Cost & Finance Assistant

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.

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.

The Opportunity
Amentum is the Design and Engineering partner for Sellafield under the PPP (Programme and Project Partners). This is a 20-year arrangement to deliver ~£7bn of major projects. We are looking to recruit high value expertise from across regulated and comparable sectors to work in a collaborative environment. PPP is delivering major projects, site wide improvements and provision of supporting services.

PPP is an exciting model to work in with Four world class organisations who have come together as one team, to create a clean and safe environment for future generations. The programme arrangement is set to deliver ~£7bn worth of major projects creating a lasting legacy through the long-term partnerships.

We are continually recruiting high value expertise from across regulated and comparable sectors to work in a collaborative environment. PPP is continually delivering major projects over the next couple of decades, so there are lots of opportunities to develop your careers with a leading multinational company that put people first.

The Role

As a Cost and Finance Assistant some of your responsibilities could include:

• Assisting in Employee approval process, help with onboarding of new staff and liaise with Resource team

• Management of project records, regular review of transactions and timely correction of errors in bookings

• Assist in raising invoices in line with approved payment certificates

•  Assist with preparation of annual statement and underpinning reconciliations

• Ensure accurate and timely capture and allocation of labour and non-labour costs and liaise with relevant parties if necessary

•  Work with Shared Services on resolution of Accounts Payable, HR issues

As a Cost and Finance Assistant you will already:

• Degree/qualification in relevant technical or business discipline or can be substituted by relevant experience.

• Good Excel skills and ability to work with spreadsheets and formulae

•  Accounting/payroll/cost experience is an advantage

• Preferably good knowledge of current processes (Finance, HR, project controls)

• Knowledge of Computerised cost management and reporting systems preferred (Costpoint)

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.