> Markdown version of [/jobs/ext/3799390-gccs-systems-administrator](https://www.wearedevelopers.com/jobs/ext/3799390-gccs-systems-administrator). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

---

# GCCS Systems Administrator

- **Company:** Mantech International Corporation
- **Location:** Miami, FL, United States
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Microsoft Windows, Systems Engineering, Unix, Configuration Management, CompTIA Security+, Databases, System Configuration, Linux, Disaster Recovery, Windows Servers, Oracle (Applications), Red Hat Enterprise Linux, Solaris (Operating System), Data Streaming, C4i, Information Technology, Patch Management, Vulnerability Analysis
- **Published:** October 17, 2026
- **Apply:** https://www.miamigigs.com/job.asp?id=3454782442&tx=VT6156TYT&pt=1&aff=0B19D771-A501-4A5E-8338-2A822B784D54&utm_source=Job%20Feed&utm_medium=textkernel&utm_campaign=DE&utm_term=0B19D771-A501-4A5E-8338-2A822B784D54

## About the Role

* 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., * 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.

Clearance Requirements:

 * Must hold a current/active top secret security clearance.

Physical Requirements:

 * Must be able to remain in a stationary position 50%.
 * Needs to occasionally move about inside the office to access file cabinets, office machinery, etc.
 * Frequently communicates with co-workers, management, and customers, which may involve delivering presentations. Must be able to exchange accurate information in these situations.

## Description

* 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.