Windows & Linux Systems Administrator

SMX is seeking a Windows / Linux System Administrator to support our customer on‑site at NAS Patuxent River. This role focuses on hands‑on support of hardware/software and operating systems.

The System Administrator will be responsible for ensuring all systems remain compliant, secure, and operational through proper administration including patching, scanning, backups, and more.

The ideal candidate will bring strong Windows and Linux experience.

• Provide hardware support for all customer systems
• Support installation, configuration, and sustainment of operating systems and application software
• Perform compliance assurance activities, including applying STIGs, patching, backups, and scans
• Troubleshoot technical issues across hardware, OS, applications, and network connectivity
• Administer Active Directory
• Collaborate with other system administrators and engineers to resolve issues and implement solutions
• Follow established processes for system changes, configuration, and compliance documentation
• Other duties as assigned

• Clearance Required:
  
  Top Secret
• 3+ years of related experience
• Windows Server/Domain Controller experience
• Linux experience
• Proficiency with Linux and Windows Servers and systems (RHEL/Ubuntu/Solaris/CentOS/Windows)
• Intermediate knowledge and experience in troubleshooting, critical thinking, and planning
• Strong written and verbal communication skills
• Excellent customer service skills
• Ability to work onsite at NAS Patuxent River

• Scripting Experience (Desired)
• ACAS knowledge (Desired)
• Familiarity with STIGs (Security Technical Implementation Guides) (Desired)

7/13/2026

$90,000 – $138,000 USD

Some key components of our robust benefits include health insurance, paid leave, and retirement.

SMX is an Equal Opportunity employer including disabilities and veterans.

Selected applicant may be subject to a background investigation and/or education verification.

SMX does not sponsor a new applicant for employment authorization or immigration related support for this position (i.e. H1B, F-1 OPT, F-1 STEM OPT, F-1 CPT, J-1, TN, E-2, E-3, L-1 and O-1, or any EADs or other forms of work authorization that require immigration support from an employer).