Cisco ISE Lead & NAC Engineer

Job Summary: Cisco ISE Lead & NAC Engineer
Position Title: Cisco ISE Lead & NAC Engineer / Senior Network Engineer 
Location: Santa Clara, CA (100% Onsite, 5 days/week) 
Interview Process: Mandatory Onsite Interview 
Experience Required: 8+ Years Enterprise Network Engineering | 5+ Years Cisco ISE & NAC 
Core Specialty: Cisco ISE (AAA, 802.1X, MAB, Posture, Profiling), Enterprise Wireless (Catalyst WLCs), Layer 2/3 Routing & Switching 
Advanced Architecture: Cisco DNA Center, SDA Fabric, Zero Trust, Network Automation (Python, Ansible) 

Key Responsibilities:

Network Access Control (NAC) & Security Architecture: Design, deploy, and support enterprise-wide Cisco ISE solutions for AAA, 802.1X, MAB, device profiling, posture assessment, and guest access services. Integrate ISE with Active Directory, PKI/Certificates, MDM, and SIEM tools. 
Enterprise Wireless Engineering: Architect and optimize wireless infrastructure using Cisco Catalyst Wireless LAN Controllers (WLCs), supporting WPA2/WPA3, RF tuning, QoS, high-density environments, and ISE wireless onboarding. 
Core Routing & Switching Operations: Manage enterprise LAN/WAN infrastructure on Cisco Catalyst 9K platforms. Configure and troubleshoot OSPF, BGP, EIGRP, VLANs, STP/RSTP, EtherChannel, HSRP/VRRP, and Multicast. 
Modernization & SDA Integration: Drive transition toward Zero Trust architectures, Cisco DNA Center (DNAC), and Software Defined Access (SDA) fabric deployments. 
Automation & Engineering Leadership: Lead cross-functional network projects, develop automated workflows using Python/Ansible/REST APIs, and provide Tier-3 escalation support and root-cause analysis for network outages.