Summary
Overview
Work History
Education
Skills
Certification
Timeline
Generic

Jaiganesh R

Coimbatore

Summary

Cybersecurity Engineer with solid defensive experience in cloud, network, and application security. Skilled in security testing across infra, cloud, and apps using diverse tools. Strong grasp of risk assessment and mitigation in modern tech environments.

Overview

6
6
years of professional experience
1
1
Certification

Work History

Associate Security Consultant

Tech Mahindra
05.2025 - Current
  • Successful integration of Cloudflare, Akamai and F5 WAF, DDoS, Bot and API security
  • Improvised security posture by 30 % on Palo Alto and FortiGate firewall by security review.

Cloud Security Engineer

WPP Marketing Comm. India Pvt.
07.2023 - 05.2025
  • Migrated 500+ VMs and 30+ applications to Azure using lift-and-shift and re-architecture strategies
    tailored for scalability in Cloud Acceleration program,.
  • Designed and implemented secure Azure network architecture: VNETs, NSGs, UDRs, Firewall
    rules, and optimized DMZ zone segmentation.
  • Built Hub-Spoke topology using VNET peering via VWAN and DMVPN; enabled hybrid connectivity
    with GCP and on-prem via Virtual Network Gateway.
  • Solved multi-cloud IP conflicts using Aviatrix; hardened infrastructure with NSGs, NAT rules, Azure
    Firewall (downgraded from Premium to Standard), and private endpoints.
  • Automated provisioning and policy enforcement via Terraform GitHub and Azure DevOps; normalized
    workloads across subscriptions post-migration.
  • Reduced operational costs and enhanced performance by auditing multi-tenant (10+) environments,
    removing unused public IPs, NSGs, UDRs, VNets, Bastions, and idle VMs.
  • Securely exposed private azure infrastructure to public using CloudflareD reverse tunnels.
  • Automated the process with GitHub actions for Zone creation, enforcing security standard configuration.
  • Strengthened application security using Azure Front Door and Cloudflare WAF; established Zero
    Trust-based reverse proxying for private resources.
  • Administered Cloudflare platform for DNS management, WAF customization, Bot defense, DDoS
    mitigation, CDN, SWG, and traffic redirection rules.
  • Utilized WIZ and SCC for multi cloud CSPM.
  • For critical application and zone utilized PaloAlto firewall.
  • Edge and origin SSL/TLS certificate management.

Network Security Engineer

Tata Communications Limited
01.2021 - 07.2023
  • Performed comprehensive internal and external VAPT across servers, networks, and custom applications using industry-standard tools like Nessus, Burp Suite, Nmap, Nikto, and OpenVAS.
  • Deployed a nationwide web traffic filtering solution to block illegitimate web site access for indian users.
  • Secured lab environments through FortiGate UTM with IPS/IDS, web filtering, and SSL VPN deployment for private access.
  • Hardened in house built applications and commercial applications/appliances against OWASP Top 10, NIST, and STIG benchmarks.
  • Conducted firmware security analysis using Binwalk and Hashcat; manually validated application security through ZAP, Metasploit, and dependency checks.
  • Performed basic performance analysis of web applications via GTmetrix and Lighthouse audits.
  • Mitigated DDoS threats using Arbor tools.
  • Distributed threat advisories to stakeholders based on appliances used on TCL infra.
  • Integrated Wazuh SIEM for real-time monitoring, and continuously tracked exposed infrastructure through Shodan for TCL infra.
  • Troubleshot network issues using packet captures (Wireshark/TCPDump) and HAR files for http, https related issues.

Technical Support Engineer

Getronics Solutions - Chennai
08.2019 - 01.2021
  • Project: IT and OT Network operations at Ford Manufacturing plant.
  • Network connectivity troubleshooting for HMI panel, NGAVS tools, PLC, Dynics and office are network .
  • Ticketing and following up SLA for business continuity & sent an advisory to affected users if any outages as per escalation matrix.
  • Change management for OA, Controls Network and robotic process equipment network.
  • Deployed F5 load balancer for application servers.
  • 10+ Tech refresh and RMA for 14 faulty switches, routers, wireless controllers, 12 APs, and 2 voice gateways.

Education

Master of Science - Cyber Forensics And Information Security

Madras University
12-2024

BCA - Computer Applications

GTN Arts Collecge
05.2019

Skills

  • VAPT (Nessus, Burp Suite, Metasploit)
  • CSPM (WIZ & Google SCC)
  • Cloud network security (Azure & GCP)
  • WAF : F5 LTM/AWAF, Cloudflare WAF & ZT, Azure FD, Cloud Armor
  • Firewall : PaloAlto, Fortigate
  • Configuration Audit : Nipper Titania
  • Kali Linux
  • Azure DevOps and GitHub

Certification

  • GCP ACE, GCP PSE, AZ-900, AZ 700, GitHub Copilot AI
  • AWS, CompTIA N+, S+ Course completed.

Timeline

Associate Security Consultant

Tech Mahindra
05.2025 - Current

Cloud Security Engineer

WPP Marketing Comm. India Pvt.
07.2023 - 05.2025

Network Security Engineer

Tata Communications Limited
01.2021 - 07.2023

Technical Support Engineer

Getronics Solutions - Chennai
08.2019 - 01.2021

BCA - Computer Applications

GTN Arts Collecge

Master of Science - Cyber Forensics And Information Security

Madras University

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