 

• Minimum of HNC/HND ideally in an Engineering discipline or relevant experience.
• Good working knowledge of financial systems.
• Breadth of experience across whole project and programme lifecycle. e.g. Engineering, Procurement, Construction, Installation/Commissioning.
• Understand the inter-relationship between time cost and commercial aspects of the project life cycle.
• The ability to reconcile cost information as it applies to the programmes of work.
• Proficient in the use of estimating, scheduling, programming and risk tools.
• Ability to communicate well at all levels of management, produce monthly reports, to an agreed reporting cycle, to provision of intelligent information.
• Capture project budgetary costs and resources in the plan to determine time phasing of expenditure and the total project budget.
• Able to establish robust Work Breakdown and Project Control Structures in terms of project scope, in accordance with Investment Delivery processes, templates and Procedures.
• Experienced to challenge as necessary to ensure compatibility and compliance. 
• Knowledge to maintain and control project baselines in line with company procedures and guidance.
• Ability to communicate well at all levels of management and can produce monthly reports, to an agreed reporting cycle, through the provision of intelligent information and analysis.

​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

       

Compensation Details:

59500

       

The compensation range or hourly rate listed for this position is provided as a good-faith estimate of what the company intends to offer for this role at the time this posting was issued. Actual compensation may vary based on factors such as job responsibilities, education, experience, skills, internal equity, market data, applicable collective bargaining agreements, and relevant laws.

 

Benefits Overview:

Our health and welfare benefits are designed to support you and your priorities. Offerings include:

• Health, dental, and vision insurance

• Paid time off and holidays

• Retirement benefits (including 401(k) matching)

• Educational reimbursement

• Parental leave

• Employee stock purchase plan

• Tax-saving options

• Disability and life insurance

• Pet insurance

 

Note: Benefits may vary based on employment type, location, and applicable agreements. Positions governed by a Collective Bargaining Agreement (CBA), the McNamara-O'Hara Service Contract Act (SCA), or other employment contracts may include different provisions/benefits.

       

Original Posting:

03/10/2026 - Until Filled

Amentum anticipates this job requisition will remain open for at least three days, with a closing date no earlier than three days after the original posting. This timeline may change based on business needs.

       

Amentum is proud to be an Equal Opportunity Employer. Our hiring practices provide equal opportunity for employment without regard to race, sex, sexual orientation, pregnancy (including pregnancy, childbirth, breastfeeding, or medical conditions related to pregnancy, childbirth, or breastfeeding), age, ancestry, United States military or veteran status, color, religion, creed,  marital or domestic partner status, medical condition, genetic information, national origin, citizenship status, low-income status, or mental or physical disability so long as the essential functions of the job can be performed with or without reasonable accommodation, or any other protected category under federal, state, or local law. Learn more about your rights under Federal laws and supplemental language at Labor Laws Posters.