Principal Linux Engineer
Description
Leidos has a new and exciting opportunity for a Principal Linux Engineer in our National Security Sector's (NSS) 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 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 deep systems engineering experience and strong Linux administration skills, we want you on our team.
Responsibilities include:
- Derive functional, system, and performance requirements
- Develop systems engineering artifacts (CONOPs, architecture diagrams, etc.)
- Lead backlog grooming and feature scheduling
- Write and review technical documentation
- Serve as team lead and produce status reports
- Participate in Integrated Product Teams to design new capabilities
- Support DoD and Government Certification/Accreditation processes
- Configure and manage UNIX/Linux and Windows operating systems
- Install/load software, troubleshoot issues, and implement system enhancements
- Maintain network integrity and optimize system performance
- Provide IT support for client/server/storage/network devices and mobile platforms
- Manage accounts, access controls, and security procedures
- Support dispatch systems and hardware issues
- Conduct system capacity analysis and planning
Experience:
- 20+ years of relevant experience
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Education:
- Bachelor's degree in Systems Engineering, Computer Science, Information Systems, or related field
Clearance:
- Top Secret/SCI with Polygraph
Technical Skills:
- Proficiency in Linux, Windows, and virtualization
- Experience with Atlassian tools (Jira, Confluence), Agile methodologies, MS Project, and Visio
CSSRC
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:
October 8, 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 $148,850.00 - $269,075.00
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.
Perks and Benefits
Health and Wellness
- Health Insurance
- Health Reimbursement Account
- Dental Insurance
- Vision Insurance
- Life Insurance
- Short-Term Disability
- Long-Term Disability
- FSA
- HSA
- Pet Insurance
- Mental Health Benefits
Parental Benefits
- Birth Parent or Maternity Leave
- Fertility Benefits
- Adoption Assistance Program
- Family Support Resources
Work Flexibility
- Flexible Work Hours
- Remote Work Opportunities
- Hybrid Work Opportunities
Office Life and Perks
- Company Outings
- On-Site Cafeteria
- Holiday Events
Vacation and Time Off
- Paid Vacation
- Paid Holidays
- Personal/Sick Days
- Volunteer Time Off
Financial and Retirement
- 401(K) With Company Matching
- Stock Purchase Program
- Performance Bonus
- Relocation Assistance
- Financial Counseling
- Profit Sharing
Professional Development
- Promote From Within
- Mentor Program
- Access to Online Courses
- Lunch and Learns
- Internship Program
- Leadership Training Program
Diversity and Inclusion
Company Videos
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