Systems Administrator

Job ID: 2618033
Location: San Diego, CA, US
Date Posted: 2026-10-26
Category: Information Technology
Subcategory: Sys Administrator
Schedule: Full-Time
Shift: Day Job
Travel: Yes - 10% of the time
Minimum Clearance Required: Secret
Clearance Level Must Be Able to Obtain: TS/SCI
Potential for Remote Work: ORA_ON_SITE
Description
SAIC is seeking an onsite Systems Administrator to support the Joint & Expeditionary Command and Control (JEXC2) program in San Diego, California. The qualified candidate will provide mid- to senior-level systems administration, troubleshooting, and operational support for enterprise, tactical, and deployable IT environments supporting mission-critical operations. The ideal candidate is hands-on, capable of working across the equipment and systems in use at the site, and communicates clearly and professionally with command personnel, customers, and onsite teammates.
Job Responsibilities:

• Administer, operate, maintain, and troubleshoot enterprise, tactical, and deployable IT systems supporting mission-critical operations.
• Provide hands-on technical support to users and onsite personnel; diagnose and resolve hardware, software, operating system, virtualization, and enterprise-service issues in accordance with mission requirements and established service levels.
• Install, configure, upgrade, and maintain hardware, software, operating systems, user accounts, access controls, Microsoft Windows and Linux systems, Active Directory, Group Policy, and Microsoft Exchange Server.
• Support and troubleshoot site IT infrastructure and related equipment as needed, coordinating with network specialists or other technical teams for issues requiring advanced network engineering.
• Administer and maintain VMware ESXi/vSphere virtualization environments and VMware Horizon Virtual Desktop Infrastructure (VDI).
• Support C2LAN environments, tactical IT systems, deployable equipment, and mission applications.
• Respond to system outages, service interruptions, exercises, deployments, and contingency operations; troubleshoot issues methodically, coordinate restoration activities, and help maintain operational readiness.
• Maintain technical documentation, configuration records, system procedures, and operational readiness documentation in accordance with DoD requirements.
• Communicate status, technical issues, and recommended actions clearly to command personnel, customers, and onsite teammates; support extended hours and alternate work schedules as required for 24/7 mission operations.

Qualifications
Desired Education and Experience:

• Bachelor's degree and 2 years of relevant experience, or 4 years of relevant experience in lieu of a degree.
• Mid- to senior-level experience in a Systems Administrator or similar hands-on technical systems role.

Required Certifications:

• Security+ certification.
• An IAT Level II or higher certification in addition to Security+.

Desired Skills and Experience:

• Experience administering and troubleshooting Linux environments.
• Experience with Active Directory, Group Policy, user accounts, access controls, and Windows Server roles and features supporting enterprise services.
• Experience with VMware ESXi/vSphere and virtualization technologies.
• Experience with VDI, preferably VMware Horizon.
• Experience supporting and troubleshooting IT infrastructure and coordinating with network teams when issues extend beyond systems administration.
• Experience administering and supporting Microsoft Exchange Server.
• Experience supporting C2 environments, tactical IT systems, and deployable equipment.
• Strong troubleshooting skills and the ability to diagnose and resolve complex systems, virtualization, hardware, software, and enterprise-service issues in a mission-critical environment.
• Excellent verbal and written communication skills, including the ability to explain technical issues clearly, provide concise status updates, and work effectively with command personnel, customers, and onsite teammates.
• Experience with C2LAN, JADOCS, GCCS-J, GSS-M, LMMT, and/or KG/TACLANE is highly desirable.

Required Clearance:

• A minimum of Secret clearance is required prior to the first day of employment, with the ability to obtain and maintain a TS/SCI clearance.
• Top Secret or higher clearance is preferred.

Target salary range: $80,001 - $120,000. The estimate displayed represents the typical salary range for this position based on experience and other factors.
SAIC is a premier technology integrator providing full life cycle services and solutions in the technical, engineering, intelligence, and enterprise information technology markets. SAIC is Redefining Ingenuity through its deep customer and domain knowledge to enable the delivery of systems engineering and integration offerings for large, complex projects. SAIC's approximately 15,000 employees are driven by integrity and mission focus to serve customers in the U.S. federal government. Headquartered in Reston, Virginia, SAIC has annual revenues of approximately $4.5 billion. For more information, visit saic.com. For information on the benefits SAIC offers, see .