Linux Systems Administrator

Reposted 13 Days Ago
Be an Early Applicant
Dayton, OH, USA
In-Office
73K-133K Annually
Mid level
Information Technology • Software
The Role
Provide RedHat/UNIX systems administration and performance tuning for DoD supercomputing environments; install, configure, patch, and monitor systems and software; perform acceptance testing, ensure security and compliance, and support mission-critical LAMP services.
Summary Generated by Built In
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.

Top Skills

Ccna-Security
Cnd
Cysa+
Dod 8570 Iat Ii
Gicsp
Gsec
Lamp
Linux+
Redhat Linux
Security+ Ce
Sscp
Unix
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The Company
Alexandria, VA
27,104 Employees
Year Founded: 1969

What We Do

We Are Leidos For 50 years we have been tackling some of the biggest problems that face our nation and our world. OUR MISSION Through our culture of innovation and history of performance, we develop deep customer trust built on integrity and create enduring solutions that improve our world. Leidos is a science and technology solutions leader working to address some of the world’s toughest challenges in the defense, intelligence, homeland security, civil, and healthcare markets. The company’s 43,000 employees support vital missions for government and commercial customers. Headquartered in Reston, Va., Leidos reported annual revenues of approximately $11.09 billion for the fiscal year ended January 3, 2020. Leidos was cited for the meaningful work employees perform that is challenging, impactful, and aligned with our customers’ missions as reasons professionals want to work and stay at our company. Leidos has also been named to lists including Forbes’ Best Employers for Diversity, Forbes’ America’s Best Employers for Women, Military Times Best for Vets Employers, and Ethisphere Institute’s World's Most Ethical Companies®. Employees enjoy career enrichment opportunities available through mobility and development and experience rewarding relationships with supportive supervisors and talented colleagues and customers. Employees appreciate our flexible work environment, allowing for and encouraging a true work-life balance. Our professionals are also excited about our Employee Resource Groups, like the newly launched Collaborative Outreach with Remote and Embedded Employees (CORE), which strives to create an environment where every employee, regardless of location, feels fully engaged as a valued employee of Leidos. Your most important work is ahead.

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