Accounting Operations Specialist: AP/AR, Payroll & Close

The One 23 Group; Herndon (VA); On-site; USD 70,000 - 90,000; Full time

Job summary

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

The successful candidate will coordinate with Contracts, Program Control, and Project Managers across the

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 transactional accounting responsibilities.
• Experience with AP, AR, payroll support, journal entries, reconciliations, and month-end close.
• Knowledge of accrual accounting, expense classification, cash application, and balance sheet reconciliations.
• Experience with an ERP system and maintaining accurate financial data.
• Strong Excel and analytical, organizational, and problem‑solving skills.

Responsibilities

• Process vendor and subcontractor invoices, review Coding, approvals, and enter transactions.
• Prepare and support vendor payment runs and monitor AP aging.
• Review employee expense reports and corporate card activity.
• Maintain vendor records for year-end 1099 reporting.
• Coordinate with Contracts and Project Managers to resolve invoice discrepancies.
• Prepare customer invoicing for various contract types, post invoices and cash receipts, and monitor AR aging.
• Reconcile billed vs unbilled activity and ensure accurate project billing.
• Support payroll processing in Paylocity and validate timekeeping changes.
• Prepare journal entries, reconciliations, and month-end close under Corporate Controller.
• Reconcile various balance sheet accounts and assist with close processes.
• Prepare recurring reports and schedules for audits and leadership.

Skills

Excel

Analytical thinking

Organizational skills

Problem solving

Attention to detail

Cross-functional collaboration

Communication skills

Education

Bachelor's degree in Accounting, Finance, or related field

Tools

Unanet

Paylocity

ERP system

Job description

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

The successful candidate will coordinate with Contracts, Program Control, and Project Managers across the