Accounts Receivable​/Payable Administrator

Why Join Rincon Research Corporation (RRC)?

At Rincon Research Corporation, our primary business is innovating, developing, and fielding digital signal processing (DSP) products and services for the United States Defense and Intelligence Communities in support of national security.

Rincon Research Corporation (RRC), an employee owned company, is seeking a highly motivated and detail-oriented Payroll & Accounting Administrator to join our dynamic finance team. This role is ideal for a results-driven professional who thrives in a fast-paced environment and enjoys supporting both payroll operations and broader accounting functions. The position will spend the majority of its time supporting payroll activities, including timesheet compliance, payroll processing, payroll-related reconciliations, and administration of employee benefit and retirement plans.

In addition to payroll responsibilities, this role will assist with month-end close activities, including preparing journal entries, analyzing transactions, and performing account reconciliations. The position will also support contract billing and accounts receivable functions by preparing timely and accurate invoices and supporting documentation for government clients in compliance with contract requirements and FAR regulations.

• Support and process biweekly payroll for all employees, ensuring accuracy, timeliness, and compliance with company policies and applicable regulations.
• Monitor and enforce timesheet compliance and coordinate with managers and employees to resolve discrepancies.
• Administer and reconcile payroll-related benefits and retirement plans, including ESOP contributions, vesting, deductions, and reporting.
• Prepare payroll-related journal entries, reconciliations, and supporting schedules for month-end close activities.
• Assist with general ledger account reconciliations, including payroll clearing and benefit-related accounts.
• Prepare accurate customer invoices and supporting documentation in accordance with contract requirements, company practices, and government regulations.
• Participate in accounts receivable activities, including cash posting, collections, invoice tracking, and reconciliation efforts.
• Investigate and reconcile aged receivables, payroll discrepancies, and unidentified deductions in collaboration with Contracts and Program teams.
• Support compliance with internal controls, accounting policies, and government contracting requirements.
• Work closely with the Payroll Manager and Billing Team to ensure efficient coordination across finance functions.
• Respond to internal and external customer inquiries related to payroll, billing, and account activity.
• Maintain confidentiality and accuracy of employee payroll and financial information.

• Support a variety of general accounting and administrative tasks as needed.
• Assist with audits, reporting requests, and special projects.
• Participate in process improvement initiatives related to payroll and accounting operations.

• Bachelor’s degree in Accounting, Finance, Business Administration, or related field preferred, but not required.
• Knowledge of payroll processes and basic accounting principles.
• Strong attention to detail with excellent organizational and problem-solving skills.
• Ability to handle confidential information with professionalism and discretion.
• Excellent verbal and written communication skills.
• Ability to work effectively in a collaborative team environment.
• Goal-oriented with the ability to meet deadlines and adhere to company policies and procedures.
• Ability to work effectively and professionally under pressure.
• Proficiency in Microsoft Office applications, particularly Excel, Word, and Outlook.
• US CITIZENSHIP REQUIRED

• Experience processing payroll in a multi-department or government contracting environment.
• Knowledge of government contracting regulations such as FAR, DFARS, and related compliance requirements.
• Experience with payroll systems, ERP/MRP platforms, and timekeeping software.
• Strong understanding of payroll…