Network Engineer II

Description

Leidos is seeking a highly skilled and experienced Network Engineer II 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 selected Network Engineer will be responsible for the design, configuration, and troubleshooting of the NASA enterprise network infrastructure with a focus on Wi‑Fi technologies.

They will leverage an understanding of RF principles, wireless protocols, and Cisco wireless solutions to ensure optimal performance, reliability, and security.

They will also use 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 understand network technologies and security protocols, and have hands‑on experience with the mentioned tools to keep the NASA Zero Trust Architecture efficient, secure, and continuously available.

• Possess an intermediate understanding of various Catalyst‑based wireless architectures, including Flex Connect, 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 across diverse environments; conduct thorough requirements gathering for complex wireless projects and collaborate with stakeholders across multiple network areas (LAN, security, applications)
• Utilize Ekahau software to create predictive models and heatmaps for wireless network performance
• Determine 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 wired and wireless environments
• Respond to network incidents, troubleshoot network issues, and provide timely resolution to minimize downtime and impact on the business
• Manage network configuration, inventory, and performance using Cisco Catalyst Center (DNAC)
• Develop custom Splunk dashboards and alerts for network‑related incidents, performance issues, and security events
• Maintain up‑to‑date documentation of network configurations, processes, troubleshooting procedures, and incident resolutions
• Provide input and guidance and independent decision‑making to Government customers on best practice for operation and maintenance of the network infrastructure; create documents and presentations for future reference material
• Collaborate with NASA customers, technicians, network engineers, and architects to execute network design changes, modification of the NASA network infrastructure, and identify, analyze, and resolve issues that may be escalated to Engineering
• Execute additional duties as assigned

• Bachelor’s degree in Electrical Engineering, Computer Science, Management Information Systems, Cyber Security, or a related field
• 2‑4 years of combined experience in WLAN and LAN wired for large Enterprise networks
• Ability to obtain and maintain a minimum of a Public Trust clearance
• Working knowledge of Wi‑Fi technologies, including 802.11a/b/g/n/ac/ax standards
• 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)
• Working knowledge of Cisco routing & switching, multicast, and QoS
• Experience deploying QoS in wireless environments
• Experience with NAC using dot1x for wired and wireless environments
• Excellent troubleshooting and problem‑solving skills
• Strong communication and interpersonal skills

• Experience with fabric wireless (SD‑Access Wireless)
• Relevant certifications, such as CWNA, CWDP, CWSP, CWNE, CCNP Enterprise (Wireless Design and/or Wireless Implementation specialist), or CCIE Enterprise Wireless
• Working…