Interim Accounts Payable Assistant | Global Consumer Brand

Harmonic Finance™ | Certified B Corp; Greater London; Hybrid; GBP 32,000 - 42,000; Full time

Job summary

Harmonic Finance™ | Certified B Corp in West London is seeking two interim Accounts Payable Assistants for a hybrid, 3 days in the office arrangement. The role focuses on clearing a backlog post-ERP rollout, with end-to-end AP responsibilities and training on the new systems.

You will work in a busy team, processing supplier invoices, expenses, and reconciliations, while applying solid COA-driven coding and ensuring timely payment runs. Immediate start preferred.

Qualifications

• Hands-on, high-volume AP processing experience.
• Understanding of end-to-end purchase-to-pay cycle.
• Confident GL coding against COA.

Responsibilities

• Process a high volume of supplier invoices and clear backlog.
• Code invoices to GL accounts manually.
• Handle supplier reconciliations and payment runs.
• Process factory-side transactions and landed costs.
• Review employee expense claims and supplier queries.

Skills

Accounts payable

End-to-end PO/AP cycle

GL coding

Supplier reconciliations

Tools

Microsoft Dynamics 365

Concur

AP automation(Medius)

Job description

Interim Accounts Payable Assistant | Global Consumer Brand | West London / Hybrid

The Client

Harmonic is delighted to be partnering with a globally recognised consumer brand, known for its distinctive products and loyal international following. The business is growing quickly, the wider finance team has expanded significantly this year, and a new ERP and AP automation platform has recently gone live. They are now looking for two experienced Accounts Payable Assistants to join a friendly, well-established team and help clear the backlog that has built up through the implementation.

The Role

Reporting into the Accounts Payable Manager, you will join an AP team of nine, working across both the factory (stock) and non-factory sides of the purchase ledger. This is a hands-on, high-volume transactional role: the priority from day one is processing and coding invoices accurately to bring the backlog down, alongside employee expenses, supplier reconciliations and payment runs. You will be trained on the new systems and internal processes, but not on AP fundamentals, so you will need to arrive knowing the end-to-end cycle and what to check when an invoice lands. GL coding is manual while the new system beds in, so confident chart of accounts knowledge is important. Both roles are 6-month temporary contracts, with the possibility of a permanent role for strong performers as the business grows, though this cannot be guaranteed at this stage.

Key Responsibilities

• Process a high volume of supplier invoices accurately and to deadline, helping to clear the current backlog.
• Code invoices manually to the correct general ledger accounts.
• Process factory-side transactions, including purchase orders, voyages and landed costs.
• Process and review employee expense claims.
• Reconcile supplier statements and resolve discrepancies directly with suppliers.
• Prepare and support regular payment runs.
• Handle supplier and internal queries, building good working relationships on both sides.
• Work within the new ERP and AP automation workflows as they bed in.
• Solid, hands-on accounts payable experience covering the end-to-end purchase-to-pay cycle.
• Proven experience of high-volume invoice processing.
• Confident GL coding against a chart of accounts.
• Experience of supplier reconciliations and payment runs.
• Able to hit the ground running with minimal training, and available to start immediately.
• Works well as part of a large, close-knit team.
• Experience using Microsoft Dynamics 365.
• Experience using Concur for employee expenses.
• Experience with AP automation software (Medius or similar).
• Factory or stock-side AP experience in a consumer goods or retail business.

Contract: 6-month contract, with the possibility of a permanent role

Location: West London, hybrid, minimum 3 days per week in the office.

Start Date: ASAP, immediate availability preferred

At Harmonic, we are dedicated to fostering an inclusive and equitable workplace. We actively welcome applications from individuals of all backgrounds and assure you that every candidate will be thoughtfully considered for the roles we represent, without regard to race, religion, gender expression, disability, or sexual orientation.