Project Accountant

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 are committed to advancing energy initiatives providing expertise in renewable energy development, energy efficiency, and resilience projects. By leveraging advanced technologies and a deep understanding of regulatory frameworks, Amentum helps clients achieve environmental stewardship and energy sustainability, contributing to a safer, cleaner future while supporting mission-critical operations.

As part of our ongoing growth across our key sectors we are recruiting for a Project Accountant to support our activities on the Litmus Joint Venture. In this role you will administer the Litmus JV account, which will include various formal accounting submissions and the usual financial audit requirements. Ideally you will be familiar with Sage accounting software as that is what utilised on the project.

The role will support hybrid working and can be based from any of our UK office locations in Knutsford, Warrington, Bristol, Gloucester, Newcastle or Glasgow.

• Proficient in the use of SAGE software
• Ledger experience and VAT return experience
• Familiar with Banking applications
• Experience with financial statements and transactions
• Hands on accounting experience
• Financial forecasting and budgeting experience
• Experience of consolidating data for invoicing and billing.

• AAT Level 3 / 4 or qualified by experience
• Attention to detail
• Good time management discipline to meet strict reporting and submission deadlines
• Pro‑active communicator who can work across organisations & stakeholders
• Comfortable leading across a JV partnership with minimal supervision
• Proactive approach to streamline and improve workflows.

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 and diversity in everything we do. We know that if we are inclusive, we’re more connected, and if we are diverse, 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 centered on inclusion and diversity.

We partner with VERCIDA to help us attract and retain diverse talent. For greater online accessibility, please visit  to view and access our roles. As a Disability Confident employer, we will interview all disabled applicants who meet…