Sai Mamillapalli
Sr. Network Engineer | Network & Hardware Specialist | Hybrid and Multi Cloud Network Specialist | Network Security | Cybersecurity Graduate | Virtualization & On-site Support
- Role
- Sr Network Security Engineer at Ally
- Location
- Chicago, IL, US
- LinkedIn followers
- 500 followers
Experience
Sr Network Security Engineer
Jan 2024 — Present
Managed and optimized Palo Alto, FortiGate, and Cisco firewalls (including high-availability and IDS/IPS), enhancing threat detection and reducing unauthorized access. Deployed and maintained SD-WAN with Viptela, Cisco ACI, and Nexus/ASR routers to ensure seamless connectivity, segmentation, and performance. Handled advanced configurations across Azure, AWS, and GCP—covering VPNs, Load Balancers, DNS, WAF, Bastion, Private Link, and Transit Gateway—to secure hybrid cloud environments. Used automation tools like Ansible, Netmiko, and Python for deployment, monitoring, and compliance, reducing errors and improving efficiency. Configured and supported network tools like Infoblox, Cisco ISE, Meraki, F5, and Arista, while integrating network observability via Wireshark, CloudWatch, Azure Network Watcher, and GCP Packet Mirroring.
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