Systems Administrator 3

Praxis Engineering; Maryland; On-site; USD 202,000 - 274,000; Full time

Benefits offered by this job

Medical plan options

401(k) with company match

Paid time off

Disability benefits

Life insurance

Job summary

GDIT is seeking a Systems Administrator to advance customer operations and your career in enterprise IT. You will install, configure, monitor, and support a large-scale Linux cluster with COTS/GOTS/FOSS software, ensuring security and reliability across compute, network, memory, and storage components.

The role requires TS/SCI with polygraph, 15+ years of related experience, and strong Bash/Python scripting, Red Hat Satellite, VMware ESXi, and container tech like Docker; it offers a path to

Qualifications

• 15+ years of related experience.
• Experience with Linux cluster environments and scripting in Bash/Python.
• Security clearance TS/SCI w/ Polygraph required.
• Experience with COTS/GOTS/FOSS software and system administration.

Responsibilities

• Install, configure, and support large-scale Linux systems.
• Monitor performance and resolve complex technical issues.
• Maintain system security integrity and apply OS enhancements.
• Operate and troubleshoot virtualization and containerization (Docker).
• Utilize infrastructure as code concepts and automation tools.

Skills

Bash (Scripting Language)

Education

Technical Training / Certification(s) / Degree

Tools

Linux Command

Red Hat Satellite

VMware ESXi

Job description

Job Qualifications

Bash (Scripting Language), COTS Implementations, Linux Command, Python (Programming Language)

Type Of Requisition

Regular

Clearance Level Must Currently Possess

Top Secret SCI + Polygraph

Clearance Level Must Be Able To Obtain

Top Secret SCI + Polygraph

Public Trust/Other Required

None

Job Family

IT Infrastructure and Operations

Skills

Bash (Scripting Language), COTS Implementations, Linux Command, Python (Programming Language)

Certifications

None

Experience

15 + years of related experience

US Citizenship Required

Yes

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

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

• 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

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, 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

The likely salary range for this position is $202,300 - $273,700. This is not, however, a guarantee of compensation or salary. Rather, salary will be set based on experience, geographic location and possibly contractual requirements and could fall outside of this range.

Scheduled Weekly Hours

40

Travel Required

None

Telecommuting Options

Onsite

Work Location

USA MD Annapolis Junction

Total Rewards At GDIT

• Our benefits package for all US-based employees includes a variety of medical plan options, some with Health Savings Accounts, dental plan options, a vision plan, and a 401(k) plan offering the ability to contribute both pre and post-tax dollars up to the IRS annual limits and receive a company match.
• To encourage work/life balance, GDIT offers employees full flex work weeks where possible and a variety of paid time off plans, including vacation, sick and personal time, holidays, paid parental, military, bereavement and jury duty leave.
• To ensure our employees are able to protect their income, other offerings such as short and long-term disability benefits, life, accidental death and dismemberment, personal accident, critical illness and business travel and accident insurance are provided or available.

About Our Work

We are GDIT. A global technology and professional services company that delivers technology solutions and mission services to every major agency across the U.S. government, defense and intelligence community. Our 26,000 experts extract the power of technology to create immediate value and deliver solutions at the edge of innovation. We operate across 50+ countries worldwide, offering leading mission-ready capabilities in AI, cloud, cyber and software development.

Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans