Systems Administrator with Security Clearance

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.