# Sethumadhavan User Sethumadhavan User is a remote worker on Himalayas, Lead Captive Operations at Tata Communications Ltd., based in India. Source: https://himalayas.app/@sethumadhavanuser ```text Network Security Lead with 10+ years of experience managing large-scale NGFW environments across global. Expertise in Checkpoint, Fortigate, Palo Alto ``` | Detail | Value | | --- | --- | | Availability | Looking for a job | | Location | India | | Authorized to work in | India | | Salary expectations | 70k-100k INR | | Job categories | Network Security Engineer | | Skills | Network Security, Next Generation Firewalls (NGFW), FortiGate, Palo Alto, Checkpoint, Firewall Policy Optimization, Fortinet SD WAN, Citrix SD WAN, Zero Trust, IPsec VPN, Global Protect VPN, F5 LTM, Forcepoint Cloud Proxy, CrowdStrike Falcon EDR | | LinkedIn | https://linkedin.com/in/sethumadhavan28 | ## What I'm looking for ```text Looking for C2H work from home Jobs in network security domain. ``` ## About ```text At Tata Communications Ltd., I direct 24x7 security operations and manage critical outages for enterprise infrastructure, helping maintain 99.9% uptime. I also improved firewall efficiency by 10% through policy optimization using Tufin NSPM. At HCL Technologies Ltd., I managed a fleet of 13,000+ NGFW devices for the American Pharmacy client and monitored device health to support 99.9% availability. I also resolved high-priority L2 security incidents within 24x7 SLA timelines. Earlier, at TCS, I upgraded Check Point firewalls and strengthened secure access with Cloudflare VPN. Across my network engineering roles, I migrated 100+ sites to SD-WAN and reduced MTTR by 25% through strategic spare delivery. ``` ## Experience ### Lead Captive Operations (current) Tata Communications Ltd.. Sep 2025 - Present ```text Directing 24x7 security operations and managing critical outages for large-scale enterprise infrastructure ensuring 99.9% uptime. Leading commissioning of new Palo Alto firewalls for GlobalProtect VPN services and managing an 8-member L2 team. ``` Skills: Palo-Alto, Global-Protect-VPN, IPS, Tufin, SLA-Management, Incident-Management, Team-Leadership, SOP-Development, DR-Drills ### Technical Specialist [HCL Technologies Ltd.](https://himalayas.app/companies/hcltech). Jan 2025 - Aug 2025 ```text Managed a distributed fleet of 13,000+ NGFW devices (FortiGate 100D, 120D) and monitored device health globally for 99.9% availability. Executed critical firmware upgrades and managed SSL certificate lifecycles on F5 LTM load balancers. ``` Skills: FortiGate, SD-WAN, F5-LTM, SSL-Certificates, Firmware-upgrades, Incident-Management, SLA-Management ### Senior Security Engineer [TCS](https://himalayas.app/companies/tata-consultancy-services). Jun 2022 - Jan 2025 ```text Upgraded Check Point firewalls from R80.40 to R81.20 and managed License Management and Jumbo Hotfix. Executed DR hardware upgrades and established secure IPsec VPN tunnels, while leading P1 security war rooms. ``` Skills: Checkpoint, Firewall-Upgrades, IPsec-VPN, Zero-Trust, Cloudflare-VPN, Forcepoint-Cloud-Proxy, CrowdStrike-Falcon-Cloud-Security, FortiGate, Fortimanager, FortiAnalyzer, Incident-Response ### Network Engineer [UST Global](https://himalayas.app/companies/ust). Feb 2021 - May 2022 ```text Migrated 100+ sites to SD-WAN architecture and maintained uptime across 4000+ locations. Configured FortiGate security policies, NAT, and VPN tunnels in a 24x7 support model. ``` Skills: SD-WAN, Citrix-SD-WAN, FortiGate, NAT, VPN, QoS, Network-Troubleshooting ### Senior Engineer Karvy Innotech Ltd.. Oct 2019 - Jan 2021 ```text Implemented and managed Cisco ISR 1800, 1900 routers and Catalyst 2960 switches for banking operations. Configured VLAN, BGP, and HSRP while reducing MTTR by 25% through strategic spare delivery. ``` Skills: Cisco-Routers, Cisco-Switches, VLAN, BGP, HSRP, PBR, Network-Troubleshooting ### Client Support Engineer Sequel One Solutions Ltd.. May 2017 - Jun 2018 ```text Coordinated with vendors, ISPs, and stakeholders for mission-critical link restoration. Isolated line faults in copper twisted-pair cabling and rectified congestion-related application slowness for banking branch offices. ``` Skills: Network-Troubleshooting, Circuit-Testing, Vendor-Management, WhatsUp-Gold, Remote-Support ### Resident Engineer TeraVault Datacenter Solutions Ltd.. Jul 2015 - May 2017 ```text Provided onsite resident engineering support for data center operations and core infrastructure. Maintained network security and high availability for the bank’s critical IT assets. ``` Skills: Data-Center-Operations, Network-Security, High-Availability, Onsite-Support ## Education ### Mahatma Gandhi University Bachelor of Science, Computer Science ```text Bachelor of Science in Computer Science. ``` ## Tech stack - Forcepoint - Palo Alto Networks - FortiGate NGFW - Cisco ASA - FortiAnalyzer - Fortinet To contact Sethumadhavan, message them from this profile with a Himalayas employer account: [Hire on Himalayas](https://himalayas.app/hire). ## People also viewed - [Hritik Dutta](https://himalayas.app/@hritikdutta): Network Security Engineer L2, Targus Technologies Pvt. 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