<p>Leidos has a new and exciting opportunity for a Senior Linux Engineer in our Intelligence Sectors 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.</p> <p>Job Summary</p> <p>This is a unique opportunity to support a complex, mission-critical program for the Warfighter, implementing cutting-edge technologies with lasting impact. If you're a proactive self-starter with systems engineering experience and strong Linux administration skills, we want you on our team.</p> <p>Primary Responsibilities</p> <ul> <li>Derive functional, system, and performance requirements; develop systems engineering artifacts (CONOPs, architecture diagrams, etc.) </li><li>Write and review technical documentation; participate in Integrated Product Teams to design new capabilities </li><li>Support DoD and Government Certification/Accreditation processes; manage accounts, access controls, and security procedures </li><li>Configure and manage UNIX/Linux and Windows operating systems; install/load software, troubleshoot issues, and implement system enhancements </li><li>Maintain network integrity, optimize system performance, and conduct system capacity analysis and planning </li><li>Provide IT support for client/server/storage/network devices and mobile platforms; support dispatch systems and hardware issues </li><li>Ensure overall system reliability and operational support across infrastructure and platforms </li></ul> <p>Basic Qualifications</p> <ul> <li>Bachelor's degree in Systems Engineering, Computer Science, Information Systems, or related field and 12 years of related experience. Master's degrees may count toward 2 years of experience and will be considered on a case by case basis. </li><li>Proficiency in Linux, Windows, and virtualization </li><li>Experience with Atlassian tools (Jira, Confluence), Agile methodologies, MS Project, and Visio </li><li>Security Clearance Requirement: Active Top Secret/SCI with Polygraph </li></ul> <p>conmd</p> <p>cssrc</p> <p>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.</p> <p>Original Posting:</p> <p>April 6, 2026</p> <p>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.</p> <p>Pay Range:</p> <p>Pay Range $131,300.00 - $237,350.00</p> <p>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.</p>