Senior Linux Systems Administrator

Leidos; Bath Township (OH); On-site; USD 92,000 - 167,000; Full time

Job summary

Leidos at Wright-Patterson Air Force Base in Dayton, OH is seeking a Linux Systems Administrator to support DoW supercomputing centers. The role includes serving as Deputy Team Lead, RedHat Linux administration, security, and performance tuning for a multi-platform UNIX environment.

You will patch, install, and configure systems, monitor logs and production environments, and coordinate with ISSOs/ISSMs. A Top Secret clearance is required to start.

Qualifications

• Active Top Secret clearance required (in scope) prior to start.
• Bachelor's degree with 8+ years of experience, or Master's with 6+ years.
• Current DOD 8570 IAT II certification prior to start.
• Strong communication skills both oral and written.
• Demonstrated Linux expertise managing bare metal and virtualized systems.
• Experience patching, managing, and responding to DoW STIGs including POAM remediation.

Responsibilities

• Lead the local System Administration team as Deputy.
• Administer RedHat Linux, tune performance, security, and software.
• Perform installations, upgrades, interfaces, and configuration.
• Monitor systems to meet SLA and policy requirements.
• Perform acceptance testing of modules and subsystems.
• Monitor logs and production environment for mission-critical systems.
• Set priorities and organize work to meet deadlines.
• Ensure compliance with established standards and configuration guidelines.

Skills

Linux systems administration

RedHat Linux

Ansible

Top Secret clearance

Communication

Scripting (bash/python)

VMware

STIG remediation

PoAM remediation

Education

Bachelor's degree

Master's degree

Tools

RedHat Satellite

Kubernetes

VMware

Job description

If you're interested in being a part of an extraordinary mission, working with our customer who runs the DoW’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 DoW 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-Patterson Air Force Base in Dayton, OH and a Top Secret Clearance is required to begin work on the program.

What You'll Do:

• Serve as Deputy Team Lead over the local System Administration Functional team.
• Provide for RedHat Linux systems administration, performance tuning, client security administration, systems software support, and technology assessments in support of a multi-platform UNIX environment.
• Perform systems enhancement, configuration, maintenance, installation, interfaces, coordination, and software installations and upgrades to UNIX operating systems and layered software packages.
• Monitor and tune systems to achieve optimum level of performance in accordance with established policies, procedures, and service level agreements.
• Perform acceptance testing of modules, subsystems, and total systems.
• Perform software installation and configuration.
• Monitor log files, performance issues, and the production environment for mission critical systems
• Demonstrate ability to set priorities and organize work to meet deadlines
• Ensure compliance with established standards, policies, and configuration guidelines

Required Qualifications:

• Must hold an active in scope TOP SECRET clearance or have the ability to obtain Interim TOP SECRET eligibility prior to start. (US Citizenship required)
• Must hold a bachelor’s degree and at least 8 years of equivalent experience, or a master’s degree and 6 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
• Demonstrated Linux expertise managing bare metal and virtualized systems
• Hands on experience patching, managing, and responding to DoW STIGs including POAM remediations
• Experience supporting and working with ISSO’s and ISSM’s
• Proficient in Ansible or equivalent configuration management experience

Preferred Qualifications:

• Proficiency in Linux storage subsystems
• Experience managing RedHat Satellite systems
• 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 Windows Server and workstation experience

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.

Pay Range: Pay Range $92,300.00 - $166,850.00 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.

Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $17.2 billion for the fiscal year ended January 2, 2026. For more information, visit www.Leidos.com.

Pay and Benefits

Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available here.

Securing Your Data

Leidos will never ask you to provide payment-related information at any part of the employment application process. And Leidos will communicate with you only through emails that are sent from a Leidos.com email address. If you receive an email purporting to be from Leidos that asks for payment-related information or any other personal information, please report the email to [e-mail].

Commitment and Diversity

All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.