Tcs hiring Network Voice Admin(Cisco UCM) For Delhi /Chennai

Job description

\\ **Role\\*\\*Network Security Engineer** **Required Technical Skill Set\\*\\*** **Switching, Routing, Palo-Alto Firewall, Wireless, Voice** **Desired Competencies (Technical/Behavioral Competency)** **Must-Have\\*\\*** Good Experience firewall technologies such as PaloAlto, Panorama firewalls and Palo Alto global protect VPN installation, configuration and troubleshooting network connectivity. Basic routing and switching fundamentals such as BGP/OSPF/EIGRP/MPLS, Switching VLANS, STP, VTP. Firewalls, Virtual Private Network (VPN), NAT, HA, APP-ID, User-ID, URL and Content filtering. Wireless LAN Technologies - Deep knowledge of 802.11 standards (a/b/g/n/ac/ax). - Expertise in Wi-Fi design, coverage planning, and capacity management. - Familiarity with RF fundamentals (signal strength, SNR, interference, channel planning). Wireless Infrastructure - Hands-on experience with enterprise-grade WLAN controllers (Cisco WLC, Aruba, Meraki, etc.). - Configuration and management of Access Points (APs), SSIDs, VLANs, and roaming. Hands-on with at least one major UC stack: - Cisco: CUCM, Unity, Expressway, CUBE, VG/ISR, RTMT, CAR. - Microsoft: Teams Phone (Direct Routing/Operator Connect), SBC integration. **Good-to-Have** Azure AD | Azure Virtual Desktop| NSG| Security Groups experience required Open VPN, Cloud VPN, NAT Gateways, Routing Protocols experience required. **Responsibility of / Expectations from the Role** **1** Maintain the clients security and networking devices and upgrade when necessary - Providing end-to-end support for other engineers on Palo Alto equipment/software - Cross train in-house to share knowledge and share workload - Responsible of global protect VPN and troubleshooting - Responsible for vulnerability fix and patching - Live packet capture and troubleshooting report **2** Provide documentation designed and installation rollouts - Responsible for LAN/WAN installation including switches and routers - Provide support to project managers on security/network deployments - Suggest and detail design changes as and when needed - Design, deploy, and maintain Cisco ACI (Application Centric Infrastructure) fabric. - Configure APIC controllers, tenants, VRFs, bridge domains, and endpoint groups (EPGs). - Implement contracts, filters, and policies for secure communication between EPGs. - Integrate ACI with Layer 2/Layer 3 networks, firewalls, and external routing protocols (BGP, OSPF). - Perform firmware upgrades, patches, and ensure compliance with security standards. - Documentation for the customers installations and provide continue service advice **3** Generate Monthly and Quarterly Firewall Audit and Network Capacity Management Reports **4** Timely response on break fix and help in resolving all the incidents that pertain to Network Data and Security **5** Perform Day to Day Operational work pertaining to Network Data and Security (Incidents, Service Requests, Change Requests) **6** Plan and review all the Network Change Requests