Jobs › Waltham, MA › Payroll Administrator Robert Half Payroll Administrator Waltham, MA Apply Description We are looking for a Payroll Administrator to support accurate and timely payroll operations for a multi-state employee population in Waltham, Massachusetts. This position plays an important role in managing end-to-end payroll activities, maintaining compliance with applicable regulations, and helping ensure employees are paid correctly each cycle. The ideal candidate brings strong payroll processing experience, attention to detail, and confidence working with ADP Workforce Now in a fast-paced environment.

Responsibilities:

• Manage complete payroll processing from initial data review through final submission for a workforce of approximately 101 to 500 employees.
• Administer payroll activities across multiple states while applying current wage, tax, and compliance requirements accurately.
• Review payroll data for earnings, deductions, taxes, and time-related inputs to resolve discrepancies before each pay cycle is finalized.
• Maintain employee payroll records in ADP Workforce Now and ensure updates are entered correctly and on schedule.
• Investigate and address payroll-related questions from employees and internal stakeholders in a thorough and timely manner.
• Reconcile payroll reports and supporting records to confirm accuracy and support audit readiness.
• Partner with relevant teams to coordinate payroll changes such as new hires, terminations, compensation updates, and benefit deductions.
• Support payroll-related process improvements or system-related changes when needed while preserving accuracy and continuity of service. Requirements
• Proven experience handling full-cycle payroll processing in a detail-oriented business environment.
• Background managing payroll for employees working in multiple states.
• Experience supporting payroll for organizations with approximately 101 to 500 employees.
• Proficiency using ADP Workforce Now for payroll administration and record maintenance.
• Strong knowledge of payroll practices, tax withholding, deductions, and compliance standards.
• High level of accuracy, organization, and discretion when working with sensitive employee information.
• Ability to identify issues, perform reconciliations, and resolve payroll discrepancies efficiently.

Robert Half is the world's first and largest specialized talent solutions firm that connects highly qualified job seekers to opportunities at great companies. We offer contract, temporary and permanent placement solutions for finance and accounting, technology, marketing and creative, legal, and administrative and customer support roles. Robert Half works to put you in the best position to succeed. We provide access to top jobs, competitive compensation and benefits, and free online training. Stay on top of every opportunity - whenever you choose - even on the go. Download the Robert Half app (https://www.roberthalf.com/us/en/mobile-app) and get 1-tap apply, notifications of AI-matched jobs, and much more. All applicants applying for U.S. job openings must be legally authorized to work in the United States. Benefits are available to contract/temporary professionals, including medical, vision, dental, and life and disability insurance. Hired contract/temporary professionals are also eligible to enroll in our company 401(k) plan. Visit roberthalf.gobenefits.net for more information. © 2025 Robert Half. An Equal Opportunity Employer. M/F/Disability/Veterans. By clicking "Apply Now," you're agreeing to Robert Half's Terms of Use (https://www.roberthalf.com/us/en/terms) and Privacy Notice (https://www.roberthalf.com/us/en/privacy) . Active Filters Payroll Administrator Waltham, MA Clear All Apply