Description Leidos is seeking a highly skilled and experienced Network Engineer III to support the Advanced Enterprise Global Information Technology Solutions (AEGIS)program and join a large Engineering team entrusted with evolving and sustaining the NASA OCIO Enterprise Corporate network. The Network Engineer that is selected for this role will be responsible for the design, configuration, and troubleshooting of the NASA enterprise network infrastructure with a focus on Wi-Fi technologies. You will leverage your deep understanding of RF principles, wireless protocols, and Cisco wireless solutions to ensure optimal performance, reliability, and security.Also utilizing tools such as Cisco Catalyst Center for network management, Cisco Identity Services Engine (ISE) for access control, and Splunk for network logging and analysis. The ideal candidate will have a deep understanding of network technologies and security protocols, along with hands-on experience with the aforementioned tools to ensure the NASA Zero Trust Architecture (ZTA) is efficient, secure, and continuously available. This is currently a hybrid role, however, to adhere to customer expectations the selected candidate would need to be within a 50-mile commuting distance to any NASA facility.Key Responsibilities:Possess a deep understanding of various Catalyst-based wireless architectures, including FlexConnect, Bridge Mode, and especially Fabric Enabled Wireless (SD-Access Wireless)Design robust, scalable, and secure wireless network solutions to meet NASA's evolving business needs, spanning diverse environments. Conduct thorough requirements gathering for complex wireless projects, collaborating with stakeholders across multiple network areas (e.g., LAN, security, applications) to ensure alignment.Utilize Ekahau software to create predictive models and heatmaps for wireless network performanceDetermine optimal access point placement and RF coverage for diverse environments, including office spaces, conference rooms, and outdoor areas.Manage and configure Cisco Identity Services Engine (ISE) to enforce network access control policies for both wired and wireless environmentsRespond to network incidents, troubleshoot network issues, and provide timely resolution to minimize downtime and impact on the businessManage network configuration, inventory, and performance using Cisco Catalyst Center aka DNACDevelop custom Splunk dashboards and alerts for network-related incidents, performance issues, and security eventsMaintain up-to-date documentation of network configurations, processes, troubleshooting procedures, and incident resolutionsProvide input and guidance along with independent decision making to Government customer on best practice for the operation and maintenance of the network infrastructure creating documents & presentations for future reference materialWork directly or indirectly with NASA customers, Technicians, Network Engineers and/or Network Architects to execute network design changes or modifications of the NASA network infrastructure, as well as identify, analyze, and resolve issues for customer impacting events that may be escalated to EngineeringAdditional duties as assignedQualifications:Bachelor's degree in Electrical Engineering, Computer Science, Management Information Systems, Cyber Security, or a related field10 - 15 years combined experience between WLAN and LAN wired for large Enterprise networksHas the ability to obtain and keep a minimum of a Public Trust clearanceProfessional-level knowledge of Wi-Fi technologies, including 802.11a/b/g/n/ac/ax standardsExtensive experience with Cisco wireless infrastructure, including access points, wireless LAN controllers, and management tools (Prime Infrastructure, Catalyst Center)Proficiency in performing site surveys and creating/updating Wireless RF designs using Ekahau, iBWave, Airmagnet, or similar software.Solid understanding of underlying LAN technologies, including PoE standards, topologies (3-tier, SD-Access)Solid understanding of Cisco routing & switching, multicast, and QoSExperience deploying QoS in wireless environmentsExperience with NAC using dot1x for wired and wireless environmentsExcellent troubleshooting and problem-solving skillsStrong communication and interpersonal skillsRelevant certifications, such as CWNA, CWDP, CWSP, CWNE, CCNP Enterprise (Wireless Design and/or Wireless Implementation specialist), or CCIE Enterprise WirelessDesired Skills:Experience with fabric wireless aka SD-Access WirelessIn-depth knowledge of Cisco Identity Services Engine (ISE) for access control, network security, and user/device authenticationProficiency with Splunk for network log management, analysis, and creating custom dashboards and reportsAdvanced knowledge of networking protocols (e.g., OSPF, BGP, MPLS, QoS, IPSec)Strong analytical and troubleshooting skills with the ability to diagnose and resolve complex network issues.Excellent written and verbal communication skills to effectively collaborate with team members, management, and external stakeholdersAbility to work collaboratively in a team environment, providing guidance and mentorship to other network engineersFamiliarity with SD-WAN solutions and network automation tools (e.g., Ansible, Terraform)Possess a solid understanding of RF principlesAdditional certifications related to Security and Route/ Switch would be a plusIf 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:April 15, 2026For 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 $116,350.00 - $210,325.00The Leidos pay range for this job level is a general guideline onlyand 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.About LeidosLeidos 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 and BenefitsPay 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. 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Job Title
Network Engineer III