Business Analyst - AP Invoice Processing Transformation

Business Analyst (SME, Testing) - AP Invoice Processing Transformation (Basware) - Hybrid

Daily rate: £350 - £450 (inside IR35)

London (3 days on-site per week)

Contract role - Immediate start preferred

My client is looking for an experienced Business Analyst with strong hands‑on Accounts Payable (AP) invoice processing expertise to join a high-priority, GPO‑led transformation programme.

This role requires a proactive, detail‑oriented individual who can quickly immerse themselves in existing test artefacts, take ownership of end‑to‑end testing, identify defects, and document system and process behaviour. You will also act as a Subject Matter Expert (SME) to support operational training and handover.

You will work closely with GPO leadership, SMEs, and BPO/testing teams to ensure robust testing coverage and readiness for go‑live.

• Own and execute end‑to‑end invoice processing testing, covering:
  • Invoice capture (OCR)
  • Validation
  • Approval workflows
  • Payment processing
• Review and enhance existing test scripts; design new test cases where gaps are identified
• Independently investigate exceptions and defects, documenting clear findings and driving resolution
• Produce high‑quality process documentation, including:
  • End‑to‑end flows
  • System behaviours
  • Exception scenarios
  • Known issues
• Collaborate with GPO leads, SMEs, and BPO/test teams to ensure consistent understanding and coverage
• Act as an SME for AP invoice processing, supporting:
  • Knowledge transfer
  • Operational readiness
  • Training materials
• Provide clear, actionable feedback to stakeholders
• Support go‑live readiness activities
• Attend regular stand‑ups and provide concise status updates

• Proven hands‑on experience in Accounts Payable invoice processing (operations or transformation programmes)
• Strong Business Analyst skillset, including:
  • Requirements capture
  • Test script creation & execution
  • Process documentation
• Experience testing:
  • Invoice capture/OCR tools
  • Downstream AP or ERP systems
• Ability to work independently, take ownership, and drive progress without constant oversight
• Strong analytical mindset with curiosity to:
  • Investigate end‑to‑end processes
  • Identify edge cases and exceptions
• Excellent communication skills:
  • Clear defect reporting
  • Structured documentation
• Comfortable working on‑site in London (3 days per week)
• Must have right to work in the UK

• Experience with SAP or other ERP AP modules
• Background in GPO‑led or shared services transformation programmes
• Experience working with third‑party BPO providers or offshore testing teams

Rates depend on experience and client requirements