Accounts Receivable Specialist

Accounts Receivable Billing Specialist (Part‑time)

Location:

Lone Tree, CO.

$60,000.00/yr – $65,000.00/yr

• Review and interpret client contracts and modifications to ensure accurate billing setup and proper entry into Unanet.
• Generate and analyze job cost and financial reports using Unanet and Excel, providing weekly updates to program managers on funding, level of effort, travel, materials, and overall billing performance.
• Create and maintain billing records and systems, prepare and process invoices for various contract types (e.g., fixed‑price, cost‑plus, time and materials) with CLIN/SLIN/ACRN structures, apply indirect rates, and support final closeout processes.

• Associate’s degree in accounting, Business, or Finance, or a minimum of three (3) years of relevant billing and Purchasing experience in lieu of the degree.
• Ability to obtain a Secret clearance.
• Submit invoices through Wide Area Workflow (WAWF) and subcontractor portals and investigate billing discrepancies while coordinating payment status for past‑due invoices.
• Maintain accurate contract documentation and send Letters of Funding.
• Assist with financial audits and ensure compliance with company policies and other government regulations.
• Collaborate with project managers and finance teams.
• Provide other administrative and finance‑related support as needed.
• Manage corporate purchasing activities, including vendor management, issuing purchase orders, and maintaining accurate records.
• Contribute to process improvements for billing and purchasing operations, leveraging technology and best practices.

• Knowledge of and experience applying Federal Acquisition Regulation (FAR) and related procurement policies.
• Familiarity with Defense Contract Management Agency (DCMA) and Defense Contract Audit Agency (DCAA).
• Hands‑on experience using Unanet for timekeeping, project accounting, billing, or financial reporting.
• Prior experience with government invoicing, financial audits, and contract closeout procedures under federal contract guidelines.
• Openness to emerging technologies, including a willingness to leverage AI tools and adopt new digital solutions to improve operational efficiency.

• Associate

• Part‑time

• Accounting / Auditing
• Defense and Space Manufacturing (Industry)

Applicants are encouraged to submit their resume and cover letter outlining relevant experience.