Payroll Administrator

TriNetX, LLC.•Cambridge, MA

9h•Hybrid

About The Position

The Payroll Administrator is responsible for the accurate and timely processing of all payroll activities for TriNetX’s U.S. and international employees. This role ensures compliance with federal, state, and local regulations while supporting internal stakeholders in Finance, HR and Operations. The ideal candidate is detail oriented, highly organized, and able to work in a fast paced, scaling organization. TriNetX connects healthcare organizations and researchers across the globe so they can see what’s happening in real patient populations. Their aim is to provide a clear path to trustworthy answers for creating new therapies, publishing groundbreaking research, or improving health outcomes. They keep identifiable data secure within more than 11,000+ clinical sites across 20+ countries, preserving security, provenance, and granularity, and ensuring high-fidelity data and properly governed linkage back to individual patients.

Requirements

Bachelor’s degree or higher in Accounting, Finance, Business, or equivalent experience.
3+ years of payroll processing experience in a multi-state environment.
Strong understanding of payroll regulations, tax laws, and wage/hour standards.
Experience with modern payroll software (ADP Workforce Now, Dayforce, Vistra Global, etc.).
Exceptional attention to detail and strong analytical skills.
Ability to handle confidential information with discretion.

Nice To Haves

Experience supporting global payroll in EMEA or APAC regions.
CPP (Certified Payroll Professional) or FPC certification.
Prior experience in a high growth tech or healthcare data company.

Responsibilities

Prepare and process weekly, semi-monthly payroll for U.S. employees and coordinate monthly payroll cycles for international entities.
Maintain payroll records including new hires, terminations, compensation changes, and benefit deductions.
Validate timesheets, commissions, bonuses, and other pay related adjustments.
Reconcile payroll prior to transmission and validate all outputs.
Ensure compliance with all federal, state, and local payroll laws and regulations.
File payroll tax reports and coordinate with external tax partners as needed.
Support annual and quarterly reporting, including W-2, 1099, and audit requests.
Maintain confidentiality and adhere to data privacy standards.
Administer payroll systems (e.g., Dayforce, Vistra Global, or company specific tools) and coordinate integrations with HRIS and accounting software.
Identify and implement process improvements to increase payroll accuracy and efficiency.
Manage payroll GL mappings and support Finance with month end close entries and reconciliations.
Serve as primary point of contact for payroll related inquiries.
Provide clear and timely communication regarding payroll policies, deductions, tax withholding, and paycheck questions.
Collaborate with HR on benefits, leave programs, and employee lifecycle changes.