Senior Wireless Network Engineer – Cisco & Wi‑Fi Expert

Leidos; Mississippi; Hybrid; USD 92,000 - 167,000; Full time

Job summary

Leidos is seeking a senior Network Engineer to support the NASA OCIO Enterprise Network, focusing on Wi‑Fi technologies and Cisco wireless infrastructure. You will lead design, optimization, and troubleshooting of enterprise WLAN/WAN, with expertise in RF, SD‑Access, and security architectures.

You will leverage Cisco Catalyst Center for management, ISE for NAC, and Splunk for monitoring, while aligning with NASA ZTA objectives.

Qualifications

• Bachelor's degree in Computer Science, MIS, Cybersecurity or related field.
• Minimum of 10 years of WLAN and wired LAN engineering in large‑scale enterprise networks.
• Advanced knowledge of Wi‑Fi (IEEE 802.11 a/b/g/n/ac/ax) and Cisco wireless infrastructure.
• Experience with RF design, site surveys and performance optimization using Ekahau, iBwave, AirMagnet, or equivalents.
• Understanding of SD‑Access, PoE, QoS and NAC (IEEE 802.1X).
• Strong analytical, troubleshooting, and communication skills.

Responsibilities

• Lead Cisco Catalyst‑based wireless design and optimization (FlexConnect, Bridge Mode, SD‑Access Wireless).
• Gather requirements with NASA teams to design enterprise wireless solutions and improvements.
• Perform RF analysis and site surveys to optimize AP placement and performance.
• Lead configuration of Cisco ISE to enforce NAC across wired/wireless.
• Develop Splunk dashboards and alerts for network performance and security events.
• Lead advanced troubleshooting to minimize downtime and incidents.
• Provide technical guidance to NASA customers and teams.
• Plan and execute complex network infrastructure changes with minimal disruption.
• Produce comprehensive documentation and technical presentations.
• Perform additional duties as assigned.

Skills

Wi-Fi technologies

RF design & site surveys

Network troubleshooting

Communication skills

Public Trust eligibility

Education

Bachelor's degree in CS/IS/C cybersecurity or related

Tools

Cisco Catalyst Center

Cisco ISE

Splunk

Ekahau

Job description

Leidos is seeking a senior Network Engineer to support the NASA OCIO Enterprise Network, focusing on Wi‑Fi technologies and Cisco wireless infrastructure. You will lead design, optimization, and troubleshooting of enterprise WLAN/WAN, with expertise in RF, SD‑Access, and security architectures.

You will leverage Cisco Catalyst Center for management, ISE for NAC, and Splunk for monitoring, while aligning with NASA ZTA objectives.