Senior Payroll Specialist – Government Contracting (Temp-to-Hire)

Chantilly, VA On-Site Deltek Costpoint

We are hiring a Senior Payroll Specialist with deep Government Contracting (GovCon) payroll experience to support a high-volume, client-facing outsourced accounting environment. This is a temp-to-hire role and requires hands-on ownership of payroll from start to finish.

This position is best suited for a senior or supervisor-level payroll professional with strong Costpoint expertise and the confidence to work directly with government contractor clients.

Compensation

Contract: Up to $60/hour
Conversion Salary: $100,000 – $120,000

Location & Schedule

Chantilly, VA
Fully on-site, Monday–Friday

Key Responsibilities

Process bi-weekly, semi-monthly, and weekly payrolls
Heavy use of Deltek Costpoint Payroll
Import and audit timekeeping data for exempt and non-exempt employees
Payroll accounting, journal entries, and general ledger reconciliations
Payroll tax compliance (monthly, quarterly, annual filings)
Garnishments, liens, overtime, off-cycle payments, and leave accruals
Process and reconcile 401(k) contributions and loans
Support internal and external payroll audits
Build payroll reports and trackers using Excel
Set up new state tax accounts and manage multi-state payroll compliance
Act as a client-facing payroll subject matter expert, resolving payroll inquiries

Required Qualifications

5+ years of CURRENT Government Contracting payroll experience
5+ years of Deltek Costpoint payroll experience (required)
Experience with ADP or Paylocity
Strong payroll accounting and reconciliation skills
Knowledge of payroll tax regulations and compliance rules
Excellent communication skills; client interaction is a core function
Ability to work independently in a fast-paced environment
U.S. Citizenship required

Level

Senior / Supervisor-level payroll professional
This is not an entry-level or transactional payroll role

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Senior Payroll Specialist - Government Contracting