Role: Network Admin

nLocation: Chennai

nExp:4-12 Years

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- Design, implement, manage, and optimize Cisco and Aruba wired and wireless network infrastructure across, data center, campus, and branch environments.
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- Lead and support Cisco-to-Aruba migration projects , including planning, configuration migration, cutover execution, validation testing, and post-implementation support.
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- Configure, troubleshoot, and maintain Cisco Catalyst, Cisco Nexus, Aruba Switches, Aruba Wireless Controllers, and Access Points (APs) .
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- Configure and administer Cisco ISE and Aruba ClearPass for Network Access Control (NAC), 802.1X Authentication, RADIUS, TACACS+, Guest Access, and Policy-Based Access Management.
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- Diagnose and resolve complex networks, wireless, routing, switching, and security-related issues.
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nDesired Competencies (Technical/Behavioral Competency)

nMust-Have

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- Hands-on expertise in Aruba OS, Aruba ClearPass, Aruba Central, Cisco Catalyst Switches, Cisco Nexus Switches, Cisco Wireless LAN Controllers (WLC), and Cisco Identity Services Engine (ISE) .
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- Strong understanding of advanced networking protocols and technologies including VLAN, STP, VPC, EtherChannel, LACP, VRF, HSRP, OSPF, BGP, and Spine-Leaf Architecture .
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- Hands-on experience with Cisco ISE for Network Access Control (NAC), 802.1X Authentication, TACACS+, RADIUS, Guest Access, Device Profiling, Posture Assessment, and Policy-Based Access Control.
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- Experience supporting Enterprise LAN, WAN, Data Center, Campus Networks, Wireless Infrastructure, and Branch Connectivity .
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- Strong troubleshooting skills across wired, wireless, routing, switching,



firewall, NAC, and network security environments .
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nGood-to-Have

n1. Advanced Network Management

nStrong hands-on experience with advanced networking technologies including VLAN, STP, VPC, EtherChannel, LACP, VRF, HSRP, Aruba VSX (Virtual Switching Extension), and Aruba VSF (Virtual Switching Framework).

n2 Cisco ISE & Aruba ClearPass Integration

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- Hands-on experience with Cisco ISE and Aruba ClearPass for Network Access Control (NAC), identity management, authentication, authorization, and policy enforcement.
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- Experience configuring and managing wireless authentication, guest access, device profiling, 802.1X, RADIUS, TACACS+, and policy-based access control.
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n3.Cisco-to-Aruba Migration Experience

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- Experience in Cisco-to-Aruba switching and wireless migration projects, including migration planning, deployment, implementation,
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nSN

nRole descriptions / Expectations from the Role

n1 Network SRE / Network Support Engineer

nResponsible for implementing, managing, monitoring, and optimizing Cisco and Aruba wired and wireless network infrastructure across data center, campus, and branch

n2 Cisco ISE & Aruba ClearPass Specialist

nResponsible for managing and supporting Cisco ISE and Aruba ClearPass solutions for Network Access Control (NAC), authentication, authorization, and policy enforcement.

n3 Network Deployment Engineer / Network Support Engineer

nWe are seeking an experienced Network Administrator with robust expertise in Cisco and HP Aruba networking technologies, enterprise LAN/WAN infrastructure, wireless networking, and network security.

📌 Network Admin (Tamil Nadu)
🏢 Tata Consultancy Services
📍 Tamil Nadu