Demo

System Administrator

System Studies and Simulation (S3), Inc.
Huntsville, AL Full Time
POSTED ON 4/11/2026
AVAILABLE BEFORE 5/10/2026
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. requires a System Administrator with networking experience join the corporate IT team at our Huntsville, AL., HQ in Research Park.

This is not a teleworking position. US citizenship is required.

Description

The System Administrator will be a highly experienced IT professional 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.

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), Nutanix AHV
      • Event Log Auditing
      • Backups
      • Office 365
      • SharePoint Administration
    • Network Experience
      • Fortinet 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
      • Security Monitoring/Patching
    • Support Multiple Locations
      • Four Companies
    • Software Support
  • 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

Salary.com Estimation for System Administrator in Huntsville, AL
$80,949 to $102,601
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