Accounts Payable & Expenses Administrator

UK CITIZENSHIP REQUIRED FOR THIS POSITION: YesRELOCATION ASSISTANCE: No relocation assistance availableTRAVEL: Yes, 10% of the TimeWhat's your possible?
At Northrop Grumman UK, you are part of a team driving innovation where it matters most - solving tomorrow's challenges and shaping the technology solutions of the future. It's what we call Defining Possible.
This mindset goes beyond our customer solutions; it's the foundation for your career development and the impact we have within the community.
Salary:£26,000 - £29,000
About the Opportunity
This is more than just a job; it's a mission.
We are looking for an Accounts Payable & Expenses Administrator to join our fast-paced Accounts Payable, Receivable and Expenses team within the NSS Business Management function. You'll play a vital role in ensuring our suppliers, partners and employees are paid accurately and on time, and that financial processes run smoothly across the business.
You'll be working alongside teams that support our UK Cyber & Intelligence and UK Defence businesses - mission-critical environments delivering secure, modern software and systems to national customers. Every detail you manage contributes to keeping these essential programmes running.
Role Responsibilities
• Process multi-currency purchase invoices with and without purchase orders, ensuring approvals are in place and aligned to internal policies.
• Process intercompany invoices, direct debits and settlements.
• Maintain strong communication with vendors and colleagues to resolve invoice queries quickly and effectively.
• Investigate discrepancies, update file notes and ensure records are accurate and complete.
• Execute payment runs and regularly reconcile supplier accounts.
• Manage a high-volume inbox to support daily operational needs.
• Review and approve employee expenses in line with policy and HMRC guidelines.
• Provide guidance on VAT, business travel requirements and expense processes.
About You - Skills and Experience
Essential:
• Experience using SAP or similar financial systems.
• Proven experience liaising with suppliers or customers to support payment processes.