Systems Administrator - TS/SCI with Poly with Security Clearance

R-00172841 Description Leidos is seeking an experienced Systems Administrator to join our team in supporting mission-critical IT infrastructure. This role is ideal for a professional with solid systems administration expertise, particularly in pipeline automation and/or VMware environments across Windows and/or Linux platforms. You will work in a collaborative, high-security environment, ensuring the reliability, security, and efficiency of systems that support national security objectives. This position involves hands-on administration, automation of deployment pipelines, virtualization management, and troubleshooting in a dynamic setting. The ideal candidate will bring mid-level experience to optimize system performance, implement automation solutions, and maintain compliance with stringent security protocols. Primary Responsibilities: * Administer and maintain Windows and/or Linux servers, including installation, configuration, patching, and performance tuning.

• Design, implement, and manage pipeline automation for CI/CD processes using tools like Jenkins, Ansible, or similar to streamline deployments and operations.
• Manage VMware environments (e.g., vSphere, ESXi), including virtual machine provisioning, resource allocation, clustering, and disaster recovery.
• Monitor system health, troubleshoot issues, and perform root cause analysis for hardware, software, and network-related problems.
• Ensure compliance with security standards, including vulnerability scanning, remediation, and audit support in a classified environment.
• Collaborate with cross-functional teams (e.g., developers, security engineers) to integrate systems and automate workflows.
• Participate in on-call rotations, system upgrades, and capacity planning to support 24/7 operations.
• Document procedures, configurations, and best practices for knowledge sharing and continuity.
• Stay current with emerging technologies in systems administration, automation, and virtualization. Basic Qualifications: * Bachelor's degree with 4 years of experience or a Masters degree with 2 years of experience. Additional experience may be considered in lieu of a degree.
• US Citizen with an active TS/SCI with Poly security clearance.
• Proven experience in systems administration for Windows and/or Linux environments.
• Hands-on experience with pipeline automation tools (e.g., Jenkins, GitLab CI, Ansible) and/or VMware technologies (e.g., vSphere, vCenter).
• Familiarity with scripting languages such as PowerShell, Bash, or Python for automation tasks.
• Understanding of networking concepts, storage solutions, and cloud integration (e.g., AWS, Azure).
• Strong problem-solving skills, with the ability to handle complex issues in high-stakes environments.
• Excellent communication skills for team collaboration and documentation.
• CompTIA Security certification Preferred Qualifications: * Certifications such as RHCE, MCSE, VCP (VMware Certified Professional).
• Experience in DevOps practices, containerization (e.g., Docker, Kubernetes), or infrastructure as code (e.g., Terraform).
• Knowledge of federal security standards (e.g., NIST, FISMA) and experience in classified environments.
• Exposure to hybrid/multi-cloud setups or advanced virtualization features like NSX.
  
  

Come break things (in a good way). Then build them smarter. We're the tech company everyone calls when things get weird. We don’t wear capes (they’re a safety hazard), but we do solve high-stakes problems with code, caffeine, and a healthy disregard for “how it’s always been done.” Original Posting: December 30, 2025 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 $87,100.00 - $157,450.00 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 . 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. #Featuredjob