Open to opportunities

Rajesh Rajendran

@rajeshrajendran

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I build and support secure enterprise networks using Palo Alto, Zscaler, Cisco, Fortinet, and F5.

India

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What I'm looking for

I'm looking for a network security role where I can build, secure, troubleshoot, and optimize enterprise network infrastructure while continuing to learn emerging technologies.

At Cognizant, supporting Takeda Pharmaceuticals, I manage secure and reliable global network operations across Palo Alto, Zscaler, Cisco ISE, Cisco ASA, and F5 environments.

I've provided advanced Palo Alto TAC support at Movate, resolving complex firewall, VPN, traffic-flow, and performance issues through log analysis, packet captures, diagnostics, and root cause analysis. I also coordinate with vendors and carriers, apply software and firmware updates, and document operational procedures.

My background combines more than eight years of hands-on network security work with manufacturing-sector experience at Ford India. I bring a practical focus on secure, scalable network solutions, operational efficiency, ITIL processes, and continuous learning.

Experience

Work history, roles, and key accomplishments

Current

Senior Associate

Current

Cognizant

Mar 2025 - Present (1 year 5 months)

Serve as a Senior Network Security Engineer responsible for ensuring secure, reliable, and optimized network operations across global environments. Configure, manage, and troubleshoot Palo Alto firewalls, Zscaler solutions, Cisco ISE, Cisco ASA, and F5 load balancers.