Nithish Pauldurai

As a Network Administrator at Tata Consultancy Services, I am responsible for configuring, monitoring, and maintaining enterprise network infrastructure, with a focus on Cisco and Meraki technologies. My role involves supporting Layer 2 and Layer 3 network operations, implementing routing protocols (OSPF, BGP, EIGRP), and managing VLANs, trunking, and inter-VLAN routing.

I actively monitor network performance using tools such as Splunk, Zabbix, Grafana, and CA Spectrum, while also supporting VPN, SSH, and firewall policies on Palo Alto devices. I handle incident response, perform firmware upgrades, and ensure 24/7 SLA adherence for over 60,000 devices. Additionally, I contribute to network automation with basic Python scripting, perform Linux-based troubleshooting, and assist with DOCSIS plant and WiFi RF diagnostics.

My role includes capacity planning, documentation, vendor coordination, and mentoring new team members to ensure network reliability and continuous improvement.

Experienced Network Administrator with 3 years of hands-on expertise in managing secure and scalable IT infrastructures. Proficient in configuring and troubleshooting enterprise networks using Cisco, Meraki, and Palo Alto technologies. Skilled in routing and switching (OSPF, BGP, EIGRP), network monitoring (Splunk, Zabbix, Grafana), and basic Python scripting for automation. Strong understanding of WiFi fundamentals, DOCSIS basics, and Linux-based troubleshooting. Proven ability to support large-scale networks (60,000+ devices), deliver 24/7 operations, and drive continuous performance optimization.

Bachelor of Engineering (B.E.) in Mechanical Engineering
Francis Xavier Engineering College, Tirunelveli – 2022