• Responsible for leading and managing the end-to-end payroll function across union and non-union labor groups. • Oversees payroll operations, payroll tax compliance, retirement and deduction processing, and payroll accounting activities in alignment with the U.S. Department of Energy (DOE) prime contract, collective bargaining agreements (CBAs), and applicable federal, state, and local regulations. • Serves as the primary subject matter authority for Costpoint payroll administration and payroll governance, while providing leadership, direction, and oversight to payroll staff. • Leads payroll operations for multi-site, union and non-union populations, including oversight of payroll processing cycles, payroll corrections, and off-cycle payments. • Manages payroll compliance with DOE contractual requirements, collective bargaining agreements, wage determinations, and applicable tax laws and regulations. • Directs payroll tax activities, including preparation, reconciliation, and filing of federal, state, and local payroll tax forms (W-2, 940, 941, state equivalents). • Oversees payroll accounting activities, including preparation of payroll journal entries, reconciliation of payroll general ledger accounts, and maintenance of payroll ledgers. • Serves as the primary Costpoint payroll system authority, including configuration oversight, testing of system changes, coordination with IT and vendors, and resolution of complex payroll issues. • Provides leadership, coaching, work review, and workload prioritization for payroll staff, supporting consistent execution and adherence to internal controls. • Oversees retirement, benefit, and deduction processing, including coordination with 401(k) administrators, union dues, flexible spending accounts, and other statutory and voluntary. • Conducts research and provides authoritative guidance on the tax and accounting treatment of complex or non-routine payroll transactions. • Prepares payroll-related reporting and analysis for senior management, internal stakeholders, auditors, and external agencies. • Establishes and maintains payroll procedures, internal controls, and documentation to support audit readiness, data integrity, and compliance obligations. • Partners with Human Resources, Finance, Legal, and external vendors to support organizational initiatives, audits, and workforce changes impacting payroll. • Performs other related duties as assigned.