Linux System Administrator - active Top Secret required

General Dynamics Information Technology (GDIT); Washington (District of Columbia); On-site; USD 108,000 - 127,000; Full time

Benefits offered by this job

AI-powered career tool

Internal mobility team

Total rewards package

Full-flex work weeks

Military-friendly workplace

Job summary

General Dynamics Information Technology (GDIT) is seeking a Linux Administrator to support enterprise IT operations. You will install, configure, harden, and maintain Linux servers across production and non-production environments, monitor performance, apply patches, and automate routine tasks.

The ideal candidate has a bachelor’s degree in CS or related field, 5+ years as a Linux administrator, proficiency with major Linux distributions, scripting, and IaC/CaC exposure.

Qualifications

• Bachelor’s degree in Computer Science, Information Technology, or a related discipline.
• Minimum of 5 years of hands-on Linux SysAdmin experience in enterprise environments.
• Strong knowledge of major Linux distributions and administration.
• Scripting proficiency for automating routine tasks.
• Familiarity with containerization platforms from an operations perspective.
• Exposure to DevSecOps concepts and secure software delivery.
• Experience with Infrastructure as Code (IaC) and Configuration as Code (CaC).
• Solid understanding of networking fundamentals (TCP/IP, DNS, HTTP, SSH).

Responsibilities

• Install, configure, harden, and maintain Linux servers in production and non-production environments.
• Monitor performance and availability; diagnose issues and implement corrective actions.
• Apply regular system updates, patching, and security configurations.
• Use scripts and automation tools to streamline admin tasks.
• Troubleshoot hardware, software, and network issues across Linux systems.
• Implement Infrastructure as Code (IaC) and Configuration as Code (CaC) solutions.
• Support CI/CD pipelines for deployment and environment consistency.
• Maintain up-to-date system documentation and change records.

Skills

Backup and Recovery

Critical Systems

IT Infrastructure

Education

Bachelor’s degree in Computer Science, Information Technology, or a related discipline

Job description

Req ID: RQ230954

Type of Requisition: Regular

Clearance Level Must Be Able to Obtain: Top Secret/SCI

Public Trust/Other Required: None

Job Family: IT Infrastructure and Operations

Skills:

Backup and Recovery (Software),Critical Systems,Information Technology (IT) Infrastructure

Experience:

5 + years of related experience

US Citizenship Required:

Yes

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 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 and 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 and you’ll find endless opportunities to grow alongside colleagues who share your desire to drive operations forward.

The likely salary range for this position is $107,744 - $126,500. 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.

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. We regularly review our Total Rewards package to ensure our offerings are competitive and reflect what our employees have told us they value most.

Our Identity Verification Process:

As part of the hiring process, we will ask you to complete an identity verification process that leverages advanced biometrics and artificial intelligence to ensure authenticity and protect against identity fraud. You are expected to be on camera during virtual interviews. We reserve the right to take your picture to verify your identity and prevent fraud. By proceeding, you authorize the collection, processing, and use of your biometric data for identity verification and security purposes.

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.

Join our Talent Community to stay up to date on our career opportunities and events at https://gdit.com/tc.

Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans