Senior Payroll Analyst

Responsibilities Process full-cycle, multi-state US payroll end-to-end across bi-weekly and semi-monthly pay cycles using ADP Workforce Now and Workday. Work with third party providers to process Canada and LATAM payrolls. Reconcile payroll data between Workday HRIS and ADP WFN, ensuring accuracy of earnings, deductions, taxes, and benefits contributions before each pay run. Manage multi-state tax compliance across all 34 active states including new-hire reporting, SUI/SIT registration, local tax setup, and year-end W-2/T4 processing. Administer Canadian payroll in compliance with federal and provincial requirements (source deductions, ROEs, T4s, and year-end remittances). Partner with HR, Total Rewards, and Finance to process payroll changes including new hires, terminations, LOAs, equity compensation events, and off-cycle payments. Identify, document, and lead process improvement initiatives that increase accuracy, reduce manual effort, and scale with company growth - you’ll be expected to leave each process better than you found it. Support payroll audits, internal controls reviews, and SOX-adjacent compliance activities as the company moves toward an IPO-ready finance posture. Serve as a tier-2 escalation point for employee payroll inquiries, resolving issues with speed and professionalism. Monitor regulatory changes in federal, state/provincial, and local tax law and proactively flag impacts to the team. Contribute to the buildout of payroll infrastructure to support international expansion beyond the US and Canada. Requirements 4 - 7 years of payroll experience, with at least 3 years handling multi-state US payroll at scale (1,000+ employees). Hands‑on proficiency with ADP Workforce Now (WFN); you know it deeply, not just surface-level. Experience with Workday as an HRIS, including integration data flows between Workday and a payroll processor. Demonstrated experience processing Canadian payroll, including provincial compliance and year-end requirements. A track record of owning and shipping process automations & improvements. Strong grasp of US payroll tax concepts: federal withholding, FICA, SUI/SIT, imputed income, supplemental wages, and equity-related taxation (RSUs, NSOs, ISOs). Meticulous attention to detail paired with the ability to prioritize in a fast‑moving environment. Excellent cross‑functional communication skills; comfortable explaining payroll nuance to non‑payroll audiences. Exposure to pre‑IPO or high‑growth tech environments. Hard Skills multi-state US payroll Canadian payroll payroll processing tax compliance process automation ADP Workforce Now Workday HRIS payroll audits regulatory compliance data reconciliation Soft Skills attention to detail cross-functional communication problem-solving process improvement professionalism prioritization leadership collaboration adaptability customer service #J-18808-Ljbffr Jobtailor