Billing / Accounts Receivable Clerk

Terrestris LLC; Springfield (VA); On-site; USD 42,000 - 64,000; Full time

Benefits offered by this job

Health benefits

Retirement plan

Tuition assistance

Paid time off

Job summary

Terrestris LLC is seeking a Billing / Accounts Receivable Clerk to support daily AR and billing operations in a government contracting environment. This entry- to mid-level role focuses on accuracy, compliance, and timely invoicing to government and commercial customers.

You will read contracts, set up customers and contracts in the ERP system, prepare invoices, and track payments, ensuring compliance with contract requirements and portal submission rules.

Qualifications

• Authorization to permanently work in the United States without sponsorship.
• High school diploma or equivalent.
• 1+ year in Billing/Accounts Receivable or related field.
• Experience reading contracts and translating terms to billing requirements.
• Experience setting up customers/contracts in an ERP system.
• Knowledge of government contract billing types (FFP, T&M, LOE, Milestone).
• Experience submitting invoices through government portals (WAWF/IPP) preferred.

Responsibilities

• Read and understand contracts, billing terms, funding, and invoicing requirements.
• Set up customers and contracts in the ERP system with correct billing terms.
• Prepare, process, and distribute invoices to government and customers.
• Submit invoices through WAWF, IPP, or other portals and track status.
• Maintain accurate customer and contract records and support close activities.

Skills

Contract terms understanding

Billing accuracy

Detail oriented

Microsoft Excel

Communication skills

Education

Associate's or Bachelor's degree in Accounting/Finance/Business

Tools

Deltek Costpoint

Unanet

QuickBooks

NetSuite

MS Dynamics

Job description

Are you looking for a Challenge? Looking for an innovative organization and the opportunity to learn and grow professionally? We can help! We are seeking a Billing / Accounts Receivable Clerk to join our Finance & Accounting team. This is an excellent opportunity for an entry-level to mid-level accounting professional looking to build a career in a growing government contracting environment.

At Terrestris, we leverage technology to create better mission outcomes through better human performance. We form strong client and team relationships through transparency and strive to create an environment where our team can let their excellence shine through. By finding, developing, and incorporating new ideas, we provide memorable services. Rooted in the USMC values of honor, courage, and commitment, Terrestris seeks to deliver extraordinary value to the American people by helping the Government become more efficient and effective.

So, what will the Billing / Accounts Receivable Clerk at Terrestris do?

The Billing/Accounts Receivable Clerk will support the company's daily accounts receivable and billing operations, including government contract billing, invoice preparation and submission, payment processing, account reconciliation, collections support, financial recordkeeping, customer and contract setup, and expense processing.

The ideal candidate is detail-oriented, organized, dependable, comfortable working with numbers, and able to read and understand contract requirements and translate them into accurate billing. The candidate should have an understanding of government contracting and federal government invoicing, including different contract billing types and invoice submission requirements.

We are open to candidates with a range of experience, from those beginning their accounting careers to professionals with several years of accounts receivable or billing experience. Hands-on government contracting billing experience is strongly preferred.

What does a typical day look like for a Billing / Accounts Receivable Clerk?

