Senior Network Engineer

Senior Network EngineerJob Title: Senior Network EngineerDuration: Not specified — confirm with account teamLocation: Santa Clara, CA — local candidates onlyWork Arrangement: Onsite 5 days/weekRate: C2C — pending confirmationWork Authorization: USC and GCInterview Process: Onsite, face-to-face interview mandatory at the Santa Clara office — no remote interviewsKEY RESPONSIBILITIESDesign, deploy, and maintain Cisco ISE solutions for authentication, authorization, and accounting (AAA)Implement and support NAC policies using 802.1X, MAB, posture assessment, profiling, and guest accessIntegrate Cisco ISE with Active Directory, PKI, MDM, SIEM, and other security platformsTroubleshoot complex authentication/authorization issues across wired and wireless networksDesign, implement, and optimize enterprise wireless networks using Cisco Catalyst and Wireless LAN ControllersConfigure and troubleshoot WPA2/WPA3, RF optimization, roaming, QoS, and high-density deploymentsConduct wireless surveys, capacity planning, and performance tuningDesign, implement, and support enterprise LAN/WAN infrastructure, including VLANs, STP/RSTP/MST, EtherChannel, HSRP/VRRP, OSPF, BGP, EIGRP, and multicastLead network infrastructure projects from design through deploymentCreate and maintain network architecture diagrams, operational procedures, and technical documentationParticipate in incident response and root cause analysis for critical network outagesCollaborate with security, systems, cloud, and application teams to support business initiativesREQUIREMENTS / MUST-HAVESBachelor's degree in Computer Science, IT, Engineering, or equivalent experience8+ years of enterprise network engineering experience5+ years of hands-on experience with Cisco ISE and NAC deploymentsStrong expertise in Cisco Catalyst switching and routing platformsExtensive experience with enterprise wireless technologiesDeep understanding of 802.1X, RADIUS, TACACS+, AAA services, DHCP, DNS, TCP/IPExperience integrating ISE with Active Directory and certificate servicesStrong troubleshooting, analytical, and communication skillsPreferred: CCNP Enterprise, CCNP Security, or CCIE certificationPreferred: Cisco DNA Center and Software Defined Access (SDA) experiencePreferred: network automation experience with Python, Ansible, REST APIs, or TerraformPreferred: cloud networking knowledge (Azure, AWS, or GCP); Zero Trust and modern security architecture understandingADDITIONAL CONTEXTDesired skills: Cisco ISE, NAC, Cisco Wireless, Catalyst 9K Series, OSPF/BGP/EIGRP, SDA Fabric, Cisco DNA Center, 802.1X Authentication, Network Security, Python Automation, Enterprise LAN/WAN