Accounts Payable Assistant

We are looking for an Accounts Payable Assistant to join our Finance team in Long Hanborough, Oxfordshire. This hands‑on role will ensure supplier invoices, expenses and payments are processed accurately and on time, working closely with colleagues across the business. The position offers full‑time and part‑time arrangements.

• Hybrid working: A mix of working from home and from our Long Hanborough office
• Flexible working options: Full‑time or part‑time arrangements for this role
• Comprehensive benefits package: Health cover, income protection, company sickness pay and death‑in‑service benefit
• Wellbeing support: Employee Assistance Programme and an annual paid Mental Wellness Day
• Volunteering time: Paid time off to support causes important to you
• Global exposure: Opportunities to collaborate with colleagues across Europe and Africa

• Process supplier invoices, including accurate coding and matching to purchase orders
• Manage the accounts payable shared inbox and respond to supplier and internal queries
• Reconcile supplier statements and investigate outstanding balances or discrepancies
• Support the preparation and processing of regular payment runs
• Review and process employee expense claims in line with company policy
• Liaise with internal departments to resolve invoice, PO and payment‑related queries
• Maintain accurate and up‑to‑date accounts payable records and supporting documentation
• Support month‑end accounts payable activities, including reconciliations and reporting
• Ensure compliance with internal controls, policies and procedures
• Carry out general finance administration and ad lib tasks as required

• Previous experience in an Accounts Payable or transactional finance role
• Experience processing invoices and managing supplier queries
• Good attention to detail and a strong focus on accuracy
• Strong organisational and time‑management skills
• Ability to manage multiple tasks and meet deadlines
• Clear and professional communication skills
• Confident user of Microsoft Excel and other Microsoft Office applications
• Experience using finance or ERP systems (e.g. Oracle) is advantageous
• Experience working with multiple entities or international suppliers is beneficial

NSF is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to, among other things, race, colour, religion, sex, sexual orientation, gender identity, national origin, age, status as a protected veteran, or disability.