Linux Systems Administrator

Company: Leidos
Location: Dayton
Posted on: April 1, 2026

Job Description:

If you're interested in being a part of an extraordinary mission, working with our customer who runs the DoD’s largest supercomputing centers and operating some of the most powerful supercomputers in the world, we could use your experience and enthusiasm! You will be providing your Linux Systems Administration expertise to ensure DoD scientists have reliable access to these critical resources and in turn, will be directly supporting the warfighter. All work will be performed at our customer’s site on Wright Paterson Airforce Base, OH. A Secret Clearance is required to begin work on the program. So, what will you be doing in this role? Provides for RedHat Linux systems administration, performance tuning, client security administration, systems software support, and technology assessments in support of a multi-platform UNIX environment. Performs systems enhancement, configuration, maintenance, installation, interfaces, coordination, and software installations and upgrades to UNIX operating systems and layered software packages. Monitors and tunes systems to achieve optimum level of performance in accordance with established policies, procedures, and service level agreements. Performs acceptance testing of modules, subsystems, and total systems. Will be responsible to perform software installation and configuration. Monitoring log files, performance issues, and the production environment for mission critical systems Demonstrating ability to set priorities and organize work to meet deadlines Ensuring compliance with established standards, policies, and configuration guidelines These are the required qualifications Must hold an active in scope SECRET clearance or have the ability to obtain Interim SECRET eligibility prior to start. (US Citizenship required) Must hold a bachelor’s degree and at least 4 years of equivalent experience, or a master’s degree and 2 years of experience. Must hold current DOD 8570 IAT II certification (Linux, CCNA-Security, CND, CySA, GICSP, GSEC, Security CE, or SSCP) prior to start. Communicates effectively both orally and in a written form with users and office staff Experience and proficiency with the LAMP web server stack These are the preferred qualifications Ansible or equivalent configuration management experience Hands-on experience patching systems and applications within a DoD environment Experience managing containerized services within Kubernetes Ability to write, diagnose, and optimize scripts written in bash, python, or perl Familiarity managing virtual systems within VMware If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares. Original Posting: February 18, 2026 For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above. Pay Range: Pay Range $73,450.00 - $132,775.00 The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

Keywords: Leidos, Indianapolis , Linux Systems Administrator, IT / Software / Systems , Dayton, Indiana