Summary
Overview
Work History
Education
Skills
Certification
Timeline
Generic
Gunasekar V

Gunasekar V

Chennai

Summary

Dynamic Senior Network Engineer with extensive experience at LTIMINDTREE, excelling in Cisco SD-WAN and network troubleshooting. Proven ability to enhance system performance and resolve complex issues efficiently. Strong leadership and communication skills, coupled with deep expertise in Cisco routing and switching, ensure optimal network operations and customer satisfaction.

Overview

8
8
years of professional experience
1
1
Certification

Work History

Senior Network Engineer

LTIMINDTREE at Cisco
Chennai
09.2024 - Current
  • Experience in Tier-2 support, Cisco ServiceNow tool, SNMP monitoring, network troubleshooting, handling escalations, root cause analysis, and SLAs.
  • Experience in troubleshooting both connectivity issues and hardware problems on Cisco-based networks.
  • Cisco Managed SD-WAN Routers and Switches across multiple branches and data centers.
  • Monitored and troubleshot SD-WAN alerts using Cisco VManage and other tools.
  • Providing end-user and system support for Meraki and WLC products, assisting in network setup, and addressing technical inquiries.
  • F5 Big IP pools, monitors, logs, profiles, and VIPs troubleshoot with health checks.
  • Troubleshoot ISP-related connectivity issues, including routing problems, latency, and packet loss.
  • Assist in power supply issue resolution, coordinating with Customers and internal teams.
  • Provided 24/7 availability and on-call support as required by the projects.

Network Engineer

TATA COMMUNICATIONS TRANSFORMATION SERVICE
2 2022 - 08.2024
  • Assesses complex network problems and devises solutions to fulfill business requirements.
  • Troubleshooting of Cisco routing and switching platforms.
  • Regularly check system logs, CPU usage, memory usage, and network performance to ensure optimal functioning.
  • Manage Cisco ISR/Catalyst switches, including the 1000, 9400, and 1300 series.
  • Maintaining the network by upgrading firmware, patching software, and replacing faulty hardware.
  • Provide Level 2/3 support and troubleshooting to resolve issues.
  • Collaborated with vendors to resolve system-related issues quickly and efficiently.
  • Good knowledge of wireless infrastructure and should be able to troubleshoot wireless issues as required.

NOC Engineer

BHARTI AIRTEL
12.2018 - 01.2021
  • Provided telephone support related to networking and connectivity issues.
  • Good understanding of ITIL and ITSM process and able to perform work with in SLA.
  • Provided remote support via SSH or RDP connections for users located at different sites around world.
  • Strong understanding of TCP/IP, DNS, DHCP, VLANs,and network protocols. Experience with network monitoring tools (e.g., SolarWinds and Wireshark).
  • Maintain accurate and up-to-date documentation of network configurations,changes,and incident reports.
  • Participate in rotating shift schedule to provide 24/7 monitoring coverage.
  • Assist in identifying and resolving network issues, outages and performance problems.
  • On-time Escalation and Reporting of alerts according to incident management process.
  • Support of new technology solutions like automation and SD-WAN.
  • Proactively respond to all tickets being forwarded by different teams and follow SOP on same.

Customer Service Executive

Fullerton India Credit Company Limited
01.2017 - 11.2018
  • Enhanced customer satisfaction by promptly addressing inquiries and resolving issues.
  • Managed high volume of inbound calls while maintaining professional demeanor and ensuring timely resolution of issues.
  • Reduced average call time through efficient problem-solving skills without sacrificing quality of service provided.
  • Escalated critical customer issues to supervisor immediately to avoid lost revenue and canceled policies.
  • Resolved customer billing errors by researching issues in system, asking open-ended questions, and determining root causes of problems.
  • Investigated and resolved customer inquiries and complaints quickly.

Education

B.E - Electronics and communications Engineering

Kingston Engineering College
Vellore

Skills

  • Cisco Routing and Switching (ISR, ASR, Nexus, and Catalyst series)
  • Cisco Meraki & WLC Controller (9800)
  • Putty, Splunk, and DNAC
  • Network troubleshooting
  • Ticketing Tools (Cisco ServiceNow)
  • Cisco SD-WAN (Viptela)
  • Network Monitoring (Cisco EM7, SNMP)
  • F5 (Big-IP)
  • Network Operations
  • Team Leadership

Certification

CCNA & MCSA

Timeline

Senior Network Engineer

LTIMINDTREE at Cisco
09.2024 - Current

NOC Engineer

BHARTI AIRTEL
12.2018 - 01.2021

Customer Service Executive

Fullerton India Credit Company Limited
01.2017 - 11.2018

Network Engineer

TATA COMMUNICATIONS TRANSFORMATION SERVICE
2 2022 - 08.2024

B.E - Electronics and communications Engineering

Kingston Engineering College

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Gunasekar V