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Sr. Payroll Specialist

Ocular Therapeutix, Inc.
July 02, 2026
Remote friendly (Bedford, MA)
United States
Human Resources
Position Summary
The Payroll Specialist is responsible for the accurate and timely processing of multi-state payroll for approximately 320+ employees, including salary, hourly, bonus, and equity-related compensation. Partner cross-functionally with HR, Finance, and external vendors to ensure accurate payroll processing and reporting.

Principal Duties and Responsibilities
- Process and review semi-monthly (salary) and bi-weekly (hourly) multi-state payrolls using ADP Workforce Now.
- Coordinate and process special payments (e.g., bonuses, equity, LOA).
- Coordinate and review monthly/quarterly reporting to federal and state governmental agencies.
- Support payroll processing for equity compensation (stock awards, option exercises, ESPP transactions).
- Collaborate with HR on onboarding/offboarding, maintenance of compensation, and initiating PTO.
- Support payroll audits and internal controls through documentation and reconciliation.
- Administer employee changes in ADP (add employees, update master data, terminate employees).
- Generate and analyze payroll reports for Finance, HR, and audits.
- Ensure compliance with federal, state, and local payroll regulations (wage/hour laws, tax reporting, recordkeeping).
- Assist with researching payroll issues, accruals, and account reconciliations.
- Assist with stock-based compensation, including the employee stock purchase plan.

Qualifications/Requirements
- 5–7+ years of payroll processing experience.
- Experience with multi-state payroll in high-growth environments.
- Proficiency with ADP Workforce Now (preferred).
- Excellent attention to detail.
- Understanding of equity compensation payroll taxation (RSUs, ESPP, stock options) preferred.
- Exceptional mathematical/calculation skills.
- Strong verbal and written communication.
- Strong Microsoft Excel skills (e.g., VLOOKUP, SUMIFs, pivots).
- Ability to partner with cross-functional teams.
- Knowledge of payroll, garnishments, and benefits distribution.
- Multitasking; good research and analysis skills.

Salary Range
$95,000–$105,000 USD