Accountant 2- AP

S3, Inc. is a rapidly diversifying business, approaching 1000 employees, founded in 1991, and headquartered in Huntsville, AL. S³, Inc. provides technical, programmatic, logistics, maintenance, and training services to space, missile and aviation, other Government agencies, Partner Nation militaries, and DoW requirements, at CONUS and OCONUS sites co-located with customer requirements. With a staff that is 85% veterans, the company operates under a ISO 9001/AS9100 certified Quality Management System.

S³’s Agile Engineering Division (AED) supports PAE/PMO technical services for offensive and defensive fires and for PAE Aviation and PMO's.

S3, Inc. has wholly owned subsidiaries that expand the customer base and increase our annual growth rate: KBFS – provides aviation pilot training, heavy lift, aircraft maintenance, and related aircraft services to government and commercial requirements IAW multiple FAA certifications; S3I – provides OCONUS FMS technical services, maintenance, and aviation platform training; and GLSS – provides SCA/CBA contract aviation maintenance.

S3, Inc. and its subsidiaries are recruiting to expand and augment staff for contract growth. We are proud to offer above-industry-standard benefits and encourage our team members to build fulfilling careers with our mission-focused leadership. Come work with us, and let us build something great together!

S³’s AED is seeking a Director of Missiles and Space to provide business capture, contracts management, proposal development, and program leadership in support of projects at our HQ in Cummings Research Park, Huntsville, AL.

S³, Inc. has an immediate need for an AP Accountant who will be part of our corporate F&A team at our Research Park HQ in Huntsville, AL.

This is not a teleworking position.

We do not use 3rd party recruiting agencies.

Description:

The AP Accountant will report directly to the Accounting Manager and will prepare and submit high volume vendor invoices for all projects within assigned portfolio, ensuring invoices are paid accurately and consistently within a timely basis.

Responsibilities:

• Processing high volumes of vendor invoices, ensuring proper approval coding, matching to purchase orders (POs), and accurate data entry.
• Scheduling and running payments via check, ACH, or wire transfer, ensuring compliance with payment terms.
• Reconciling AP aging, vendor statements, and expense reports, and identifying discrepancies or duplicate payments.
• Corresponding with suppliers to resolve invoice disputes, payment issues, or account inquiries.
• Maintaining organized digital or paper records and processing 1099 tax forms annually.

Qualifications:

• Bachelor’s Degree in Accounting, Business Administration, a related field is preferred.
• At least 3 years of accounts payable experience in a medium to high AP volume processing environment.
• At least 2 years of Deltek Costpoint experience and able to run CP reports.
• Possess a 4-5 proficiency level with Excel.
• Audit support experience for internal and external audits is a plus.

Systems Studies and Simulation, Inc. provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws. This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation and training.

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