Billing Specialist II

HydroGeoLogic, Inc • Reston, VA

11h • $67,409 - $97,743 • Hybrid

About The Position

HGL is seeking an experienced Billing Specialist II to join our accounting team. The Billing Specialist II will manage all aspects of billing for assigned contracts and collaborate with project managers, program managers, accounting, contracts, and procurement teams. The ideal candidate will be detail- and compliance-oriented, an effective communicator, and able to manage multiple priorities in a fast-paced, deadline-driven environment.

Candidates will work in office in Reston, VA while they are training, and then will shift to a hybrid work schedule.

Requirements

• 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.

Nice To Haves

• 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.

Responsibilities

• 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.

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level