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# Senior Linux Systems Administrator

- **Company:** Mantech International Corporation
- **Location:** Chantilly, VA, United States
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Active Directory, System Configuration, Linux, Firmware, Lightweight Directory Access Protocols (LDAP), Linux Servers, Office Suite, Ansible, Service Pack, Shell Script, Software Engineering, Data Streaming, System Software, Systems Integration, Scripting, Infrastructure Automation Frameworks, Information Technology
- **Published:** September 4, 2026
- **Apply:** https://www.careerboard.com/us/en/find-jobs-in-United-States/-6D45F0DCE9DFC84A3C/

## About the Role

* High School Diploma/GED with 7+ years of Information Technology experience
 * Progressively responsible experience configuring and maintaining Linux Servers in a large, complex server environment
 * Experience working in an organization with complex, intertwined systems, data flows, and applying security patches in a Linux environment
 * Experience creating, maintaining, and communicating complex information technology documentation
 * Experience with domain account management, particularly via Centrify, LDAP, and Active Directory
 * Experience with Shell Scripting to automate administrative tasks

Preferred Qualifications:

 * Experience Scripting with Ansible or similar technologies
 * Experience with the Sponsor's primary automation and configuration management tools
 * Self-starter with excellent people skills - able to work across teams and drive change throughout an organization

Clearance Requirements:

 * An active TS/SCI with Polygraph is required.

Physical Requirements:

 * Must be able to remain in a stationary position 50% of the time to operate a computer and other office productivity machinery.
 * Needs to occasionally move about inside the office to access file cabinets, office machinery, and maintain computers in the lab, including under desks and in the server closet.
 * Frequently communicates with co-workers, management, and customers, which may involve delivering presentations and exchanging accurate information.

## Description

As a Linux Systems Administrator, you will help maintain and enhance the Sponsor's Linux environment alongside a talented team. You will be responsible for the operating system software and its seamless integration with hardware and applications across the organization., * Planning, testing, installing, integrating, and maintaining new and upgraded versions of the relevant operating systems

 * Building and hardening Linux servers, and establishing configuration baselines while applying all appropriate security and firmware patches in a timely manner
 * Developing test plans/procedures, managing operating system lifecycles, and designing interfaces to external systems
 * Researching, troubleshooting, and resolving operating system problems efficiently by collaborating with application development and network teams
 * Maintaining and updating complex documentation on the operating system configuration and all other areas of responsibility
 * Demonstrating strong communication and collaboration skills to work effectively and proactively across a large organization of dispersed teams


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