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@thirmalaikumar
Network architect and security lead specializing in SD-WAN and cloud networking.
I am a Network Infrastructure Specialist with 12+ years of global experience architecting, securing, and operating complex enterprise networks across data centers, branches, and hybrid cloud platforms (AWS, Azure, OCI). I deliver high-availability designs, SD-WAN rollouts, cloud connectivity, and VoIP collaboration solutions using Cisco, Juniper, Palo Alto, Fortinet, VMware, and Microsoft technologies.
I have led SD-WAN deployments, Zero Trust integrations, migrations to cloud with ALB/WAF, and large-scale network integrations for acquisitions and new offices; I also manage vendor procurement, BOQs/POs, and compliance activities. I mentor and lead teams of network administrators and IT engineers while driving incident/change management, monitoring, and proactive remediation.
I focus on automation and repeatable operations using Python, Ansible, Terraform, and REST APIs, and I hold multiple cloud, security, and networking certifications including CCNP Enterprise, Fortinet, Oracle Cloud, AWS Cloud Practitioner, and VMware credentials.
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Work history, roles, and key accomplishments
Algihaz Holdings
Sep 2024 - Present (1 year 2 months)
Designed and implemented enterprise networks, FortiGate SD-WAN, Zero Trust access, OCI/AWS networking, and high-availability collaboration solutions while leading migrations, vendor procurement, and compliance activities.
ICU Medical India
Oct 2020 - Jun 2024 (3 years 8 months)
Deployed and supported global enterprise networks using Cisco Meraki, Nexus/Catalyst, and Palo Alto firewalls, delivering SD-WAN migrations, VPN solutions, and network automation to ensure SLA compliance and minimize downtime.
NFuture Digital India
Jun 2016 - Feb 2020 (3 years 8 months)
Managed data center and retail network infrastructure across South India, achieving 90%+ uptime through MPLS/IPSec/GRE VPNs, BGP/OSPF/MPLS optimizations, vendor management, and site rollouts.
Intuit Technologies
Nov 2009 - Mar 2016 (6 years 4 months)
Served as SME for data center and network infrastructure, leading incident resolution, SDN/ACI implementations, and migrations to active/passive and cloud data centers.
Degrees, certifications, and relevant coursework
Bachelor of Engineering, Electrical and Electronics
Bachelor of Engineering in Electrical and Electronics from Thangavelu Engineering College affiliated to the University of Madras.
Software and tools used professionally
AWS IAM
Microsoft Azure
Google Cloud Platform
F5
Terraform
AWS Elastic Load Balancing ...
Palo Alto Networks
FortiGate NGFW
Cisco ASA
Aruba
Cisco Firepower
Cisco Identity Services Engine
Cisco Umbrella
Ansible
Cisco Unity Connection
Site24x7
FortiAnalyzer
Azure Firewall
ManageEngine Network Config...
Cisco DNA Center
Juniper
Amazon Web Services (AWS)
CUE
Prisma Cloud by Palo Alto Networks
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