Senior Linux Systems Administrator

Description

Leidos has a new and exciting opportunity for a Senior Linux Systems Administrator in our Intelligence Sector's, Cyber & Analytics Business Area (CABA). Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management. At Leidos, we offer competitive benefits, including Paid Time Off, 11 paid Holidays, 401K with a 6% company match and immediate vesting, Flexible Schedules, Discounted Stock Purchase Plans, Technical Upskilling, Education and Training Support, Parental Paid Leave, and much more. Join us and make a difference in National Security!

This position is eligible for a 10k Sign on Bonus

Job Summary:

Leidos is seeking a highly experienced Linux-focused technical professional to support systems across cloud and on-prem environments. This role requires deep expertise in Linux administration, along with experience in infrastructure, security compliance, and troubleshooting within containerized and virtualized environments.

Primary Responsibilities

• Administer and maintain Linux-based systems across cloud and containerized environments
• Manage and support storage solutions and virtualization technologies
• Configure and troubleshoot IP networking and firewall components
• Apply and support PKI/TLS/cryptographic solutions, including adherence to crypto policies
• Perform application support and advanced system troubleshooting within Linux environments
• Support SSP compliance activities and STE/STN requirements on Linux systems
• Contribute to system automation efforts using available tools (as applicable)

Basic Qualifications

• Bachelor's degree in a relevant field with 10+ years of experience, OR no degree with 15+ years of related professional experience
• IAT Level II certification (e.g., Security+ CE, SSCP)
• Strong proficiency in Linux system administration (required)
• Experience with IP networking and firewall technologies
• Solid understanding of PKI/TLS/cryptography and associated policies
• Clearance Required: Must have an active TS/SCI with Polygraph

This position is eligible for a 10k Sign on Bonus

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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:

April 15, 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 $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.

About Leidos

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 $16.7 billion for the fiscal year ended January 3, 2025. 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 at www.leidos.com/careers/pay-benefits.

Securing Your Data

Beware of fake employment opportunities using Leidos' name. Leidos will never ask you to provide payment-related information during any part of the employment application process (i.e., ask you for money), nor will Leidos ever advance money as part of the hiring process (i.e., send you a check or money order before doing any work). Further, Leidos will only communicate with you through emails that are generated by the Leidos.com automated system - never from free commercial services (e.g., Gmail, Yahoo, Hotmail) or via WhatsApp, Telegram, etc. If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at LeidosCareersFraud@leidos.com.

If you believe you are the victim of a scam, contact your local law enforcement and report the incident to the U.S. Federal Trade Commission.

Commitment to Non-Discrimination

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.

Client-provided location(s): Annapolis Junction, MD

Job ID: Leidos-R-00180912

Employment Type: FULL_TIME

Posted: 2026-04-15T19:04:09