Senior Linux Systems Administrator

Public Trust: None

Requisition Type: Regular

Your Impact

Own your opportunity to work with the largest government agency in the nation. Make an impact by advancing the Department of Defense’s mission to keep our country safe and secure.

Job Description

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. 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.

• 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

Work Requirements

Years of Experience

5 + years of related experience

* may vary based on technical training, certification(s), or degree

Certification

CompTIA Security+ CE | CompTIA - CompTIA

Travel Required

Less than 10%

Citizenship

U.S. Citizenship Required