Portfolio Payroll is delighted to partner with a leading, multi-brand organisation to recruit a high-calibre Senior Payroll and Benefits Specialist. This is a pivotal role within a dynamic HRIS, Payroll, and Finance ecosystem, offering total ownership of a complex portfolio and a fantastic opportunity to drive continuous process improvements. The RoleIn this role, you will take comprehensive ownership of a high-quality, timely, and fully compliant monthly payroll cycle for 12 UK payrolls, impacting over 1,500 employees. Acting as the key Subject Matter Expert (SME), you will champion data integrity, maintain exceptional accuracy across all systems, and proactively collaborate with the wider HR team to support strategic departmental goals. Key Responsibilities:End-to-End Payroll: Lead and validate the accurate execution of 12 monthly UK payrolls, including complex statutory calculations (SMP, SPP, unpaid sickness) and variable cash/hours payments.System and Data Integrity: Act as the primary custodian of data flow between Workday and SAP HR, running payslip simulations for starters, leavers, and job changes to catch anomalies.Benefits and Pensions: Oversee auto-enrolment processes, manage monthly reporting to benefit providers, and lead the annual renewal process for company-wide benefits.Stakeholder and Advisory: Act as the tier-2 escalation point for employees and managers on complex Pay, Tax, NI, and Group guideline queries.Legislative Compliance: Proactively monitor, ..... full job details .....