Jayakumar Subramani

About Jayakumar Subramani

With over 9 years of hands-on experience in network technologies, I bring a solid foundation in network fundamentals and a passion for continual development within a professional IT environment. I am highly skilled in network configuration and troubleshooting, with a proven ability to quickly learn and apply new concepts and techniques. Ready to contribute and further enhance my expertise in a Network Administration role, delivering reliable and efficient solutions to meet organizational needs.

Experience

1. Network Administrator

   Tata Consultancy Services

   Jun 2022 — Present · Bengaluru, IN

   Handling various models, including Palo Alto, FortiGate, Cisco ASA and ensuring proper configuration and monitoring of each type, especially with differing sets of features. Responsibilities in firewall management specifically Firewall Security Policy Management, Traffic Filtering and Security Controls, Centralized Management Using Panorama, Redundancy, High Availability (HA), Site-to-Site and Remote access VPN, and Troubleshooting Submitting and managing CRQs, collaborating with the Change Control team to secure permissions for tasks. Hands-on experience with OSPF and BGP, enabling efficient routing between devices, which ensures optimal data paths across the network. Utilizing SolarWinds for WAN link monitoring, and working with ISP vendors to resolve connectivity issues. Post-incident, conducting root cause analysis to prevent future issues and improve link performance. Proficiency in technologies such as HSRP, VRRP, GLBP, and ACLs. Managing VLANs, VTP, Inter-VLAN routing, and STP ensures reliable network switching and traffic distribution. Experience in switch stacking and NAT configuration, enhancing scalability and flexibility. Familiar with Infoblox’s DHCP and DNS services. Setting up fixed IP addresses, managing DHCP ranges, and configuring DNS records to maintain accurate network name resolution. Familiar with WLC updates and basic wireless troubleshooting, ensuring that wireless network devices function optimally. Managing major incidents, prioritizing and leading efforts to resolve network-related issues within SLA timelines. Working on Root Cause Analysis reports for major incident issues and leading the calls with problem management team for RCA documentation. Developing and maintaining Standard Operating Procedures (SOPs) to ensure consistency and efficiency in network management tasks. Assisting with onboarding and knowledge transfer for new participants, helping them understand network configurations and processes.

Education

• Meenakshi Sundararajan Engineering College

  Bachelor's degree, Electrical, Electronics and Communications Engineering

• Tiruttani Polytechnic College

  Diploma of Education, Electrical, Electronics and Communications Engineering