You Will

• Read and understand customer and government contracts, including billing terms, funding, contract line items, period of performance, and invoicing requirements.
• Set up customers, contracts, billing information, and applicable billing terms accurately in the company's accounting/ERP system.
• Prepare, process, and distribute customer and government invoices accurately and on schedule.
• Review contracts and supporting documentation to ensure invoices are prepared in accordance with contract requirements.
• Understand and apply different government contract billing types, including Firm-Fixed-Price (FFP), Time & Materials (T&M), Level of Effort (LOE), and Milestone-based billing.
• Determine the appropriate billing method based on the contract and applicable contract terms.
• Prepare invoices for labor, travel, other direct costs, and reimbursable expenses in accordance with contract requirements.
• Submit government invoices through WAWF, IPP, or the applicable government/customer invoicing portal or website.
• Track invoice submissions, invoice status, rejections, suspensions, approvals, and payments, and follow up on outstanding issues.
• Review invoices and supporting documentation for completeness, accuracy, and compliance with contract requirements.
• Enter accounts receivable transactions into the company's accounting system.
• Record and apply customer payments to the appropriate customer accounts.
• Monitor outstanding receivables and assist with follow-up on past-due accounts.
• Maintain accurate customer and contract records and supporting documentation.
• Perform routine accounts receivable reconciliations and research discrepancies.
• Assist with monthly, quarterly, and year-end accounting close activities.
• Respond to customer questions regarding invoices, account balances, and payment status.
• Coordinate with Project Managers, Contracts, Program Management, and Finance personnel to resolve billing issues and contract-related questions.
• Assist with tracking invoices, payments, contract funding, contract billing, and outstanding receivables.
• Process employee travel and expense reports on a semi-monthly basis, including reviewing receipts and supporting documentation for completeness, accuracy, appropriate coding, and compliance with company policies.
• Review travel and other reimbursable expenses and prepare applicable client billings in accordance with contract terms and billing requirements.
• Coordinate with employees, Project Managers, and Finance personnel to resolve questions or discrepancies related to travel expenses and expense reports.
• Ensure reimbursable travel and other expenses are properly recorded in the accounting system and included in client invoices when applicable.
• Maintain organized electronic and physical financial records.
• Assist with internal and external audits by providing requested documentation.
• Prepare basic accounts receivable reports, including aging reports.
• Identify discrepancies and unusual transactions and bring them to the attention of appropriate Finance personnel.
• Follow established accounting policies, procedures, and internal controls.
• Assist with other accounting and administrative functions as needed.

What qualifications do you look for?

You might be the professional we’re looking for if you have:

• Authorization to permanently work in the United States without sponsorship.
• A High school diploma or equivalent.
• A minimum of (1) year of experience in Billing, accounts receivable, accounting, bookkeeping, finance, or a related field OR relevant education/coursework in accounting or finance.
• Experience reading and understanding contracts and using contract terms to establish billing requirements.
• Experience setting up customers and contracts in an accounting or ERP system.
• Knowledge of government contract billing, including FFP, T&M, LOE, and Milestone billing.
• Experience preparing and submitting invoices to government or commercial customers.
• Experience submitting invoices through WAWF, IPP, or other customer/government invoicing portals is strongly preferred.
• Strong attention to detail and accuracy.
• Basic understanding of accounting principles.
• Comfortable working with numbers and financial information.
• Proficiency with Microsoft Office, particularly Excel and Outlook.
• Strong organizational and time-management skills.
• Ability to handle confidential financial information appropriately.
• Ability to work independently while also collaborating effectively with a team.
• Strong written and verbal communication skills.

We Are Extra Impressed By Folks With

• An Associate's or Bachelor's degree in Accounting, Finance, Business, or a related field.
• 2–5 years of accounts receivable, billing, or government contract billing experience.
• Hands-on experience reading government contracts and setting up contract billing in an ERP/accounting system.
• Experience billing federal government contracts under FFP, T&M, LOE, and Milestone contract types.
• Experience submitting and tracking invoices through WAWF, IPP, or government/customer billing portals.
• Experience reviewing contract funding, CLINs, billing periods, labor, travel, and other direct costs before submitting invoices.
• Experience processing employee travel and expense reports, including reviewing receipts, coding expenses, and ensuring compliance with company policies.
• Experience with client billing of reimbursable expenses, including travel and other billable costs.
• Experience with an accounting or ERP system such as Deltek Costpoint, Unanet, QuickBooks, NetSuite, Sage, Microsoft Dynamics, or similar software.
• Experience with government contracting or federal government invoicing.
• Familiarity with accounts receivable aging, reconciliations, collections, or cash application.
• Experience working in a professional services or government contracting environment.

What kind of benefits does Terrestris Offer?

• We offer outstanding benefits including health, financial, and retirement benefits, as well as paid leave, professional development, tuition assistance, and work-life programs.
• Full-time and part-time employees working at least 20 hours a week on a regular basis are eligible to participate in our benefit programs.
• Other offerings may be provided for employees not within this category.

Terrestris is an Equal Opportunity Employer (EOE).

Qualified applicants are considered for employment without regard to age, race, color, religion, sex, national origin, sexual orientation, disability, or veteran status.

Applicants must be authorized to work in the U.S.