Ganesh Malekar

1) Infoblox DDI Expertise:

• Managing and administering Infoblox DNS, DHCP, and IPAM (DDI) solutions for enterprise environments.
• Troubleshooting DNS resolution failures, DHCP lease issues, and IPAM conflicts to ensure uninterrupted business operations.
• Working on upgrades, patching, and integration of Infoblox with security and automation tools.

2) Aruba Wireless

• Managed Aruba Wireless LAN infrastructure, including Mobility Controllers and Access Points. Performed firmware upgrades, RF optimization, and VLAN segmentation for secure connectivity.
• Administered Aruba ClearPass for certificate-based authentication and access control.
• Created onboarding and guest access policies aligned with compliance standards.
• Troubleshot EAP-TLS failures and integrated ClearPass with AD and RADIUS services.

3) Load Balancers (F5, Citrix)

• Configured and managed F5 and Citrix load balancers for application delivery and traffic optimization.
• Handled version upgrades, SSL certificate updates, and troubleshooting to ensure seamless services.

4) Firewalls (Checkpoint, FortiGate)

• Administered Checkpoint and FortiGate firewalls, implementing security policies and VPN solutions.
• Performed firmware upgrades, policy cleanups, and security enhancements across data centers.

5) Cisco ISE

• Implemented and managed Cisco ISE for network access control, authentication, and endpoint compliance.
• Carried out upgrades and patching activities to maintain system performance and security.

6) Cisco Routing & Switching

• Configured and supported Cisco routers and switches in enterprise WAN/LAN environments.
• Managed IOS upgrades, migrations, and routing protocol optimization (OSPF, BGP, EIGRP).

7) Cisco WLC (Wireless LAN Controller)

• Managed and configured Cisco WLCs for enterprise wireless networks, ensuring secure and seamless connectivity.
• Performed code upgrades, AP onboarding, and troubleshooting for high availability and scalability.

• Infoblox DDI (DNS, DHCP, IPAM): Managed Infoblox grids, configured DNS/DHCP services, performed upgrades, and resolved IP conflicts, DHCP lease failures, and DNS resolution issues to ensure smooth operations.
• Provided LAN/WAN, VPN, and security support across DNB's Data Centers, DR, and international branches.
• Managed Citrix NetScaler Load Balancers (VIP creation, SSL renewal, backend binding, troubleshooting).
• Configured and maintained Cisco Nexus 7K switches, Dell chassis switches, and Cisco WLCs with thousands of APs.
• Administered and upgraded Checkpoint Firewalls, ensuring secure and compliant operations.
• Managed Aruba Wireless LAN infrastructure, including Mobility Controllers and Access Points, ensuring stable and secure connectivity.
• Administered Aruba ClearPass for certificate-based authentication, role-based access control, and endpoint profiling

• Monitored and managed LAN/WAN links using SolarWinds, ensuring high availability and performance.
• Performed IP SLA monitoring, routing changes, device configurations, and troubleshooting for latency, packet loss, and link flaps.
• Coordinated with global/domestic ISPs and vendor teams (Cisco TAC, Dimension Data, Sutherland) for timely issue resolution.
• Executed device upgrades, IOS updates, and configuration changes across routers, switches, and firewalls.
• Administered Cisco Prime Infrastructure 3.0 for device onboarding, auto-VLAN scheduling, and configuration backups.
• Supported production bridge calls during major incidents, ensuring minimal downtime and quick restoration.

• Involved in IT day-to-day operations.
• Configuring and troubleshooting VLAN, Ethernet Channel.
• Analyzing Routers, switches logs, and ensuring prompt communication to the Team for major changes in the network diagram.
• Maintaining Network devices and installing new network devices in case of failure.
• Configuration, Implementation, and troubleshooting the Routers, Switches, Routing protocols (EIGRP, OSPF, BGP), P2P Links, etc.

• Configuration and support of network equipment.
• The main focus and responsibility is to maintain the network uptime of 99.5%
• Monitoring the bandwidth utilization using MRTG & Network Management Engine.
• Configuring and troubleshooting VLANs.
• Testing – end-to-end connectivity.
• Resolving issues related to the CPE device, monitoring the Network by using applications like Flex master, Zone Director.