Systems Administrator 3

General Dynamics - IT; Corridor North (MD); On-site; USD 120,000 - 190,000; Full time

Job summary

General Dynamics - IT is seeking a Systems Administrator to support a large-scale Linux environment, install COTS/GOTS/FOSS software, and manage day-to-day operations, monitoring, and issue resolution across compute, network, memory, and storage components. The role emphasizes system security, network configuration, and implementing OS enhancements to improve reliability and performance.

A TS/SCI w/ Polygraph clearance is required, with extensive Linux, scripting, virtualization, and IaC

Qualifications

• Experience with Linux system administration and large-scale clusters.
• Experience installing and maintaining COTS/GOTS/FOSS software.
• Security clearance TS/SCI w/ Polygraph is required.
• Scripting and automation experience using Bash/Python.
• Familiarity with virtualization and monitoring tools.

Responsibilities

• Provide day-to-day operations, monitoring, and problem resolution for a large-scale Linux system.
• Install, configure, and support COTS/GOTS/FOSS software in a Linux cluster environment.
• Maintain system security, configure network components, and implement OS enhancements.
• Utilize IaC concepts and automation tools to improve reliability and performance.

Skills

Linux CLI

Bash/Python scripting

Large-scale Linux cluster

VMware ESXi

Red Hat Satellite

Splunk

Nagios

Docker

Ansible

SaltStack

Security compliance

IaC principles

HPE OneView

Education

Technical Training, Certification(s) or Degree

Tools

VMware ESXi

Red Hat Satellite

Kubernetes

Docker

Nagios

SaltStack

Ansible

HPE OneView

Job description

SYSTEMS ADMINISTRATOR

Advance how our customers operate while you advance your career. Join GDIT as a 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

The System Administrator shall be responsible for providing support for a large-scale Linux system including installation of COTS/GOTS/FOSS software, day-to-day operations, monitoring, and problem resolution for all the compute, network, memory, and storage system components. In addition, the System Administrator shall maintain the system security integrity and configure network components, along with implementing operating systems enhancements to improve reliability and performance.

WHAT YOU’LL NEED TO SUCCEED

• Education: Technical Training, Certification(s) or Degree
• Experience: 15+ years of related experience
• Security clearance required: TS/SCI w/ Polygraph

Position Required Skills

• Experience using the Linux CLI
• Experience developing scripts using Bash/Python
• Experience in performing System Administration including installation, configuration, and support of COTS/GOTS/FOSS software in a large-scale Linux cluster environment
• General technical knowledge regarding compute, network, memory, and storage system components
• Experience with Red Hat Satellite systems management solution
• Familiarity using Splunk for ingesting, indexing, searching, monitoring, and analyzing big data
• Experience with the sustainment and support of large Linux clusters including day-to-day operations, monitoring and problem resolution
• Experience configuring and sustaining VMware ESXi/Virtualization environments
• Experience with IaC (Infrastructure as Code) principles and automation tools such as SaltStack and Ansible
• Experience with corporate STE/STN security compliance policies and procedures
• Experience using system monitoring tools such as HPE One View and Nagios
• Experience with containerization technologies such as Docker

Position Desired Skills

• Experience with container orchestration technologies such as Kubernetes
• Experience with distributed files systems such as Weka, CEPH, GPFS, and HDFS
• Experience with the Atlassian Suite of Tools such as Jira and Confluence

GDIT IS YOUR PLACE

• 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, and competitive pay and paid time off
• Community: Award-winning culture of innovation and a military-friendly workplace

OWN YOUR OPPORTUNITY

Explore an enterprise IT career at GDIT and you’ll find endless opportunities to grow alongside colleagues who share your desire to drive operations forward.

#IntelligenceEngineered

#MD_2026Alumni

#praxisjobs