Network Engineer III

Leidos is seeking a highly skilled and experienced Network Engineer to support the Advanced Enterprise Global Information Technology Solutions (AEGIS) program and join a large engineering team responsible for evolving and sustaining the NASA Office of the Chief Information Officer (OCIO) Enterprise Corporate Network.

The selected candidate will provide senior-level technical expertise in the design, configuration, optimization, and troubleshooting of NASA's enterprise network infrastructure, with a primary focus on Wi-Fi technologies. This role requires advanced knowledge of Radio Frequency (RF) principles, wireless protocols, and Cisco wireless solutions to ensure optimal network performance, reliability, and security.

The Network Engineer will leverage enterprise management and security tools, including Cisco Catalyst Center for network management, Cisco Identity Services Engine (ISE) for access control, and Splunk for network monitoring and analysis. The ideal candidate will possess extensive knowledge of network technologies, security protocols, and hands-on experience with these tools to support NASA's Zero Trust Architecture (ZTA) objectives while maintaining a secure, reliable, and highly available network environment.

Work Arrangement:
This position currently offers a hybrid work arrangement; however, candidates must reside within 50 miles or a reasonable commuting distance of a NASA facility to meet customer onsite support requirements.

Ames Research Center:  Mountain View, CAArmstrong Flight Research Center:  Edwards, CAGlenn Research Center:  Cleveland, OHGoddard Space Flight Center:
Greenbelt, MDNASA Headquarters:
Washington, DCJohnson Space Center:
Houston, TXKennedy Space Center:
Merritt Island, FLLangley Research Center:
Hampton, VAMarshall Space Flight Center:
Huntsville, ALStennis Space Center:  Bay St. Louis, MSWallops Flight Facility, Wallops Island, VAWhite Sands Complex:
Las Cruces, NM

PRIMARY RESPONSIBILITIES:

Lead the design, implementation, and optimization of complex Cisco Catalyst-based wireless architectures, including Flex Connect, Bridge Mode, and Fabric-Enabled Wireless (SD-Access Wireless), ensuring scalable, secure solutions aligned with NASA mission requirements.

Lead technical requirements gathering and collaborate with NASA customers, network architects, engineers, cybersecurity, and application teams to design and implement enterprise wireless solutions and network infrastructure enhancements.

Perform advanced wireless RF analysis, predictive modeling, and site surveys using Ekahau to optimize access point placement, coverage, capacity, and performance across diverse environments, including office spaces, conference rooms, and outdoor locations.

Provide technical leadership in the configuration, integration, and optimization of Cisco Identity Services Engine (ISE) to enforce Network Access Control (NAC) policies across wired and wireless environments.

Manage and optimize enterprise network configurations, inventory, and performance using Cisco Catalyst Center (formerly DNA Center/DNAC), and develop Splunk dashboards and alerts to monitor network performance, security events, and operational risks.

Lead advanced troubleshooting, root cause analysis, and resolution of complex network incidents and escalated customer-impacting issues to minimize downtime and ensure network stability.

Serve as a senior technical advisor to NASA Government customers, providing independent assessments, recommendations, and guidance on network operations, maintenance, modernization, and industry best practices.

Collaborate with NASA customers and technical teams to plan and execute complex network infrastructure changes and modifications while maintaining operational continuity.

Develop and maintain comprehensive technical documentation, including network designs, configurations, operational procedures, troubleshooting guides, incident resolutions, and technical presentations.

Perform additional duties as assigned.

BASIC QUALIFICATIONS:

Bachelor's degree in Computer Science, Management Information Systems, Cybersecurity, or a related technical field. Additional years of experience in lieu of degree may be considered.

Minimum of 10 years of combined experience in wireless LAN (WLAN) and wired LAN engineering within large-scale enterprise network environments.

Advanced knowledge of Wi-Fi technologies and IEEE 802.11 standards (a/b/g/n/ac/ax), with extensive experience designing, implementing, and optimizing Cisco wireless…