Kaleem Mohammed

· Managing ISP's Core Network operations (CISCO 7206 PE).

· Upgrading data network equipment to the latest stable firmware releases.

· Providing remote support to on-site engineers and end users/customers during installation.

· Liaising with project management teams, third-line engineers and service desk engineers on a regular basis.

· Troubleshooting network problems and outages, scheduling upgrades and collaborating with network architects on network optimization.

· Communicating with customers via email and phone for initial requirement capture.

· L2/L3 Engineer for Advanced Technical Solutions (IPVPN, L2VPN, L3VPN, MPLS, VPLS, L2PV3 Integrations, Advanced Routing, Redundancy and Achieving High Availability).

· Managing DTC RIPE account for ASN, IPv4/IPv6 Allocation, Reverse DNS and Servers Delegations.

· Implementing and Managing Redundancy Protocols (HSRP, VRRP & GLBP).

· Inter-VLAN routing, VLAN, VTP, STP, RSTP, MSTP, EtherChannel, Stacking & VSS.

· Routing Protocols BGP, RIP, OSPF & EIGRP.

· Configuring CISCO Wireless AP (WAP321, AP1142).

· Configuring and Managing Radius Server.

· VPN (IPsec, SSL & L2TP) configuration at multi-vendor platform level (Fortinet, SonicWall, MikroTik & WatchGuard).

· VPN (DMVPN, IPsec, SSL & PPTP) configuration for CISCO Routers.

· Configuring and Managing F5 Load balancer (LTM)

· Configuring and Managing Monitoring servers (CACTI, PRTG & Zabbix).

· Coordinates with Vendor TAC and escalation to solve the problem within mentioned SLA.

· Performing complex network changes and implementations.

· Analyzes and resolves issues related to information flow and content.

· Performs Automation, Scheduling, scripting, Reporting and Patching using Naverisk & N-able RMM.

· Monitoring and Analyzing CPU, RAM, Disk I/O performance metrics.

· Administrating Office365, Google Apps for business, migrate services.

· Troubleshooting & Administration of SAN & NAS Storage (HP P2000 & Synology RS2418+).

· Creating and Managing Custom Domains, SSL Certificate, MX & SPF Record.

· Configuring Failover Cluster for HA VM’s.

· Virtualization (Hyper-V, VMware & Virtual-box).

· Providing level 3 support for all operational outages in IP network.

· Receiving customer calls and emails through Customer Contact Center and answering their inquiries and resolving their issues in a timely manner.

· Processing the open tickets queue and updating the ticketing system regularly.

· Designing and implementing new solutions and improve resilience of the current environment.

· Implementing and troubleshooting of complex LAN/WAN infrastructure including routing protocols EIGRP, OSPF, RIPv1, RIPv2, static and Default route.

· Monitoring fault and warning alarms, follow up incidents, generate reports on availability and performance, generate reports on utilization and escalate to corresponding technical team as necessary.

· Implementing security policies using ACL, IPSEC, SSL, VPN & AAA.

· Diagnosing and resolving faults with network infrastructure focusing on Cisco, MPLS, routing, and other ISP-related network technologies.

· Collaborates with IT areas to identify network relationships and functional requirements.

· Dealt with monitoring tools like network packet capture tools like Wire-shark, etc.

· Documentation and change control.

· Cooperation with Sales Team and arranging a technical visit for Customer presentations.

· Preparing Proof of Concept for maintaining customer satisfaction in future.

· Dispatching Technical team for any physical damage to the Network and follow up till the issue resolves.

· Providing training and technical support for users with varying levels of IT knowledge and competence.

· Write in database for incidents & customer complaints.

· Performing regular health check for the network elements.

· Implementing and maintaining backup schedules

· Performing security audit for CISCO devices and setting up disaster recovery.

· Perform troubleshooting for Network Related Issues.

· Documents network problems and resolution for future reference.

· Perform troubleshooting analysis of the Modems and Routers.

· Provide Call Support for the Customers to Fix the Issue.

· Undertaking capacity management and audit of IP addressing and hosted devices within data centers.

· Securing network systems by establishing and enforcing policies, and defining and monitoring access.

· Managing Wireless Connectivity by setting the Channel, SSID and Security.

· Set up detailed syslog logging of hardware events and port security violations to monitor any suspicious activity.

· Maintained Router based Access server using cisco 2511.

· Configuring PVST, RSTP and Port-fast on CISCO switches for Zero downtime.

· Securing LAN network by Applying Switch Port security.

· Configuring NTP server for maintaining updated time on Network devices.

· Installing and maintaining Computer Associates Antivirus/Anti-Spyware Program, Hard-Drive Backup, and Frontier Peace of Mind PC Tune-Up.

· Troubleshoot printers (LaserJet, inkjet and dot matrix printers).