Karthik Kulkarni Email and Phone Number

• Successfully designed, deployed, and executed a firewall swap activity, replacing over 104 81E FortiGate firewalls with 81F series.• Monitored and collected data with FireMon tool to eliminate 18000 unused rules, remove high-risk ports from 15000 rules, and optimize any any firewall rules to allow only required services and destinations.• Successfully upgraded over 104 FortiGate firewalls from version 7.0.11 to 7.0.14 as recommended by the vendor, thereby eliminating vulnerabilities and bugs listed by the vendor.• Handled multiple website troubleshooting calls, addressing issues such as fixing the Forcepoint Proxy issue, performing Proxy SSL inspection, SSL Bypass, Traffic Rerouting, Forcepoint proxy CA certificate management, SSL handshake verification, and ensuring group policies are pushed to user machines for compliance security.• Set Radius server authentication scheme to MschapV2 for all Firewalls, validated and granted access to 330+ servers including Domain controllers with multiple ports.• Conducted FortiAuthenticator access validation and troubleshooting, implemented MFA setup on Firewalls with Forti token console access.• Using Panorama for centralized management of multiple Palo Alto firewalls, including policy deployment and logging.• Utilizing App-ID to identify and control applications traversing the network, enabling fine-grained control over application usage.• Creating and managing security policies to control traffic flow based on applications, users, and content.• Joined bridge calls and handled P1 and P2 incidents to resolve firewall issues.

* Provide intrusion/incident monitoring and detection utilizing customer provided data sources, audit and monitoring tools at both the government and enterprise level. Work closely with Technology Analysts and Architects to service customers.* Analyze, document and report on potential security incidents identified in customer environments* Work with partners to maintain an understanding of security threats, vulnerabilities, and exploits that could impact systems, networks, and assets* Act as a coordinator for security events that require urgent response, containment and remediation* Provide analysis on various security enforcement technologies including, but not limited to SIEM, anti-virus, content filtering/reporting, malware prevention, firewalls, intrusion detection systems, web application firewalls, messaging security platforms, vulnerability scanners etc.* Perform knowledge transfers, document and train clients regarding mitigation of identified threats* Provide ongoing recommendations to other MSS peers and customers on tuning and best practices* Actively research current threats and attack vectors being exploited in the wild* Actively work with associate analysts and perform investigations on escalationools Knowledge:• EDR : (Crowdstrike, MDE, Tanium, Defender)• SIEM : (LogRhythm, Splunk, Elastic)• SOAR : (Swimlane, Phantom, Xsoar)• Email security : (Proofpoint, Ironport)• Threat Intelligence : (Digital Shadows, Insights)• Ticketing tool : (Service Now, Jira, Hive)

Complete enterprise support

L1 , L2 support for Vodafone enterprise. Maintaining 24/7 network connectivity. Network changes, Up-gradation, Configurations, Implementation, Cisco TAC, Documenting network changes, topology, VLAN, Working on Remedy ticketing system to address customers Network related issues.IP sec, Configuring Firewall.

Monitoring network devices using NMS tools (OP manager, Cacti, Smoke ping, Nagios)Providing WiFi access using meraki and ACS.VLAN & Dot1X configurations for ports.Providing SSL VPN using vasco servers & VPN using ACS.Raising TAC/RMA cases with cisco/juniper and troubleshooting the cisco/juniper device.Raising ticket with ISP’s for the issues like link flap, latency etc and following up till RFO.Updating Bandwidth report, ISP tracker sheets, port documentation, VLAN details.Troubleshooting of cisco devices (Switch, router, Telepresence, ACS)Maintenance, Configuration, Hardware Support on Cisco 7600,9K series RouterTool worked: WHATS UP GOLD, syslog viewerMajor responsibility is to attend up time calls and solve the issues at the Earliest to meet the customer SLA.Being part of Tele Presence Project, which requires installation of Cisco Tele Presence 3000.Basic Network maintenance activities like IOS upgrade, Module upgrade, Power on self test, mounting of equipments, password breaking etc. Solving hardware related issues like Memory Up gradation, Card Replacement.Working knowledge on OSPF, EIGRP, Creating VLANs and basic Configuration to give remote telnet. Being part of Data Project, which requires configuration of Network Infrastructure devices like Routers, Switches. Migration from existing technologies to new technologies to meet customer’s requirement.Configuration Cisco1800,2800,2950,7613,7604,7603,ASR903,ASR9010 Series Switches and Routers.