Demo

System Administrator

System Studies and Simulation (S3), Inc.
Huntsville, AL Full Time
POSTED ON 5/29/2026
AVAILABLE BEFORE 6/27/2026
S3, Inc. is a rapidly growing woman-owned small business founded in 1991, and headquartered in Huntsville, AL. It provides technical, programmatic, and logistic services to the U.S. Department of Defense, other U.S. Government agencies, and Partner Nation militaries, co-located with Government requirements. The S3, Inc. staff is 70% veterans. The company operates under an ISO 9001/AS9100 certified Quality Management System.

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 develop Corporate Operations and 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!

Military experience is a plus when other requirements are also present.

Description

S³ system administrators are highly experienced IT professionals who plays a critical leadership role in designing, implementing, managing, and securing an organization's complex IT infrastructure and server environments. They are responsible for ensuring the stability, integrity, and efficient operation of enterprise-level information systems that support core organizational functions.

S³ requires a senior system administrator with networking experience to support four related companies in the defense industry, as a key contributor within the IT team.

Responsibilities

Provide technical assistance, guidance, training, and system documentation for system users in a DOD-funded contractor facility or a government facility.

Qualifications

  • Must have at least 12 years of IT System Administration with networking experience.
  • BS in Computer Science or Equivalent Experience.
  • A Secret Clearance is required.
  • Direct hands-on experience required with the following technologies:
    • System administration experience
      • Windows Server
      • Exchange Server (on-premises and O365)
      • Virtual Servers (VMware, AWS, Azure)
      • Event Log Auditing
      • Backups
      • Office 365
      • SharePoint Administration
    • Network Experience
      • CISCO Firewall Management
      • VPN
      • Wireless Access Points
    • Additional Experience Required
      • Administration of two-factor authentication systems
      • CMMC processes and POAM management
      • POTS and VoIP Phone System Management
    • Support Multiple Locations
      • Four Companies
    • Software Support
Bonus Qualifications (not Required)

  • Security
  • Network
  • Server
  • CCNA

Duty Location:

  • This is an on-site role in Huntsville, AL. No remote or hybrid options.

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.

Company: S3, Inc

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$81,423 to $103,203
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