Thamarai Selvam S
Summary
Resourceful Technical Lead with 20+ years of experience in network engineering, cloud security, and automation. Proven expertise in AWS, Azure, and GCP environments, Palo Alto firewalls, Cisco/Juniper devices, and DevOps practices. Skilled in leading teams, streamlining operations, and delivering secure, scalable infrastructure solutions across global enterprises.
Overview
26
26
years of professional experience
1
1
Certification
Work History
Storage & Networking Validation Engineer
Facebook
01.2016
Technical Lead / Technical Program Manager
Tech Mahindra (Client: Expedia Group Inc)
09.2024 - Current
- - Leading a 16-member offshore team supporting Expedia Group Global Network Operations.
- - Deploying firewall rules via Panorama templates across AWS cloud and data centers.
- - Troubleshooting AWS VPC peering, WAN routing, and firewall integrations.
- - Managing SD-WAN circuits and BGP/OSPF routing issues across enterprise networks.
- - Collaborating with vendors and internal teams to ensure high network reliability.
Technical Lead
CLPS Global (Client: Expedia Group Inc)
11.2022 - 09.2024
- - Designed and troubleshot AWS multi-cloud network solutions, ensuring seamless connectivity.
- - Implemented and managed Cisco and Juniper devices for enterprise operations.
- - Oversaw firewall deployments and rule creation for cloud and on-premises environments.
Automation Engineer
Palo Alto Networks (Contract)
03.2021 - 05.2022
- - Conducted performance testing and automation for PAN-OS firewalls in data centers and cloud.
- - Automated throughput measurement scripts using Python for AWS deployments.
- - Validated firewall performance in Azure, GCP, and AWS with Spirent test tools.
Automation Engineer
Nokia (HCL)
09.2020 - 02.2021
- - Developed Python/Selenium automation for Nokia PTF framework GUI testing.
- - Implemented performance and stability testing for Kubernetes-based systems.
Automation Engineer
Dell (via HCL)
09.2017 - 07.2019
- - Automated testing for Dell Force10 switches (BGP, OSPF, LACP APIs) in partnership with Microsoft.
- - Designed and executed platform test automation using Python and Netmiko.
Automation Engineer
Brocade Communications
01.2016 - 01.2017
Senior Technical Lead
Intel
01.2014 - 01.2016
Senior Technical Lead
Juniper Networks
01.2013 - 01.2014
Technical Lead
Cisco (via HCL)
01.2002 - 01.2011
Network Support Engineer
Microsense Pvt Ltd
01.2000 - 01.2002
Education
Bachelor of Engineering - Mechanical Engineering
Madurai Kamaraj University
Skills
- Cloud & Security: AWS, Azure, GCP, Palo Alto Firewalls, Cloud Security, SD-WAN
- Networking: Cisco Nexus, ISE, WLC, Arista Switches, Juniper PTX, BGP, OSPF, MPLS, VLAN, STP
- DevOps & Automation: Ansible, Jenkins, Python, Selenium, OpenShift, OpenStack, Docker, ELK Stack
- Testing & Tools: IXIA, Spirent, Netbox, Infoblox, DNAC, Panorama FW Templates
Certification
- Red Hat Certified Specialist – OpenShift Administration
- Red Hat Certified System Administrator – OpenStack
- Networking: CCNA, JNCIA, CCIE Security (Qual)
Timeline
Technical Lead / Technical Program Manager
Tech Mahindra (Client: Expedia Group Inc)
09.2024 - Current
Technical Lead
CLPS Global (Client: Expedia Group Inc)
11.2022 - 09.2024
Automation Engineer
Palo Alto Networks (Contract)
03.2021 - 05.2022
Automation Engineer
Nokia (HCL)
09.2020 - 02.2021
Automation Engineer
Dell (via HCL)
09.2017 - 07.2019
Storage & Networking Validation Engineer
Facebook
01.2016
Automation Engineer
Brocade Communications
01.2016 - 01.2017
Senior Technical Lead
Intel
01.2014 - 01.2016
Senior Technical Lead
Juniper Networks
01.2013 - 01.2014
Technical Lead
Cisco (via HCL)
01.2002 - 01.2011
Network Support Engineer
Microsense Pvt Ltd
01.2000 - 01.2002
Bachelor of Engineering - Mechanical Engineering
Madurai Kamaraj University