Systems Administrator

Systems Administrator

Job ID: 2618033

Location: San Diego, CA, United States

Date Posted: Oct 26, 2026

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: On-Site

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Job Description

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.

Overview

SAIC accepts applications on an ongoing basis and there is no deadline.

SAIC is a premier mission integrator focused on advancing the power of technology and innovation to serve and protect our world. Our robust portfolio of offerings across the defense, space, intelligence, and civilian markets includes secure high-end solutions in mission IT, enterprise IT, engineering services, and professional services. We integrate emerging technology, rapidly and securely, into mission critical operations that modernize and enable critical national imperatives.

We are approximately 23,000 strong; driven by mission, united by purpose, and inspired by opportunities. SAIC is an Equal Opportunity Employer. Headquartered in Reston, Virginia, SAIC has annual revenues of approximately $7.3 billion. For more information, visit saic.com. For ongoing news, please visit our newsroom.

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