3+ years of experience processing end-to-end U.S. payroll for small to large employee populations, including regular and off-cycle payrolls, deductions, garnishments, bonuses, gross-ups, reconciliations, and year-end activities such as W-2 support. Experience using payroll systems and related technology to manage employee data, client setup, data uploads, APIs, configuration testing, reporting, and issue resolution, with strong analytical skills, attention to detail, and client-facing communication abilities.