Accounts Payable Assistant (Full-Time Or Part-Time

Are you experienced in Accounts Payable and looking for a role where you can make a real impact in a supportive, global organisation?

We are looking for an Accounts Payable Assistant to join our Finance team in Long Hanborough, Oxfordshire. This is a hands-on role where you’ll play a key part in ensuring supplier invoices, expenses and payments are processed accurately and on time, while working closely with colleagues across the business.

This role is open to both full‑time and part‑time working arrangements, and we actively encourage applications from candidates seeking flexible or reduced hours.

What We Offer

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Hybrid working

A mix of working from home and from our Long Hanborough office

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Flexible working options

With openness to both full‑time and part‑time arrangements for this role

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Comprehensive benefits package

Including health cover, income protection, company sick pay and death‑in‑service benefit

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Wellbeing support

Access to our Employee Assistance Programme and an annual paid Mental Wellness Day

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Volunteering time

Paid time off to support causes that are important to you

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Global exposure

Opportunities to collaborate with colleagues across Europe and Africa

Principal accountabilities will include, but are not limited to

• 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 hoc tasks as required

QUALIFICATIONS

• 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

Our Culture

At NSF, our mission is to improve human and planet health. Our culture is rooted in four central values

• Do the Right Thing,
• Treat People Well
• Relentlessly Pursue Excellence
• We are one NSF.

These principles drive everything we do - from client service to internal collaboration.

Apply now and send us your CV and cover letter. Come join our team, we look forward to hearing from you!