Mass General Brigham Incorporated is seeking a Payroll Specialist to support weekly and monthly payroll processing for all companies in Workday. The role requires a strong payroll background, analytical skills, a technical (systems) mindset, and clear communication. The incumbent will balance production tasks with employee interactions and queries. Hybrid schedule with onsite presence 4x/month at Assembly Row, Somerville, MA. Experience with UKG integrations and payroll taxes is highly valued.