HR Associate (Contractor) - Hybrid - Leatherhead Surrey Leatherhead, Hybrid 3 days in the office | 6-Month Contract | £30-35k per annum | Immediate Start Are you an HR or Payroll professional ready to step into a high-impact integration project? Do you thrive in fast-paced environments, navigating HR operations, payroll accuracy, and complex data with precision? This is your chance to join a dynamic HR team during an exciting business acquisition - supporting full integration across HR, Payroll, Systems, and Processes. About the Role As our HR & Payroll Integration Support specialist, you will play a pivotal role in: HR & payroll integration work for a recent acquisition Full UK payroll accountability (global payroll provider partnership) Employee data alignment, testing, validation & systems migration Benefits administration, reconciliations, and onboarding/offboarding HR operations, policy guidance, recruitment support & employee queries Ensuring compliance with UK laws, tax rules, company policies Supporting continuous improvement, change communications & training This role offers broad exposure, real responsibility, and exceptional learning across HR, Payroll, M&A, and systems transformation. Key Responsibilities HR & Payroll Integration Harmonise payroll processes, systems, data & policies Support HRIS (Workday), ATS, LMS, T&A, comp tools inventory and mapping Data cleansing, deduplication & migration testing Resolve data discrepancies, integration gaps & workflow blockers Coordinate with HR, Finance & external payroll vendors Support employee communications, change plans & training rollouts Payroll Administration End-to-end payroll cycle: preparation ➝ vendor submission ➝ reconciliation Manage payroll deadlines, approvals & compliance checks Recommend process enhancements & streamline post-acquisition flow Benefits Administration Map legacy benefits to new plans, manage migrations & deductions Assist with leave balance migration, reconciliations, approvals Oversee car fleet returns, share option process & provider liaison Prepare eligibility files, enrollments & exception tracking HR & Workforce Support Maintain accurate employee data in Workday Manage hires, transfers, promotions & exits Support recruitment, onboarding & compliance Respond to employee & manager HR queries with empathy & accuracy Contribute to HR process improvements, documentation & knowledge sharing Experience & Qualifications HR-related education; Bachelor's degree a plus Strong experience in Payroll HR generalist functions M&A or integration experience highly advantageous Knowledge of UK employment law & global HR operations HR systems experience (Workday preferred) Strong analytical, problem solving & stakeholder partnership skills Able to work confidentially, accurately, and with pace Experience in Pharma/Animal Health a plus What's in It for You? A chance to shape HR & Payroll integration during an acquisition Work across multiple HR disciplines - excellent career development Exposure to global teams, systems, and transformation projects A collaborative, agile HR environment where your ideas matter Ready to Elevate Your HR Career? If you're detail-driven, proactive, and excited to support a major HR and payroll transition - we want to hear from you. Apply now and become a key force in our integration journey! 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As a Fortune 500 company and the world leader in animal health, we discover, develop, manufacture and commercialize vaccines, medicines, diagnostics and other technologies for companion animals and livestock. We know our people drive our success. Our award-winning culture, built around our Core Beliefs, focuses on our colleagues' careers, connection and support. We offer competitive healthcare and retirement savings benefits, along with an array of benefits, policies and programs to support employee well-being in every sense, from health and financial wellness to family and lifestyle resources. Global Job Applicant Privacy Notice