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Senior Linux Systems Administrator

Job in Tampa, Hillsborough County, Florida, 33646, USA
Listing for: General Dynamics Information Technology
Full Time position
Listed on 2026-01-01
Job specializations:
  • IT/Tech
    Systems Administrator, IT Support
Job Description & How to Apply Below

Advance how our customers operate while you advance your career. Join GDIT as a Senior Linux Systems Administrator and build an impactful career in enterprise IT, collaborating with people who are driven and resourceful like you.

MEANINGFUL WORK AND PERSONAL IMPACT:

As a Senior Linux Systems Administrator, the work you’ll do at GDIT will be impactful to the mission of supporting the CITS contract for USCENTCOM. You will play a crucial role in management, maintenance, and optimization of Linux-based servers in a complex enterprise environment with over 5,000 users, 1,000 servers, and 10,000 endpoints.

  • Oversee the deployment, configuration, and maintenance of Linux servers, virtual machines, and networking devices.
  • Play a key role in troubleshooting server performance, ensuring security compliance, and addressing system availability issues.
  • Collaborate with other IT teams to implement infrastructure solutions that meet operational requirements and contribute to the overall efficiency and security of the organization’s systems.
WHAT YOU’LL NEED TO SUCCEED :

Bring your technology expertise and drive for innovation to GDIT. The Systems Administrator Principal must have:

  • Certification: Applicable DoD 8140 or DoD 8570 Certification

  • Experience: 5+ years of related experience

  • Technical skills:

    • Building, deploying, and maintaining Linux server environments.
    • Configuring and managing Linux services such as Apache, Nginx, DNS, DHCP, and LDAP.
    • Ensuring the proper functioning and security of web servers, including SSL/TLS certificate lifecycle management.
    • Tuning system performance, ensuring uptime, and maintaining detailed system documentation.
    • Implementing critical system patches and updates across Linux environments.
    • Troubleshooting, diagnosing, and resolving complex systems issues that may not have previously documented solutions.
    • Developing and enforcing system policies to optimize performance and security.
    • Collaborating with other IT teams to design and implement Linux-based solutions that align with organizational requirements.
    • Participating in system upgrades, migrations, and new deployments of Linux-based infrastructure.
    • Providing mentorship and technical guidance to junior administrators and team members to foster a deeper understanding of Linux systems.
    • Reviewing and preparing system documentation, process guides, and troubleshooting procedures.
    • Supporting projects aimed at improving the security, efficiency, or capability of the Linux environment.
    • Ensuring that problems are tracked, escalated, and resolved at the appropriate priority level.
    • Producing data sets and reports to inform management of system performance and process improvements.
  • Desired

    Skills:

    • Red Hat Certified System Administrator (RHCSA) or higher.
    • ITIL 4 Foundation Certification.
    • Familiarity with USCENTCOM operational data systems, networks, and mission requirements.
  • Security clearance level: TS/SCI clearance required
  • Role requirements:

    • Demonstrated proficiency in managing and troubleshooting Red Hat / CentOS Linux servers.
    • Proven experience in systems administration and infrastructure management.
    • Ability to review, modify, and prepare comprehensive documentation for systems administration tasks such as system configurations, troubleshooting guides, and best practices.
GDIT IS YOUR PLACE :

At GDIT, the mission is our purpose, and our people are at the center of everything we do.

  • Growth: AI-powered career tool that identifies career steps and learning opportunities
  • Support:
    An internal mobility team focused on helping you achieve your career goals
  • Rewards:
    Comprehensive benefits and wellness packages, 401K with company match, competitive pay and paid time off
  • Community:
    Award-winning culture of innovation and a military-friendly workplace

#ARMA

#CENTCOMCITS

#GDITPRIORITY

#J-18808-Ljbffr
Position Requirements
10+ Years work experience
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