Demo

Accountant 1

System Studies and Simulation (S3), Inc.
Huntsville, AL Full Time
POSTED ON 4/23/2026
AVAILABLE BEFORE 5/22/2026
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, Inc. has an immediate need for an Accountant 1 to join the corporate F&A team at our HQ in Research Park, Huntsville, AL.

This is not a teleworking position.

Responsibilities

  • Invoice processing; receiving, reviewing and entering vendor invoices into Costpoint.
  • Matching invoices against purchase order and receiving reports to ensure accuracy of payment.
  • Scheduling and initiating payments to vendor, ensuring that the the company considers early discount offerings.
  • Reconcile AP ledger accounts to vendor statement and assisting with monthly, quarterly and annual closing process.
  • Communicating with vendors to resolve discrepancies, payment issues, or statement mismatches.
  • Ensuring compliance with company policies and tax regulations, including processing 1099 forms.
  • Performs other duties as assigned.

Qualifications

  • BS/BA in finance or Accounting or Business Administration.
  • One year of experience with invoice processing; receiving, reviewing and entering vendor invoices into Costpoint.
  • Some experience scheduling and initiating payments to vendor, ensuring that the company considers early discount offerings.
  • Prefer experience reconciling AP ledger accounts to vendor statement and assisting with monthly, quarterly and annual closing process.
  • Prefer experience performing account analyses for a Federal contractor 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.

#S3inc#

Salary.com Estimation for Accountant 1 in Huntsville, AL
$60,976 to $73,844
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