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.

Key Responsibilities

• 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

Required Skills & Experience (Must-Have)

• 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

Desirable Experience

• 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