Networking Skills: -▪ Good understanding of protocols – ARP, TCP, UDP, DNS, DHCP, HTTP, FTP.▪ Good understanding on layer2 security – Port Security, STP, DHCP Snooping.▪ Implementing and troubleshooting Site to Site VPN, AnyConnect VPN, dot1x.▪ Deploying AAA in network and configure RADIUS authentication for NAC in Cisco ISE.▪ Monitor Cisco Firepower IPS for DDoS, SQL Injection, Cross site scripting attacks.▪ Working on different network devices like Cisco ASA (CLI / ASDM), Cisco Firepower, FMC, IPS/IDS.▪ Implementing and troubleshooting of Checkpoint Firewall.▪ Implementing and troubleshooting of Palo Alto Firewall.▪ Configuration and troubleshooting of F5 Load Balancer.▪ Hands-on experience in implementing AnyConnect VPN in Cisco Firepower.▪ Experienced in migration of ASA to FTD firewall in Data Center.▪ Hands-on experience in faulty firewall replacement.▪ Hands-on experience in upgrading data center firewalls.▪ Experienced on configuring SAN certificate in SSL VPN.▪ Experienced in configuring network device from scratch and installing to network rack.▪ Knowledge on tcpdump analyzer tool for troubleshooting network issues.▪ Knowledge in switching protocol -STP, VTP and have knowledge about VLAN.▪ Good knowledge on proxy devices and its function in the network.▪ Basic understanding in Linux.▪ Good knowledge on ITIL process for Change, Incident, Problem management.▪ Experienced in working on Wireshark for network troubleshooting.▪ Security Monitoring tools – Firewall Analyzer, Cisco Stealthwatch, FireMon.▪ Network Monitoring tools – OpManager, Orion (SolarWinds), LiveAction, IPAM, NetMRI.▪ Ticketing tools – ServiceNow, PeopleSoft, SDP, OneTouch.

Cloud Security:• Worked and troubleshooting experience on Zscaler Cloud proxy.• Worked on Network Protocol Analyzers (Wireshark, Fiddler) to resolve user network issues.• Coordinate with Zscaler to resolve uncategorized URL.• Block suspicious URL on Zscaler proxy to protect from attack.• Participate in Webex meeting to resolve cloud Zscaler proxy issues on user.• Knowledge on Network Security (SSL/TLS, VPNs, Firewall)• Work experience on proxy pac file.• Provide phone/email consultation to independently debug complex security/network problems.• Reproduce customer issues to verify problems and provide solutions related to cloud proxy.• Worked on ServiceNow ticketing tool to handle Incidents and Problem Tickets.

Worked on below security devices.Firewalls: Palo Alto, Cisco ASA, CheckpointWeb Proxy: Cisco WSACloud Proxy: Cisco ScansafeCisco ACSProxy PACEndpoint Security: Bit9• I successfully cleared Palo Alto Firewall certification.• Worked and configured PaloAlto Firewall models PA-200, PA500, PA-3020, PA-3050, PA-5050.• Troubleshooting and configuration of ACL and NAT in firewall.• Expert knowledge in App ID related issue in Palo Alto firewall.• Worked on Checkpoint Gaia Firewalls to implement rules, NAT• Configuration and Troubleshooting of IPSEC VPN.• Configuration of SSL VPN (Anyconnect Client) on multiple occasion for end customer.• Configuration and troubleshot of Application layer firewall, High Availability, ASA Failover.• Configuring AAA (authentication, authorization, accounting) using RADIUS, TACACS+ servers using Cisco ACS.• Troubleshooting Connectivity Problems, monitoring connectivity by using PRTG Tool.• Worked on Explicit proxy deployed network.• LAN/WAN traffic analysis using Packet Sniffer tools Wireshark to understand the Packet Flow and to identify problems and performance issues.• Taking regular backup and upgradation of IOS for all Network devices as and when required.• Timely customer complaint resolution and meet MTTR as per SLA.• To Raise Cases with the Vendors such as Cisco, Palo Alto for complex issues and following up with them for the closure of the cases.• Working with ServiceNow ticketing tool to handle Incidents and Problem Tickets with the provision of resolution adhering to SLA.• Configuration and troubleshooting policies on Endpoint security product Bit9 to prevent servers from malicious activities.• Participate in a 24x7 Support Operation and 24x7 on-call rotation.• Providing the Technical support to the subordinates and sharing the knowledge.