Accounts Payable Specialist in Slough

• Hybrid

Accounts Payable Controller

We are looking for an experienced Accounts Payable Specialist to take full ownership of the end-to-end accounts payable process within a busy finance function.
This is a stand-alone AP role, ideal for someone who is confident managing the full invoice-to-payment lifecycle independently, from supplier onboarding and invoice processing through to payment runs, reconciliations and query resolution.
A strong understanding of GRNI (Goods Received Not Invoiced) is essential, including the ability to review aged items, investigate discrepancies and ensure balances are accurately cleared.

Key Responsibilities

• Take full ownership of the end-to-end accounts payable process, ensuring invoices are processed accurately and paid on time.
• Process a high volume of PO and non-PO invoices, including coding, matching, approvals and posting to the ERP system.
• Manage supplier queries and invoice discrepancies, working with internal teams to resolve price, quantity and matching issues.
• Maintain accurate records of supplier queries and ensure issues are followed up promptly.
• Carry out regular supplier statement reconciliations and investigate outstanding items.
• Take ownership of GRNI reconciliation, ensuring items are reviewed and cleared within agreed timescales and that aged balances are investigated.
• Prepare and process payment runs, including uploading payment files to banking platforms and posting payments.
• Ensure all payments are processed in line with internal controls and authorisation procedures.
• Manage supplier master data, including new supplier set-up, bank detail verification, amendments and supplier deactivation.
• Ensure supplier onboarding and changes comply with appropriate due diligence and control procedures.
• Support month-end close, audits and other finance reporting requirements.
• Work closely with Finance, Supply Chain and operational teams to resolve issues and improve processes.
• Identify opportunities to improve AP processes through automation, ERP enhancements and process standardisation.
• Support system upgrades and testing, providing practical AP insight to improve efficiency and accuracy.

We are looking for someone who has:

• Proven experience working in Accounts Payable / Invoice-to-Pay, ideally within a high-volume environment.
• Experience working in a stand-alone AP position with full ownership of the process.
• A strong understanding of GRNI and reconciliation processes.
• Strong knowledge of PO matching, invoice processing and supplier statement reconciliations.
• Previous experience preparing payment runs and working with banking/payment platforms.
• Excellent attention to detail with a high level of accuracy.
• Strong Excel skills, including functions such as PivotTables and VLOOKUP/XLOOKUP.
• The ability to investigate discrepancies, solve problems and take ownership through to resolution.
• Excellent organisational and time-management skills, with the ability to manage competing priorities.
• Confidence working independently with minimal supervision.
• Strong communication skills and the ability to build effective relationships with internal stakeholders and suppliers.
• A proactive, adaptable and continuous-improvement mindset.

The Ideal Candidate
This role would suit an experienced AP professional who is comfortable being the go-to person for accounts payable, rather than someone who has only owned one part of the AP process.
If you have experience managing invoices from receipt through to payment, understand how GRNI should be monitored and cleared, and enjoy taking ownership of a busy AP function, we'd be keen to hear from you.