Accounts Payable Specialist

Trinity Resource SolutionsSloughreedpublished 09/24/2026

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.