Billing Specialist II

Billing Specialist II

City & State

Location:

Reston, VA

At HGL, we value our employees as individuals and as important members of our team. We offer a flexible, inclusive work environment dedicated to creating a sustainable future, and we provide opportunities for career growth through internal and external training, skill advancement, and education. Our projects span the United States and its territories, addressing emerging contaminants and traditional chemical contamination across all media.

• Prepare and submit complex invoices for Time & Materials (T&M), Firm-Fixed-Price (FFP), and Cost-Plus (CP) contracts in accordance with client and contract requirements.
• Maintain a comprehensive understanding of federal contract billing processes, including regulations under FAR/DFARS compliance.
• Review contract documents and modifications to determine accurate billing instructions and rates.
• Collaborate with project managers, contract administrators, and accounts receivable teams to resolve billing discrepancies and ensure accuracy.
• Ensure timely and accurate submission of invoices using government portals (e.g., WAWF, IPP, VA Tungsten) with appropriate use of CLIN and SubCLIN information per contractual requirements.
• Track and manage past‑due and unbilled receivables, ensuring prompt resolution and collection of aging items.
• Provide support during internal and external audits, including DCAA audits.
• Reconcile billed amounts to project budgets and actuals, ensuring consistency with accounting system (e.g., Deltek Costpoint).
• Assist with monthly, quarterly, and year‑end financial close activities related to revenue and billing.

• Minimum of 4 years’ experience of billing in the government contracting industry.
• Bachelor’s degree in Accounting, Finance, or related field is preferred; equivalent combination of education and work experience will be considered.
• Strong computer proficiency with demonstrated expertise in MS Office, especially MS Excel.
• Excellent verbal and written communication skills.
• Strong organizational skills and attention to detail.
• Ability to manage multiple priorities in a fast‑paced, deadline‑driven environment.
• Ability to work both independently and collaboratively within a team.

• Experience with Deltek Costpoint billing module strongly preferred.
• Experience developing cost spreadsheets for federal government proposals.
• Knowledge of cost proposal requirements in federal IDIQ solicitations and task order RFPs.

A pre‑hire drug test is required.

We are an Equal Opportunity employer. All applicants will receive consideration for employment without regard to race, color, religion, sex, age, national origin, disability, protected veteran status, or other protected category. Some positions may require U.S. citizenship. Applicants who wish to request a reasonable accommodation during the recruitment process should contact Human Resources directly at 703‑478‑5186.

EEO notices: US Equal Opportunity Employment Poster, US Equal Opportunity Supplemental Poster, Know Your Rights, and Pay Transparency Notice.

A full list of benefits is available at

The annual salary range for this position ranges from $67,409 - $97,743. This position's final salary can be impacted by various factors including, but not limited to, contractual requirements, geographic location, job‑related education, training, experience, and skills. If your desired salary falls outside of this range, we hope you'll still apply as there may be other positions that better align.