Sarim Ansari
Network Security Engineer
About
Network Security Engineer with 3.7 years of experience in enterprise LAN/WAN and banking network environments. CEH v13 (EC-Council) certified professional with hands-on experience in Palo Alto and Check Point firewall administration, including Panorama-based centralized management, security policy deployment, NAT, ACLs, and IPsec VPNs. Strong expertise in network security, routing protocols, and network hardening practices. Experienced in monitoring DC/DR infrastructure, troubleshooting end-to-end network issues, and supporting secure enterprise networks. Additionally, possess hands-on exposure to AWS cloud networking fundamentals including VPC architecture, subnets, route tables, security groups, and site-to-site VPN connectivity, enabling support for hybrid on-premises and cloud network environments.
Skills & Expertise (5)
Work Experience
NOC Support Engineer
Navkar Supertech Pvt Ltd
Jun-2022 - Dec-2024
Expertise in routing and switching, network protocols, and service provider coordination. Administered and optimized routing protocols including BGP, OSPF, and EIGRP. Configured VLANs, stack switches, MPLS, and managed VTP modes for network segmentation. Installed, configured, and maintained Meraki wireless access points to ensure optimal connectivity. Collaborated with ISPs and service providers to maintain seamless network operations. Configured and managed IPsec VPNs, QoS policies, and tunneling for secure data transmission. Hands-on experience with Palo Alto Networks firewalls, including security policies, NAT, and zone-based architecture. Monitored and analyzed firewall traffic logs, sessions, and threat events for troubleshooting and optimization. Worked on FTTx/Broadband networks with GPON technology (OLT, ONT, ONU, splitters). Basic exposure to AWS networking including VPC, subnets, route tables, security groups, and site-to-site VPN connectivity (lab-based).
Network Security Engineer
Pyramid IT Consulting Private Limited (Bank Of Baroda Data Center)
Dec-2024 - Jan-2026
Provided Global NOC support for enterprise WAN operations across national and international banking locations. Implemented, configured, and maintained routers, switches, ATMs, and CR machines ensuring high availability and secure connectivity. Commissioned WAN links from multiple ISPs, including link testing, redundancy, failover, and loadbalancing validation. Administered Palo Alto and Check Point firewalls, including security policies, NAT, ACLs, zone-based security, and UTM features. Implemented and managed IPsec site-to-site VPNs across branches, Data Center, and Disaster Recovery environments. Performed firewall rule analysis, access control reviews, and policy optimization to meet security and compliance requirements. Monitored firewall logs, VPN tunnels, and network traffic to detect threats, anomalies, and security incidents. Supported incident response activities by blocking malicious IPs, isolating impacted segments, and restoring services. Troubleshot connectivity and security issues across core, distribution, and access network layers. Ensured compliance with internal security standards, audit requirements, and banking IT policies. Ensuring Quarterly firmware upgradation to the latest stable N-1 version as suggested by OEMS for Network Managed devices i.e., Router, Switches, Firewalls Hands-on exposure to AWS networking concepts including VPC, subnets, route tables, security groups, and site-to-site VPN connectivity.
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Profile Overview
Availability Details
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Other
Visa Status
Other
Relocation
Open to Relocation