Chandra Sekhar Anish Mamidi
Senior Network Security Engineer at AT&T
- Role
- Senior Network Security Engineer at AT&T
- Location
- Jersey City, NJ, US
- LinkedIn followers
- 500 followers
About Chandra Sekhar Anish Mamidi
4+ years of experience in network and security engineering, specializing in network…
Experience
Senior Network Security Engineer
Jun 2024 — Present · Dallas, TX, US
Used Panorama to enhance PAN-OS 7.X and 8.X environments and worked with Palo Alto firewall models, including Pan-pa-5400-DPC-A, PA-5450, and PA-3440 series.• Customized and optimized security policies, including application-based, user-based, and zone-based rules, to align with security and compliance standards.• Integrated Palo Alto’s WildFire cloud-based threat analysis service to detect and mitigate unknown and zero-day threats through sandboxing.• Managed multiple security contexts (virtual systems) on PA-7050 to segment network resources and enforce unique security policies for different departments or tenants.• Deployed Akamai’s Managed Network Cloud Firewall to provide network attack surface management, optimizing firewall protections and adapting to evolving threats.• Integrated Akamai’s Secure Internet Access Enterprise as a DNS firewall to provide and additional layer of security.• Implemented APIC management in Cisco ACI for efficient policy control, continuous evaluation, and maintenance of network configurations.• Upgraded network infrastructure by transitioning from a traditional three-tier architecture to an ACI-based Spine-and-Leaf topology using Cisco ACI.• Worked on Netmiko to systematically monitor, analyze, and present network health data for improved performance assessment.• Developed and deployed SD-WAN solutions using Cisco Viptela to enhance network efficiency and reliability across multiple locations.• Managed Viptela vEdge devices, ensuring seamless integration with the existing network infrastructure.• Worked on network segmentation and configured EPGs on Cisco Nexus 7010, 7018, 5548, and 5600 switches to enforce application isolation and security.• Configured VPNs for remote data access using Cisco Firepower 1010, 1120, and 1150 firewalls to support clients and employees.• Deployed and configured Infoblox DNS Firewall to enforce DNS security policies, block malicious domains, and detect malware infections.
Education
Stevens Institute of Technology
Master of Science - MS
2023 — 2024
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