System Transformation VAT Lead Buckinghamshire (2 days onsite / 3 days WFH) £475–525 per day (Umbrella) Inside IR35 6 months initially – part of a multi-year strategic transformation programme We are partnering with a major UK financial services organisation undergoing a large-scale, multi-year systems transformation. This is a key opportunity for an experienced VAT professional to take ownership of VAT workstreams within a complex SAP S/4HANA implementation. This role sits at the intersection of Tax, Finance and Technology, ensuring VAT compliance and optimisation are embedded within future-state system design. The Role You will: * Act as the VAT SME across SAP S/4HANA and customer management platforms * Lead VAT input into system design, configuration and implementation * Conduct gap analysis between current VAT processes and future-state functionality * Ensure VAT requirements are accurately reflected across income streams and purchase transactions * Oversee VAT-related testing and resolve defects prior to go-live * Partner closely with senior stakeholders including Head of VAT and programme leadership Experience Required * In-house VAT compliance experience within financial services * SAP ERP / SAP S/4HANA transformation experience * Exposure to large-scale system implementations * CTA qualified (3+ years PQE or equivalent) * Strong stakeholder engagement...