Manage weekly payroll operations for approximately 850 Canadian employees across multiple provinces, entities, unions, and business units. Lead payroll staff, ensure legislative and collective-agreement compliance, oversee reconciliations, tax filings, year-end reporting, and finance coordination. Improve payroll, HRIS, time-tracking, and accounting systems; develop reporting and dashboards; and lead payroll and HRIS integrations for acquired companies, including data conversion, process alignment, communication, and training.