Senior Linux System Engineer Jobs in Orlando, FL

At Leidos, we deliver innovative solutions through the dedication of our diverse and talented teams. United by a shared commitment to our customers’ success, we empower our people, support our communities, and operate sustainably. Our Mission, Vision, and Values guide every aspect of our work, ensuring we do the right thing-for our customers, our people, and the world around us.

The Leidos Defense Sector provides advanced systems, solutions, and services across land, sea, air, space, and cyberspace. From enterprise IT and large-scale intelligence systems to cybersecurity, geospatial analytics, logistics, and training, we support some of the nation’s most critical defense missions. Our teams take on challenges where failure is not an option-and succeed.

We are seeking a Senior Network Engineer to support our ABMS DI Network Manager (DINM) program located in Orlando, FL. This role is part of a team supporting the Department of the Air Force’s Air Battle Management System and its associated infrastructure. The Senior Network Engineer will provide hands‑on support for core network infrastructure, including troubleshooting, on‑site assistance, and driving improvement through requirements and engineering expertise.

• Provide Network Engineering support for the design, documentation, implementation, maintenance, and operation of an evolving network architecture.
• Guide and support network deployments, including provisioning and process optimization.
• Serve as the primary manager of the code base associated with deployments.
• Mentor and provide cross‑functional training to team members.
• Manage SD‑WAN architecture, including operational and security updates.
• Lead planning and coordination of network system upgrades at CONUS and OCONUS field sites.
• Coordinate with the C2NSOC DI-Network Manager Team Lead and chief engineer to manage issues and raise as appropriate.
• Deliver briefings and regular status updates to Program leadership on DI‑Network activities.

• Bachelor’s degree in Information Technology, Network Engineering, or related discipline with 12+ years of related experience. Additional experience, training, and/or certifications may substitute degree requirement.
• US Citizen; Currently possessing an active DoD Secret clearance with ability to upgrade to a TS/SCI clearance upon hire.
• Experience mentoring technical staff on IPTs and cross‑functional teams.
• Demonstrated ability to influence development of solutions supporting strategic program goals.
• Knowledge of network engineering, network architecture, and network automation tools (Ansible, scripting, coding).
• Experience configuring, activating, testing, analyzing, and troubleshooting network systems.
• Strong written and verbal communication skills, collaboration abilities, and team‑building experience.

• Master’s degree with 10+ years related experience.
• Prior experience supporting US Air Force or DoD programs.
• SD‑WAN expertise and/or relevant certifications (Juniper or Cisco).
• Experience with Linux systems administration.
• Familiarity with Agile methodologies.
• Experience working/testing within commercial cloud platforms (e.g., AWS) and DevOps tools.
• Experience with cybersecurity methodologies.
• Current and Active TS/SCI clearance.

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.

August 7, 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 $116,350.00 - $210,325.00

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 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 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.

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.