Senior Linux Systems Administrator

Type of Requisition:

Regular

Clearance Level Must Currently Possess:

Top Secret/SCI

Clearance Level Must Be Able to Obtain:

Top Secret/SCI

Public Trust/Other Required:

None

Job Family:

IT Infrastructure and Operations

Job Qualifications:

Skills:

Linux, Linux Programming, Troubleshooting

Certifications:

None

Experience:

5 + years of related experience

US Citizenship Required:

Yes

Job Description:

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