Linux System Administrator - active Top Secret required

General Dynamics Information Technology, Inc.; Washington (District of Columbia); On-site; USD 120,000 - 150,000; Full time

Job summary

General Dynamics Information Technology, Inc. is seeking a Linux Administrator in Washington, DC. You will install, configure, and secure Linux servers, monitor performance, and automate tasks to support enterprise IT and DoD-grade environments.

You will work with IaC/CaC tools and CI/CD pipelines, ensuring reliability and secure software delivery. A Top Secret/SCI eligible clearance and US citizenship are required, with onsite location in the DC area.

Qualifications

• Bachelor's degree or equivalent combination of education and experience.
• At least 5 years hands-on Linux system administration in enterprise environments.
• Strong knowledge of major Linux distributions and admin tasks.
• Proficient in scripting to automate routine tasks.
• Familiarity with containerization platforms from an operations perspective.
• Exposure to DevSecOps concepts and secure software delivery practices.
• Experience with IaC/CaC tools and configuration management.
• Solid networking fundamentals and Linux service knowledge.

Responsibilities

• Install, configure, harden, and maintain Linux servers and services.
• Monitor performance, diagnose issues, and ensure reliability and scalability.
• Apply regular updates, patches, and security configurations.
• Use scripts and automation tools to streamline admin tasks.
• Troubleshoot hardware, software, and network issues with cross-team collaboration.
• Maintain IaC/CaC solutions and related configurations.
• Maintain CI/CD pipelines and ensure environment consistency.
• Keep accurate system documentation and change records.

Skills

Linux administration

Scripting

DevSecOps concepts

IaC/CaC familiarity

Networking basics

CI/CD pipelines

Documentation

Education

Bachelor's degree in CS/IT

Tools

Docker

Kubernetes

Terraform

Job description

Linux Administrator

Advance how our customers operate while you advance your career. Join GDIT as a Linux Administrator and you will build an impactful career in enterprise IT, collaborating with people who are driven and resourceful like you.

MEANINGFUL WORK AND PERSONAL IMPACT

As a Linux Administrator, the work you’ll do at GDIT will be impactful to the customer’s mission, your duties will include:

• Install, configure, harden, and maintain Linux-based servers and services in production and non-production environments.
• Proactively monitor system performance and availability, diagnose issues, and implement corrective actions to ensure reliability, scalability, and optimal performance.
• Execute regular system updates, patch management, and security configurations in alignment with organizational and industry best practices.
• Use scripts and standard automation tools to streamline and improve routine administrative tasks.
• Troubleshoot and resolve complex hardware, software, and network issues impacting Linux systems, collaborating with cross-functional teams as needed.
• Apply, maintain, and enhance Infrastructure as Code (IaC) and Configuration as Code (CaC) solutions using industry-standard tools and methodologies.
• Maintain and support CI/CD pipelines to streamline application deployment, configuration management, and environment consistency.
• Maintain accurate and up-to-date system documentation, including configurations, change records, and standard operating procedures.

WHAT YOU’LL NEED TO SUCCEED

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

• Bachelor’s degree in Computer Science, Information Technology, or a related discipline; or equivalent combination of education and experience.
• Minimum of 5 years of hands‑on experience as a Linux System Administrator in enterprise or production environments.
• Strong practical knowledge of major Linux distributions and their administration.
• Proficiency in scripting for automating routine system administration tasks.
• Familiarity with containerization platforms from an operations and support perspective.
• Exposure to DevSecOps concepts and tools, with an understanding of secure software delivery and operational practices.
• Experience administering environments that leverage Infrastructure as Code (IaC) and Configuration as Code (CaC) tools.
• Solid understanding of networking fundamentals, protocols (TCP/IP, DNS, HTTP, SSH), and core services in a Linux ecosystem.

REQUIRED

• Clearance Level Must Currently Possess: Top Secret and SCI eligible
• Location: Onsite
• Required: US Citizenship
• Required: DoD 8140 IAT II compliant

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 thatidentifiescareer 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, competitivepayand paid time off.
• Flexibility: Full-flex work week to own your priorities.
• Community: Award-winning culture of innovation and a military-friendly workplace.

OWN YOUR OPPORTUNITY

Explore an enterprise IT career at GDIT andyou’llfind endless opportunities to grow alongside colleagues who share your desire to drive operations forward.