Jose Rheman Perez

• Meet Specific Client SLA
• Handling customer issues via email and live chat
• Monitor and analyze internet traffic for security breaches or DDoS Attacks
• Studies and learns protected networks/services, their user behaviors, and traffic patterns.
• Analyzing Attack patterns using Wireshark and TCPDUMP
• Handling WAF Mitigation using Top 10 OWASP Vulnerabilities
• Troubleshoot Network issues such as route optimization
• Coordinates with ISPs, and Vendors if needed
• Monitor Traffic flow and Logs using PRTG, ELK Stack, Site 24x7, Grafana, ThousandEyes

• Designing and implementing new network solutions and/or improving the
efficiency of current networks
• Installing, configuring and supporting network equipment including routers,
switches, NPYUN, DNS and DHCP
• Procuring network equipment and managing subcontractors involved with
network installation
• Configuring NPYUN’s, routing and switches to maximize network efficiency and security
• Maximizing network performance through ongoing monitoring and troubleshooting
• Updating network equipment to the latest firmware releases
• IP Addressing of Public IP Address given by the Local ISP
• Monitor and maintain all levels of network security internally and externally
• Create and maintain comprehensive documentation for all implemented networks

Environment:
Firewall: Sangfor
Routers: NPYUN
Switches: CISCO 2960-S Series, CISCO 2960-X Series

• Hired as a pioneer Network Operations Engineer for the start-up company.
• Managed the day-to-day network monitoring activities of the Network Operation Centre.
• Mainly responsible in providing support related to network infrastructure and client issues involving routing and switching
• Responsible in performing device installation, code upgrades and management of routers and switches within the enterprise
• Responsible in interfacing with NOC for circuit related issues
• Monitoring of network utilization, bandwidth via Cacti, Nagios, Zabbix, MRTG
• Monitoring of DDos Attacks using Zabbix Monitoring
• Conducts first level mitigation for DDOS
• Configured OSPF for backbone network and Redistribution method
• Involved in switching configuration such as VLAN, Trunk/Access, DHCP, Bundle of interfaces Thru EtherChannel
• Involved in router configuration as DHCP Server, Inter-Vlan Routing/Router-on-a-stick, Static Route and Dynamic Route
• IP Addressing of Public IP Address given by the Local ISP and distribute it to clients
• Involved in router configuration such as DHCP Server, InterVlan Routing/ROAS, Static Route, NAT/PAT, Access List.

Environment:
Routers: CISCO CATALYST 4507R+E, CISCO 3900 Series
Switches: CISCO 3850, CISCO 3650, CISCO 2960-X Series
F5 - BIG IP 2000 Series