Senior Payroll Analyst

At Viridian, we are focused on developing best-in-class medicines for people living with autoimmune and rare diseases. Leveraging our team’s expertise in antibody discovery and engineering, we have created a robust pipeline of differentiated investigational therapeutic candidates for well-validated targets.

Reporting to the Senior Manager, Payroll & Equity, the Senior Payroll Analyst will be responsible for managing payroll operations, as well as certain equity and related financial processes. This role involves close collaboration with HR, Finance, and external consultants to ensure accurate and timely execution of payroll, benefits, and equity-related activities.

This role is based in our Waltham, MA headquarters. Our office-based employees are required to work in the office three (3) days a week.

Responsibilities (including, but not limited to):

Process high-volume, multi-state U.S. payrolls for both exempt and non-exempt employees within a growing organization following established checklists, including off-cycle and special payments

Maintain payroll state tax records and coordinate state registrations

Partner with HR to support employee benefit enrollments, open enrollment, review payroll and benefits information in the system for new and existing employees

Prepare and reconcile payroll audit files before and after each payroll run to ensure accuracy and compliance

Manage and maintain time tracking to validate data before each payroll cycle

Prepare monthly, quarterly and year-end payroll journal entries and reconciliations

Run weekly and monthly reports for Finance team members

Generate project tracking reports and update hours as needed

Support workers’ compensation, 401(k), and KPMG audits, and provide workers’ compensation data for insurance as needed

Review employee W-2 data for tax reporting, and assist with 6039 reporting and review of 3921/3922 data in accordance with tax deadlines

Upload grants and ESPP contributions to Fidelity

Ensure employee data is accurate in equity platform

Manage ESPP purchases and ensure enrollments are properly recorded for new offering periods

Manage RSU vesting events to ensure appropriate tax withholding

Maintain data feeds connecting Payroll and Equity platforms

Be the point person for any federal, state & local tax, UI claims or garnishments, etc. Monitor and respond to payroll-related employee inquiries via email and phone, providing high-quality customer service

Maintain and update FAQs to support consistent communication

Develop, maintain, and implement policies and standard operating procedures to ensure compliance with internal controls

Identify and recommend opportunities to improve processes and automate tasks