Accounting Operations Coordinator Jobs in Reston, VA

Position Overview

The One 23 Group is seeking an Accounting Operations Generalist to support the Corporate Controller and the day-to-day execution of the company's accounting operations. This hands-on role will support accounts payable, accounts receivable, payroll, general ledger activities, month-end close, government contract billing, reconciliations, expense administration, and financial reporting.

The Generalist will work closely with the Corporate Controller and collaborate with Finance, Human Resources, Program Control, Contracts, Project Managers, employees, and vendors to keep accounting transactions accurate, timely, well documented, and ready for review. The position is well suited for an accounting professional who wants broad exposure to corporate and government contracting accounting in a growing organization.

Key Responsibilities

Accounts Payable & Expense Administration

· Process vendor and subcontractor invoices, review coding and supporting documentation, obtain required approvals, and enter transactions accurately and timely.

· Prepare and support vendor payment runs, monitor accounts payable aging, research outstanding items, respond to vendor inquiries, and reconcile vendor statements.

· Review and process employee expense reports, travel reimbursements, and corporate card activity in accordance with company policies and accounting requirements.

· Maintain accurate vendor records and supporting documentation, including vendor setup information, W-9s, payment details, and information required for year-end 1099 reporting.

· Coordinate with Contracts, Program Control, Project Managers, and other corporate teams to resolve invoice discrepancies, validate subcontractor costs, and ensure expenses are charged to the appropriate projects and accounts.

Accounts Receivable, Billing & Cash Application

· Prepare and support customer invoicing for Cost Plus, Time & Materials (T&M), and Firm Fixed Price (FFP) contracts, including required billing schedules and supporting documentation.

· Post customer invoices and cash receipts, apply payments accurately, maintain accounts receivable records, and research unapplied or unidentified cash.

· Monitor accounts receivable aging and coordinate collection follow-up with Finance, Contracts, Program Control, Project Managers, and customers as appropriate.

· Reconcile billed and unbilled receivable activity and investigate differences between accounting records, contract billing support, and customer payment activity.

· Maintain accurate project, contract, funding, billing, labor category, and charge code information within Unanet and support billing through WAWF / PIEE when applicable.

Payroll, General Ledger & Month-End Close Support

· Support recurring payroll processing in Paylocity by validating approved employee changes, timekeeping inputs, compensation data, deductions, and other payroll information in coordination with Human Resources and Finance.

· Review labor and timekeeping data for completeness and accuracy and help ensure labor costs are recorded to the appropriate contracts, projects, tasks, and indirect charge codes.

· Prepare journal entries, account reconciliations, accruals, reclassifications, prepaid expense schedules, and other month-end accounting support under the direction of the Corporate Controller.

· Reconcile bank, cash, payroll, credit card, accounts receivable, accounts payable, and other assigned balance sheet or operating accounts and research reconciling items.

· Support the monthly and year-end close processes by completing assigned close tasks, preparing schedules and source documentation, and resolving accounting discrepancies on a timely basis.

Accounting Controls, Reporting & Process Support

· Maintain organized accounting files, reconciliations, workpapers, transaction support, and documentation consistent with company procedures and internal control requirements.

· Prepare recurring accounting reports and schedules, including AP aging, AR aging, cash activity, payroll reconciliations, billing status, and other information requested by the Corporate Controller and Finance leadership.

· Provide supporting schedules, source documentation, reconciliations, and transaction-level detail for financial audits, DCAA/DCMA requests, Incurred Cost Submission support, customer reviews, and other compliance activities.

· Support accounting process improvements, system enhancements, data cleanup, documentation updates, and other initiatives that improve accuracy, efficiency, visibility, and scalability.

Required Qualifications

· Bachelor's degree in Accounting, Finance, Business, or a related field, or equivalent relevant experience.

· Approximately 3-5 years of progressive accounting experience, with hands-on responsibility for transactional accounting and recurring accounting processes.

· Practical experience with accounts payable, accounts receivable, payroll support, journal entries, account reconciliations, and month-end close activities.

· Working knowledge of basic accounting principles, accrual accounting, expense classification, cash application, and balance sheet reconciliations.

· Experience working in an accounting or ERP system and maintaining accurate financial and transaction data.

· Strong Excel, analytical, organizational, and problem-solving skills with the ability to manage multiple recurring deadlines and follow issues through resolution.

· Strong attention to detail, sound judgment, professionalism, and the ability to work effectively with employees, vendors, customers, and cross-functional corporate teams.

Preferred Qualifications

· Experience working for a small or mid-sized federal government contractor or professional services company.

· Hands-on experience with Unanet or a comparable GovCon ERP/accounting system.

· Experience supporting payroll through Paylocity or a comparable payroll / HRIS platform.

· Familiarity with Cost Plus, T&M, and FFP government contract billing and WAWF / PIEE invoicing processes.

· Exposure to FAR cost principles, DCAA requirements, labor charging, indirect cost structures, or government contractor audit support.

· Experience with subcontractor invoice processing, employee expense administration, 1099 support, or project accounting is a plus.