GCCS Systems Administrator

ManTech; Florida; On-site; USD 120,000 - 170,000; Full time

Job summary

MANTECH seeks a career- and customer-oriented Global Command and Control Systems Administrator in Doral, FL. You will install, configure, and maintain GCCS-J/GCCS-A/GCCS-M servers and workstations, ensuring baselines, synchronization, and interfaces meet mission requirements.

The role demands 5+ years of systems admin experience across Unix/Solaris, Linux (RHEL), and Windows, plus DoD C4I familiarity and STIG/ACAS exposure.

Qualifications

• Bachelor's degree in a related field with 5+ years of systems administration experience.
• Or a master's degree with 3+ years of relevant experience.
• Or an associate's degree with 7+ years of relevant experience.
• Or a high school diploma with 9+ years of relevant experience.
• Proven experience administering GCCS variants in an enterprise environment.
• Strong Unix/Solaris, Linux (RHEL), and Windows server admin background.

Responsibilities

• Install, configure, maintain, and administer GCCS servers and client workstations.
• Manage GCCS baselines, database synchronization, track management, and C4I interfaces.
• Perform routine system administration, patching, and diagnostics on Unix, Linux, and Windows platforms.
• Maintain configuration baselines, logs, and data feed synchronization across networks.
• Collaborate with cross-functional teams to ensure GCCS availability.
• Execute backups, disaster recovery, and security compliance verification.
• Suggest and implement process improvements for GCCS performance.

Skills

GCCS administration

Unix/Solaris

Linux (RHEL)

Windows Server

Database management

Patch management

Education

Bachelor's degree in CS/IT/Systems Eng

Master's degree (optional)

Associate's degree with experience

High school diploma with extensive experience

Tools

GCCS-J/GCCS-A/GCCS-M

Solaris

ACAS

DoD STIG

RHCSA

Windows Server administration

Job description

MANTECH seeks a motivated, career and customer-oriented Global Command and Control ( GCCS) Systems Administrator to join our team in Doral, FL .

Responsibilities include but are not limited to:

• 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.

Minimum Qualifications:

• 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.

Preferred Qualifications:

• 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.

MANTECH International Corporation considers all qualified applicants for employment without regard to disability or veteran status or any other status protected under any federal, state, or local law or regulation.

If you need a reasonable accommodation to apply for a position with MANTECH, please email us at [e-mail] and provide your name and contact information.