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Senior Systems Administrator - LinuxLeidos • Fort Belvoir, Virginia, United States
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Senior Systems Administrator - Linux

Leidos
  • US
    Fort Belvoir, Virginia, United States
  • US
    Fort Belvoir, Virginia, United States
Jetzt Bewerben

Über

Description
Leidos is seeking a Linux Administrator to support the DTRA I3TS Infrastructure Services team to maintain and optimize the Linux production environment. The candidate will be responsible for sustaining Linux servers as well as the conceptualization, design, development and implementation of new Linux capabilities. The candidate is expected work well as a part of the DTRA Systems Administration team using ITIL best practices as well as work independently on assigned tasks. Candidate is expected to support the entire service lifecycle from design through development to production, building and deploying Linux based systems in a virtual environment. Candidate should be familiar with system automation technologies, basic database administration and tuning. Candidates must demonstrate a high degree of problem-solving ability in a complex environment and be able to communicate effectively, both to the customer and to team members. Primary Responsibilities:
Provision servers and environments. Manage user access. Full lifecycle management of Linux servers, including installation, configuration and patching in production and test environments. Automation knowledge scripting in Unix shell and Ansible playbooks. Perform security patching, upgrades, and hardening to meet compliance standards and remediate critical vulnerabilities. Monitor system performance and respond to alerts. Establish and maintain NTP services in the production environment. Maintain satellite servers for the agency, software releases and patches. Experience with the following emerging technologies or equivalent technology:
Kubernetes, Open Shift, Containers, GitHub, Ansible Tower Ensure compliance with security standards and practices aligned with DoD STIGs. Experience with web servers and use of certificates Open Source: Apache Hadoop, Zookeeper, Puppet App Servers: JBoss, Tomcat, Jetty, NGINX, HT
Be able to work in a fast-paced environment and must be able to work independently. Work on multiple projects, leading projects that fall within the Area of responsibility. Communicate with internal team members across multiple areas and client team members. Provide support on a M-F business hours schedule, also responsible for on-call, extended hour, and weekend support as required by mission or emergency situations. Create, maintain, and implement detailed documentation and maintain standard operating procedures.
Basic Qualifications:
BS with 6-8 years, or MS degree with 4-6 years of experience in IT operations working with Linux servers and Virtualization. Must hold a Top Secret/SCI Clearance. Hands-on experience administering Red Hat Enterprise Linux environments. Direct experience supporting systems with Red Hat Satellite. Understanding of virtualized infrastructure, server backup and restoral procedures, application of STIGs and cyber hardening approaches. Basic experience with log file analysis Strong troubleshooting and problem-solving skills.
Preferred Qualifications:
Red Hat certifications (RHCSA or RHCE). Experience implementing and maintaining DISA STIG compliance using Red Hat Satellite and Ansible. Experience integrating Linux systems with Active Directory or LDAP. Familiarity with virtualization platforms (VMware, KVM). Scripting experience (Bash or Python) to support automation initiatives Experience supporting classified networks or cross-domain environments
Certifications:
DoD 8570 IAT Level II or III certification (e.g., Security+ CE, CASP+, CISSP). Red Hat Certification - Red Hat Certified System Administrator (RHCSA) (Preferred)
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 8, 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 . 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 . 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 . If you believe you are the victim of a scam, contact your local law enforcement and report the incident to the . 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.
  • Fort Belvoir, Virginia, United States

Sprachkenntnisse

  • English
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