Senior Network Security Engineer (Cisco ISE/NAC)

Solution IT Inc. is looking for Senior Network Engineer (Cisco ISE / NAC) for one of its clients in Santa Clara, CA

Job Title: Senior Network Engineer (Cisco ISE / NAC)

Responsibilities:

Network Access Control & Security

• Design, deploy, and maintain Cisco ISE solutions for authentication, authorization, and accounting (AAA).
• Implement and support NAC policies utilizing 802.1X, MAB, posture assessment, profiling, and guest access services.
• Integrate Cisco ISE with Active Directory, PKI, MDM, SIEM, and other security platforms.
• Troubleshoot complex authentication and authorization issues across wired and wireless networks.
• Develop security policies and access controls to ensure compliance with organizational standards.

Wireless Networking

• Design, implement, and optimize enterprise wireless networks using Cisco Catalyst and Cisco Wireless LAN Controllers.
• Configure and troubleshoot wireless technologies including WPA2/WPA3, RF optimization, roaming, QoS, and high-density deployments.
• Conduct wireless surveys, capacity planning, and performance tuning.
• Support secure wireless onboarding and policy enforcement through Cisco ISE.

Routing & Switching

• Design, implement, and support enterprise LAN/WAN infrastructure.
• Configure and troubleshoot Cisco Catalyst switches and routing platforms.
• Manage Layer 2 and Layer 3 technologies including:

• VLANs
• STP/RSTP/MST
• EtherChannel
• HSRP/VRRP
• OSPF
• BGP
• EIGRP
• Multicast

• Perform network performance analysis, capacity planning, and optimization.

Operations & Engineering

• Lead network infrastructure projects from design through deployment.
• Create and maintain network architecture diagrams, operational procedures, and technical documentation.
• Participate in incident response and root cause analysis for critical network outages.
• Collaborate with security, systems, cloud, and application teams to support business initiatives.
• Evaluate emerging networking and security technologies and recommend improvements.

Required skills:

• Bachelor's degree in Computer Science, Information Technology, Engineering, or equivalent experience.
• 8+ years of enterprise network engineering experience.
• 5+ years of hands-on experience with Cisco ISE and NAC deployments.
• Strong expertise in Cisco Catalyst switching and routing platforms.
• Extensive experience with enterprise wireless technologies.
• Deep understanding of: