Senior Payroll Accountant - Reston, VA

Position Title: Senior Accountant / Payroll Specialist

Location: Reston, VA (On-Site)

Assignment Type: Temp-to-Permanent

Compensation: $43/hr-$48/hr

Work Schedule: M-F, 9-5

Benefits: This position is eligible for Medical, Dental, Vision, and 401(k)

Addison Group is seeking a Senior Accountant / Payroll Specialist to join a growing organization in the Northern Virginia area. This position will support both accounting operations and full‑cycle payroll processing while partnering closely with leadership and cross‑functional teams. The ideal candidate will have strong general ledger experience, advanced payroll knowledge, and the ability to thrive in a fast‑paced environment with a high level of accuracy and confidentiality.

• Support month‑end close activities including journal entries, reconciliations, and financial reporting
• Maintain and reconcile the general ledger to ensure financial accuracy and compliance
• Process full‑cycle semi‑monthly payroll for a multi‑state employee population
• Review employee timesheets and process payroll adjustments as needed
• Ensure payroll compliance with federal, state, and local regulations
• Coordinate payroll‑related employee changes including new hires, terminations, benefits deductions, and garnishments
• Respond to payroll inquiries and resolve issues in a timely manner
• Assist with accounts payable and accounts receivable functions as needed
• Prepare account reconciliations and support monthly financial analysis
• Assist with audits and support documentation requests from external auditors
• Support internal controls, accounting procedures, and process improvement initiatives
• Collaborate with HR and other departments to ensure accurate employee and payroll records

• 5+ years of accounting and full‑cycle payroll experience
• 5+ years of Deltek Costpoint experience required
• Bachelor’s degree in Accounting, Finance, or related field required
• Strong understanding of accounting principles, payroll regulations, and financial reporting
• Advanced Microsoft Excel skills and experience with ERP/payroll systems
• Experience with payroll systems such as ADP, Paycom, iSolved, or similar platforms preferred
• Strong attention to detail, organizational skills, and problem‑solving ability
• Ability to handle confidential information professionally
• Experience in a fast‑paced environment preferred
• Government contracting experience strongly preferred

• Fully onsite position in Reston, VA
• Flexible work environment with standard business hours
• Position will support both accounting and payroll operations
• Interview process and hiring timeline moving quickly

Addison Group is an Equal Opportunity Employer. Addison Group provides equal employment opportunities (EEO) to all employees and applicants for employment without regard to race, color, religion, gender, sexual orientation, national origin, age, disability, genetic information, marital status, amnesty, or status as a covered veteran in accordance with applicable federal, state and local laws. Addison Group complies with applicable state and local laws governing non‑discrimination in employment in every location in which the company has facilities.

Reasonable accommodation is available for qualified individuals with disabilities, upon request.