Accounts Receivable Specialist

We are seeking a part- time Accounts Receivable Billing Specialist with 3+ years of experience for our expanding workforce in Lone Tree, CO. Opportunities for career advancement, excellent benefits and long-term stability are some of the advantages of our growing, employee-focused company.

Responsibilities

• 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

Qualifications

• 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.
• US Citizenship
• Submit invoices through Wide Area Workflow (WAWF) and subcontractor portals and investigate billing discrepancies while coordinating payment status for past due invoice
• 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 record
• Contribute to process improvements for billing and purchasing operations, leveraging technology and best practices

Desired experience:

• 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.