Terrestris LLC

Junior GovCon Billing, Accounts Receivable Clerk

Terrestris LLC
Posted 10/20/2026full-timeSpringfield • Virginia • United StatesJunior💰 $50,000 - $60,000 per yearWebsite
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Core Competencies

Role fit
Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates expertise in government contract billing processes, including invoice preparation and submission through various portals. Proficient in accounting principles and experienced in using ERP systems for customer and contract management.

Highest-signal resume keywords
Government Contract Billing ExperienceInvoice Preparation and SubmissionERP System ProficiencyAttention to DetailStrong Communication Skills

Tech Stack

Tools & technologies
ERP

About the role

Key responsibilities & impact
  • 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 in the accounting/ERP system
  • Prepare, process, and distribute customer and government invoices accurately and on schedule
  • Review contracts and supporting documentation to ensure invoices comply with contract requirements
  • Apply 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 contract terms
  • Prepare invoices for labor, travel, other direct costs, and reimbursable expenses
  • Submit government invoices through WAWF, IPP, or applicable government/customer invoicing portals
  • Track invoice submissions, statuses, rejections, suspensions, approvals, and payments
  • Follow up on outstanding invoice issues
  • Review invoices and supporting documentation for completeness, accuracy, and compliance
  • Support daily accounts receivable and billing operations, including payment processing, account reconciliation, collections support, financial recordkeeping, customer and contract setup, and expense processing

Requirements

What you’ll need
  • Authorization to permanently work in the United States without sponsorship
  • High school diploma or equivalent
  • At least 1 year of government contract billing experience (billing, accounts receivable, accounting, bookkeeping, finance, or a related field)
  • 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
  • Associate's or Bachelor's degree in Accounting, Finance, Business, or a related field is an additional advantage
  • Experience with Deltek Costpoint, Unanet, QuickBooks, NetSuite, Sage, Microsoft Dynamics, or similar software is an additional advantage

Benefits

Comp & perks
  • Health benefits
  • Financial benefits
  • Retirement benefits
  • Paid leave
  • Professional development
  • Tuition assistance
  • Work-life programs
  • Award programs recognizing exceptional performance and superior demonstration of service standards

ATS Keywords

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Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills
Government Contract BillingInvoice ProcessingAccounts ReceivableAccounting PrinciplesBilling Terms UnderstandingFinancial RecordkeepingExpense ProcessingContract ReviewBilling Method DeterminationCustomer Setup
Soft Skills
Strong Organizational SkillsTime-Management SkillsAbility to Work IndependentlyCollaboration SkillsConfidentiality Handling
Tools & Technologies
WAWFIPPDeltek CostpointUnanetQuickBooksNetSuiteSageMicrosoft DynamicsMicrosoft ExcelMicrosoft Outlook
Industry Keywords
Firm-Fixed-Price (FFP)Time & Materials (T&M)Level of Effort (LOE)Milestone BillingContract Line ItemsBilling InformationFundingPeriod of PerformanceInvoicing RequirementsGovernment Contracts