Network Engineer

Position: Network Engineer Location: Colorado Springs, CO Make an Impact with Leidos Leidos delivers innovative, mission‑driven solutions through the dedication of diverse, talented teams. Guided by our Mission, Vision, and Values, we empower our people, support our communities, and operate with integrity. Everything we do is rooted in doing what’s right—for our customers, our employees, and the world around us. Thrive in a Mission‑Critical Environment The Leidos Defense Sector offers a broad portfolio of systems, solutions, and services across land, sea, air, space, and cyberspace. We support critical defense missions with capabilities in enterprise and mission IT, large-scale intelligence systems, command and control, geospatial and data analytics, cybersecurity, logistics, training, and intelligence operations. Our teams tackle the world’s toughest security challenges for customers with “can’t fail” missions. We are seeking a Network Engineer to support our Missile Warning / Missile Track Enhancement (MW/MT) program. This role plays a key part in protecting the U.S. through missile defense initiatives and includes model‑based systems engineering, network design, implementation, testing, and deployment to operational locations. Primary Responsibilities Design, develop, and implement network architectures aligned with system and mission requirements. Create and maintain network diagrams, technical documentation, and standard operating procedures. Develop, deploy, and sustain network infrastructure supporting missile defense systems. Conduct troubleshooting efforts and root‑cause analysis for complex network issues. Communicate proposed network solutions to cross‑functional engineering teams in a fast‑paced, highly technical environment. Execute change control processes, document configuration changes, and maintain configuration backups. Support network security activities, including firewall rule reviews and traffic log analysis. Perform configuration, performance analysis, and troubleshooting of network devices. Develop software‑based solutions using established industry standards. Collaborate with third‑party contractors and stakeholders to establish and maintain network connections. Conduct network planning and evaluate emerging technologies for potential integration. Basic Qualifications Bachelor’s degree in Computer Science, Information Technology, or related discipline with 4+ years of relevant experience (additional experience, training, or certifications may substitute for degree). U.S. citizenship; Currently possessing an active DoD Secret security clearance. Hold a current DoD 8140 IAT level II certification (e.g. Security+) Experience designing high‑performance, high‑reliability network infrastructures. Experience with network design technical documentation including: Network diagrams, IP Addressing, Data Flows, Security, Network Inventory, Capacity planning, etc. Strong understanding of networking protocols and concepts including TCP/IP, VLANs, and VPNs. Experience with networking tools for containerized environments. Ability to work independently and collaboratively within engineering teams. Ability to convey technical ideas in a clear, logical fashion. Ability to manage multiple tasks and projects simultaneously. Familiarity with network design tools and diagramming practices. Preferred Qualifications Master’s degree in a related field. Proven abilities with network automation/orchestration tools such as Ansible. Experience with Cisco devices and ASA software. Cisco CCNP or other advanced networking certifications. Experience with CAMEO or other model‑based systems engineering tools. AMSOPP1 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: May 29, 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 $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. 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.