Job Description
Sr. Tech Network specialist(L3)
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Design, deploy, and optimize LAN, WAN, WLAN, Firewall, VPN,Loadbalancer and firewall systems.
Evaluate new networking technologies and recommend solutions to improve scalability and performance.
Implement network segmentation, routing, traffic shaping, and security controls.
Perform daily network monitoring, analysis, and performance tuning.
Troubleshoot complex network incidents, outages, and performance issues.
Maintain router, switch, firewall, load balancer, and wireless controller configurations.
Strong understanding of DNS, DHCP, NTP, load balancing, and network monitoring.
Routing & Switching: BGP, OSPF, EIGRP, STP, VLANs
Configure, manage, and support F5 BIG‑IP LTM, GTM/DNS, ASM, APM, AFM modules.
Create, modify, and troubleshoot Virtual Servers, Pools, Nodes, Health Monitors, and SSL profiles.
Manage SSL Offloading, certificate installation, key management, and SSL/TLS migration.
Implement advanced traffic management using iRules, iApps, and Policies.
Design end‑to‑end Cisco ACI fabric architectures, including APIC clusters, leaf/spine topology, VRFs, Bridge Domains, EPGs, and contracts
Develop L2/L3 network designs using Cisco Nexus 9000 series switches
Architect multi‑pod, multi‑site, and remote leaf solutions
Deploy and configure Cisco ACI fabric components (APIC, leaf, spine)
Configure policies, tenants, VRF, BD, EPG, contracts, service graphs
Integrate ACI with VMware vCenter, ESXi, hypervisors, L4–L7 devices (firewalls, load balancers), and cloud environments
Perform migrations from legacy Nexus/Classic mode to ACI
6–12 years of hands‑on experience with F5 BIG‑IP platform .
Deep expertise in:
LTM (Local Traffic Manager)
DNS/GTM
ASM (Web Application Firewall)
APM (Access Policy Manager)
AFM (Firewall)
iRules, iApps, TCL scripting
Strong understanding of:
TCP/IP, HTTP/HTTPS, SSL Handshake
Load balancing algorithms
DNS and Global Traffic Management
Network routing, switching, VLANs, NAT, SNAT
If interested please share your cv to janani.k1@tatacommunications.com
