Senior Technical Business Analyst Inside IR35 - £500 - £600 p/d 6 months rolling contract Hybrid: 1-2 days a week in London We are seeking an experienced Technical Business Analyst to take a leading role on a major transformation programme. The successful candidate will work across multiple corporate shared services functions (Procurement, Travel, Property, Finance Operations, ESG, etc.) to ensure that business needs are fully understood, documented, and translated into solution requirements. This is a key role that will shape how core services are delivered and integrated, requiring strong business analysis expertise and excellent stakeholder engagement skills. Key Responsibilities Lead the requirements gathering process across corporate shared services functions, ensuring alignment with wider programme objectives. Work closely with stakeholders to elicit, analyse, and document business and functional requirements. Map and model business processes, identifying gaps, inefficiencies, and opportunities for improvement. Define and validate data requirements and capture integration needs across multiple corporate systems. Act as the bridge between business stakeholders and technical teams, ensuring requirements are clearly communicated and understood. Support prioritisation and traceability of requirements through to delivery. Champion best practices in business analysis, ensuring consistency and quality of outputs across the programme.Skills & Experience Strong, demonstrable experience as a Business Analyst, ideally on large-scale corporate or shared services transformation programmes. Deep understanding of corporate functions (Finance, Procurement, Property, Travel, ESG, HR, etc.) and how they operate within shared services models. Skilled in business process modelling and the use of requirements management tools. Proven ability to define data requirements and understand system integration dependencies. Excellent facilitation and stakeholder management skills, with the confidence to engage senior business leaders and subject matter experts. Strong communication, documentation, and presentation skills, with the ability to turn complex information into clear outputs