Senior Workday Data Architect - SC Cleared - Inside IR35 Contract Own the Data Strategy for a Major Workday Transformation Location: Hybrid (20% in London or Glasgow ) | Contract - Inside IR35 | Duration: Initial 6 Months | Clearance: SC Clearance Essential Are you a seasoned Workday Data Leader with 7-10 years' experience who can define and deliver a complex data migration strategy from scratch? Our client is embarking on a major Workday transformation within a secure, complex environment. They require an exceptional Senior Workday Data Lead to take full accountability for data readiness, ensuring a successful migration across HR, Finance, and Payroll domains ahead of the SI-led implementation. This is a critical leadership role reporting directly into the Technical Delivery Manager. The Role: Data Migration & Governance Authority You will mobilise and lead the entire data sub-workstream, acting as the primary subject matter expert (SME) for all Workday data objects and structures. Key Responsibilities: Strategy & Execution: Define, document, and execute the end-to-end data migration strategy, including scope, toolset, timelines, and data conversion best practices. Core Delivery: Lead data extraction, cleansing, mapping, transformation, validation, and reconciliation across HR, Finance, and Payroll. Technical Expertise: Act as the Workday data SME, producing critical artefacts like migration plans, data dictionaries, and detailed mapping specifications. Governance & Compliance: Ensure all data activities adhere to strict governance frameworks, including GDPR and security requirements. Collaboration: Work seamlessly with the Integration Lead, Technical Delivery Manager, and business SMEs to ensure data flows align with technical architecture. Essential Experience Required SC Clearance is MANDATORY for this role. 7-10 years' experience in data leadership roles on large ERP/HCM programmes with a primary focus on Workday. Proven track record of delivering full data migrations into Workday across key domains (HR, Finance, Payroll). Deep expertise in Workday data models, data structures, and tenant configuration. Excellent knowledge of data cleansing, mapping, and governance frameworks (e.g., GDPR). Strong stakeholder management skills, particularly when defining data ownership and driving business accountability. Desirable: Previous experience in the Public Sector or other regulated industries. Familiarity with Workday reporting, Prism Analytics, and data integration patterns (MuleSoft/Azure). Next Steps This is an Inside IR35 contract opportunity with an initial 6-month duration and high likelihood of extension. If you are an SC Cleared Workday Data expert ready to own a mission-critical workstream, please apply now with your CV for a confidential discussion regarding the day rate.