Linux Software Support Specialist

As a Linux Software Support Analyst, you will be responsible for the full lifecycle management of a defined portfolio of scientific and engineering software. Your primary focus will be ensuring the stability, performance, and availability of this software for users within a large-scale High-Performance Computing (HPC) environment. This position directly supports the research and development activities of the DoD High Performance Computing Modernization Program (HPCMP). The HPCMP provides large-scale systems and environments to the DoD RDT&E community which supports the warfighter. About the Team: The Analyst is part of a larger team of system administrators and support specialists responsible for operating and maintaining the HPC infrastructure. The team environment values methodical problem-solving, adherence to established procedures, and a strong commitment to user support. This position is located at the customer site in Dayton, OH with potential of hybrid work environement. It requires U.S. citizenship and an active Secret clearance. DAILY RESPONSIBILITIES: The duties for this position include but are not limited to: Software Management: Install, configure, and maintain complex software packages on multiple Linux-based systems. User Support: Provide direct technical support by responding to and resolving user-submitted ServiceNow tickets for the assigned application portfolio. Troubleshooting: Diagnose and resolve complex application failures, including OS-level issues such as library dependencies and driver conflicts. Validation & Testing: Test and validate application functionality through system changes like maintenance, OS upgrades, and new system deployments. Maintenance: Deploy software patches and updates to resolve bugs and address security vulnerabilities. Compliance: Ensure all software management tasks adhere to established Standard Operating Procedures (SOPs), including formal Request for Change (RFC) processes. Collaboration: Collaborate with internal technical teams and external software vendors as necessary to resolve complex application-related issues. QUALIFICATIONS: Clearance & Certification Requirements: Active SECRET clearance (US Citizenship required). Active 8570.01M/IAT-II certification. Required Experience: A bachelor’s degree and 1+ years of related experience, OR an equivalent combination of education and experience. Demonstrated experience installing and managing software in a Linux/UNIX command-line environment. Experience with shell scripting in a Linux environment. Experience troubleshooting software installation and runtime issues (e.g., library dependencies, environment variables). Experience providing user support via a ticket-based system (e.g., ServiceNow). Highly Desirable & Preferred Experience: Experience compiling applications from source code (make, CMake), particularly for GPU-enabled codes using platforms like CUDA or KOKKOS. Familiarity with common HPC technologies, including schedulers (PBS, SLURM), interconnects (InfiniBand), and architectures (Cray EX, Linux clusters). Experience with software package managers (Spack) and version control systems (GitLab). Experience supporting scientific applications such as Tecplot, FieldView, Pointwise, or Gitlab Runner. Abilities Required: Strong, methodical problem-solving skills for diagnosing application-level issues. Excellent detail-orientation with the ability to follow complex procedural and administrative protocols. Ability to clearly convey technical information to users of all skill levels. Ability to work effectively as part of a larger technical team within defined role boundaries. Ability to work a designated schedule while maintaining attendance and punctuality. Demonstrated ability to rapidly learn the technical specifics of new and existing software packages. 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: June 1, 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 $57,850.00 - $104,575.00 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 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 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 View email address on click.appcast.io. 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.