Senior Linux Systems Administrator - Alexandria, VA

ATTENTION MILITARY AFFILIATED JOB SEEKERS - Our organization works with partner companies to source qualified talent for their open roles. The following position is available to Veterans, Transitioning Military, National Guard and Reserve Members, Military Spouses, Wounded Warriors, and their Caregivers. If you have the required skill set, education requirements, and experience, please click the submit button and follow the next steps. All positions are onsite, unless otherwise stated.The Test and Training Enabling Architecture (TENA) program at Leidos is looking to add a Senior Linux Systems Administrator. Our mission is to develop tools for the United States Department of Defense test and training communities, to increase the speed of the development cycle, to get capabilities to the warfighter more rapidly. The Sr. System Administrator will work within a team engineers, developers and system administrators adding new capabilities to our enclaves, as well as ensuring the existing systems are secure and performing as intended.This position is located in Alexandria, VA and you must be able to work on site as needed. There is an ability to telework 2-3 days a week. All candidates must be within a reasonable driving distance to the work location to be considered.Primary Responsibilities: Provide support for installing and maintaining Linux serversProvide technical leadership for migrating on premise infrastructure to hybrid cloud solution.Provide support for troubleshooting from OS to application level issuesManage networking equipment including switches, routers and firewallsManage configuration and maintenance of core enclave infrastructure services including DCHP, DNS, e-mail, Apache Web Servers, Tomcat application servers, Atlassian applications, MariaDB database servers.Configure and monitor security tools required for DoD networks.Participate and contribute to design discussions related to improving the capabilities, performance and security posture of new and existing services,

Created: 2026-02-09