GCCS Systems Administrator

MANTECH • Doral, FL

2d • Onsite

About The Position

MANTECH seeks a motivated, career and customer-oriented Global Command and Control (GCCS) Systems Administrator to join our team in Doral, FL. MANTECH is dedicated to safeguarding our nation through advanced tech and innovative solutions, and has been a trusted partner to the Department of Defense since 1968. This role involves working on cutting-edge projects in areas like Cybersecurity and IT.

Requirements

• Bachelor’s degree in Computer Science, Information Technology, Systems Engineering, or a related field with 5+ years of experience in systems administration OR a master’s degree and 3+ or more years of relevant experience OR an associate’s degree and 7+ or more years of relevant experience OR a high school diploma and 9+ or more years of relevant experience
• Proven experience administering and maintaining Global Command and Control System (GCCS) variants (GCCS-J, GCCS-A, or GCCS-M) in an enterprise environment.
• Strong background in Unix/Solaris, Linux (RHEL), and Windows server administration, including database management and command track synchronization.
• Experience maintaining system baselines, configuration management controls, and patch management protocols.
• Experience creating, maintaining, and communicating complex technical documentation and system baseline architecture diagrams.
• Must hold a current/active top secret security clearance.

Nice To Haves

• Relevant professional certifications such as CompTIA Security+, Red Hat Certified System Administrator (RHCSA), or Oracle Certified Associate (Solaris).
• Prior experience supporting U.S. Military Command operations, Combatant Command environments, or Department of Defense C4I infrastructure.
• Familiarity with DoD STIG implementation, DISA compliance standards, and automated vulnerability scanning tools (ACAS).
• Demonstrated ability to collaborate effectively across multi-disciplinary engineering teams in fast-paced operational environments.

Responsibilities

• Installing, configuring, maintaining, and administering Global Command and Control System (GCCS-J/GCCS-A/GCCS-M) servers and client workstations.
• Managing GCCS system baselines, database synchronization, track management, and C4I system interfaces across operational networks.
• Performing routine system administration, vulnerability patching, software updates, and diagnostic troubleshooting on Solaris, Linux, and Windows platforms.
• Maintaining system configuration baselines, operational logs, and data feed synchronization across theater command networks.
• Collaborating with cross-functional technical teams, network engineers, and operational staff to ensure high GCCS availability.
• Executing system backups, disaster recovery procedures, and security compliance verification for mission-critical command systems.
• Recommending and implementing continuous process improvements to enhance GCCS operational performance and data reliability.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior