Systems Administrator

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.

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.