Full job descriptionBusiness 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