Linux Systems Administrator (Secret) (On-site)

Clearance Level
Systems Administration
Dahlgren, Virginia
Onsite Workplace
Key Skills For Success


Linux Firewalls

System Administration

REQ#: RQ157761
Public Trust: SSBI (T5)
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

We are GDIT. The people supporting some of the most complex government, defense, and intelligence projects across the country. We deliver. Bringing the expertise needed to understand and advance critical missions. We transform. Shifting the ways clients invest in, integrate, and innovate technology solutions. We ensure today is safe and tomorrow is smarter. We are there. On the ground, beside our clients, in the lab, and everywhere in between. Offering the technology transformations, strategy, and mission services needed to get the job done.

GDIT is working to support the day to day IT, network, and cyber systems for the Naval Surface Warfare Center Dahlgren Division and have an opportunity for a Linux Systems Administrator.

The Systems Administrator will be responsible for the day-to-day operation of networks in support of computer systems, including local area networks (LANs), wide area networks (WANs), network segments, intranets, and other data communication systems. Typical duties include but are not limited to:

  • Identifying performance problems and malfunctions, addressing systems and equipment problems, performing hardware checks using the necessary testing tools and maintaining hardware.
  • Responsible for ensuring that the support and management of large scale messaging and collaboration environments and tools are maintained to the highest standard with maximum levels of productivity and efficiency.
  • Proper installation and rack mounting of equipment, including adds and moves
  • Upgrading and configuring BIOS, firmware, drivers, and other software
  • Imaging and initial configuration of various types of equipment
  • Installation and configuration of server components and modules
  • Troubleshoot hardware, infrastructure issues and repairing/replacing failed parts
  • Processing returns for products under warranty
  • Escorting vendors when required
  • Manage and complete trouble tickets
  • Tracking infrastructure usage and availability, including space and power
  • Work closely with Facilities team on HVAC and power issues
  • Maintaining diagrams and inventory of equipment and assets
  • Lifecycle management of support center hardware, including recycling and sparing
  • Creating and revising SOPs for infrastructure maintenance and tasks

Required Experience:

Three (3) years of professional experience in Unix and/or Linux system administration of networks and software systems. with specific experience in:

  • System backup and recovery

  • Basic software management

  • Security management

  • Library management

  • Installation and configuration of hardware

  • Operational systems and COTS software

  • Operating computer systems in different operating environments

  • Sizing, performance, tuning, hardware/software/network trouble shooting and resource allocation.

  • Different network protocols including TCP/IP

  • Major network security tools such as: firewalls, knowledge of computing and networking vulnerabilities, attack methods and latest detection methods.

  • Self-motivated, team player

  • Heavy focus on organization and consistency

  • Familiar with shipping and receiving

  • Excellent written and oral communication

  • Must be able to lift about 50 pounds as needed

Per DoD Directive 8570.01-M or successor, this position requires IAT Level 2 or higher and requires this position to be designated as an IT Level 1.


  • Demonstrated experience with DoD and US Navy enterprise IT networks and systems.
  • Eligible to attain Top Secret Security Clearance
Work Requirements
Years of Experience

3 + years of related experience

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


CompTIA - Security+ CE - CompTIA

Travel Required

Less than 10%


U.S. Citizenship Required

About Our Work

We are GDIT. A global technology and professional services company that delivers consulting, technology and mission services to every major agency across the U.S. government, defense and intelligence community. Our 30,000 experts extract the power of technology to create immediate value and deliver solutions at the edge of innovation. We operate across 30 countries worldwide, offering leading capabilities in digital modernization, AI/ML, Cloud, Cyber and application development. Together with our clients, we strive to create a safer, smarter world by harnessing the power of deep expertise and advanced technology.

GDIT is an Equal Opportunity/Affirmative Action employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or veteran status, or any other protected class.