Jul 2017 – Present · 8 yrs 8 mos · Bengaluru, Karnataka, India · On-site

• Sr. Network Consultant — Victor Chasex Private Limited
• July 2017 – Present | Location
• Role Overview:
• Leading the design, implementation, and security enhancement of enterprise network infrastructures using multi-vendor technologies including Cisco ASA/FTD, Palo Alto, Fortigate, Cisco ISE, WSA, Umbrella, and advanced routing protocols.
• Key Responsibilities:
• Designed and deployed secure WAN/LAN architecture with BGP, OSPF, MPLS
• Managed and optimized Cisco ASA & FTD firewalls (standalone, HA, clustering)
• Implemented multi-vendor VPN solutions: IPSec (IKEv1/v2), DMVPN, FlexVPN, SSL, AnyConnect, GlobalProtect
• Built and administered Cisco ISE for 802.1X, MAB, BYOD, posture compliance
• Managed Cisco WSA with advanced proxy, HTTPS decryption, content filtering
• Conducted advanced troubleshooting with packet captures (Wireshark, TCPDump)
• Hardened network devices and security policies across platforms
• Designed redundancy solutions using VRRP/HSRP and HA firewall pairs
• Led incident response, optimization, and root-cause analysis
• Documented end-to-end architectures, security controls, and SOPs
• Achievements:
• Reduced overall network downtime by 25–30% by optimizing routing behavior (BGP, OSPF), refining firewall policies, and eliminating redundant processing on ASA/FTD and Palo Alto firewalls.
• Implemented enterprise-wide Cisco ISE deployment securing 2,000+ endpoints, enabling 802.1X, MAB, BYOD, posture enforcement, and centralized AAA across multi-site environments.
• Delivered a secure VPN framework supporting remote workforce across 10+ branch locations, using IPSec, FlexVPN, DMVPN, AnyConnect, and GlobalProtect to maintain high-availability secure connectivity.
• Led migration to next-gen firewalls (Cisco FTD & Palo Alto) improving threat visibility by 40%+ and reducing security incidents by approximately 35%, leveraging advanced features like App-ID, SSL decryption, threat prevention, and HA clustering.