Accounts Payable Assistant

  • Morgan McKinley (Milton Keynes)
  • Wantage, Oxfordshire
  • Jan 09, 2026
Seasonal Sales & Marketing

Job Description

Interim Accounts Payable Specialist

Duration: 3 months

Start: ASAP

Location: 5 Days on site

Rate: 15- 18 per hour (equivalent up to 36k salary)

Engagement: Interim / hourly rate

Overview

We are seeking a strong Interim Accounts Payable professional to support a high-volume AP function during a period of system challenges and transition. This role is hands-on and operational, suited to an experienced AP specialist rather than a junior finance assistant.

Key Responsibilities

  • Processing approximately 1,000 invoices per month across two entities (technology and commercial/business).
  • Managing high-volume manual invoice processing due to system integration issues.
  • Reviewing invoices routed through Medius (automation tool) and ensuring accuracy.
  • Manual coding and matching of invoices.
  • Resolving discrepancies where invoices are not flowing correctly between systems.
  • Liaising with Procurement via email to obtain margin and invoice detail.
  • Supporting BAU AP activity during team change

Systems & Processes

  • Invoices enter Medius, but automation is not functioning as expected.
  • Medius does not currently speak to D365, resulting in manual intervention.
  • Systems experience is not essential - strong AP capability is the priority.

Candidate Profile

  • Proven experience in high-volume Accounts Payable roles.
  • Comfortable working in manual, process-heavy environments.
  • Strong attention to detail with solid invoice coding and matching experience.
  • Resilient, proactive, and able to hit the ground running.
  • Not suitable for junior Accounts Assistants - this role requires a robust AP professional.

Additional Information

  • Immediate requirement - interviews taking place ASAP.