Network Engineer

• Jun 2018 - Present

Senior Network Security Analyst

• Sep 2016 - Jun 2018

- Supervises shift team members.- Communicate expectations, assignments and responsibilities clearly and professionally to fellow analysts and associates. - Caters first level and second level support to all NXG clients (VIP, enterprise and gaming) and partners.- Detects and mitigates L3 and L7 DDOS attacks using inhouse and enterprise mitigation platforms + A10 Networks AX3200 + Arbor Peakflow SP + Arbor Peakflow TMS (Threat Mitigation System) + Nexusguard In-house Mitigation Platform- Monitors both clean traffic and mitigated traffic for all Nexusguard clients- Analyzes and identifies network traffic and malicious attacks by analyzing captured packets (pcap), layer 7 access logs and Nginx logs (elasticsearch data).- In charge of SOC network traffic control, aiming to reduce network traffic congestion especially during big scale attacks.- Conducts traffic baselining for new incoming clients.- Directly coordinates with ISP's and IX's for troubleshooting and maintenances.

NOC Head

• Aug 2014 - Sep 2016

- Manages the Network Operations Center - Supervises Network Operations Group including network maintenance, client circuit monitoring, tier1 and 2 troubleshooting, delegation of projects and responsibilities. In addition to my previous position as a Senior Network Engineer.- Develops processes and procedures and work instructions for NOC, which delivers efficiency in customer and network support, work authorizations, change management (specifically created WI’s for NOC such as circuit termination and new circuit activation, change management)- Effectively manages escalation process and troubleshooting coordination (High Level) to ensure fast issue resolution and client SLA is met.- Development of different projects High Level Design (HLD), Low Level Design (LLD), Network Implementation Plan (NIP), Network Migration Plan (NMP), in coordination with the backbone team.- Manage the IP Engineering, Configuration, Installation, Deployment, IOS Upgrade, Troubleshooting, Operations, Maintenance and Optimization of all Cisco and Juniper Routers and L2/L3 Switches- Member of Operations management committee representing NOC and participates on strategic planning with Directors and VP for Operations- Member of Network Operations planning committee together with Operation’s backbone and security team.- Generated monthly progress report, SLA, Telco rebates, performance analysis then directly presents these to the Director for Network Operations and VP for Operations.- Creates and implements training, progression and improvement plans for the whole Network Operations Group

Senior Network Engineer

• Sep 2011 - Aug 2014

- Monitors backbone and core routers and switches via monitoring tool and MRTG- Manage the IP Engineering, Configuration, Installation, Deployment, IOS Upgrade, Troubleshooting, Operations, Maintenance and Optimization of all Cisco and Juniper Routers and l2/L3 Switches - Leads trouble shooting of client internet access services, Leased line circuits and IPL Circuits. Coordinates with carrier and network service providers for immediate solution to network outages- Supervises network associates on their troubleshooting of client connections- Performs network and route optimization and network traffic analysis- Provides IP Recommendations and Optimization regarding Bandwidth Upgrade, Network Protocol Reconfigurations- Conducts extensive traffic engineering to best utilize upstream and backhaul utilization- Helps backbone analyze latencies and network congestion. Performs troubleshooting of core networks, distribution switches (L2/L3) during network issues (outages/disconnections/unstable connections)- Establishes and manages BGP neighbor with upstreams, IX (HKIX, Equinix peerings, Microsoft, Softlayer, Edgecast etc) and local customer peers (i.e. ADB, Jollibee, S-tech etc)- Conducts network maintenance of the backbone network, integrating/troubleshooting of network backhauls, in-depth isolation of network issues. Monitors IPC network security against malicious traffic (DDOS, DOS, etc.) using Arbor and Cisco Guard- Configure L3 protocols (IP, BGP, OSPF, HSRP), redistribution, summarization, Filtration (using distribute list, route map, prefix list, access list)- Calibrates, maintains, and management of network security equipment, Arbor Networks Peakflow.- Performs mitigation of DDOS on client's' network, routing to GRE tunnel, VIP, Proxy Service and blackholing of targeted IP’sWorked closely with the Director of NOC and the Provisioning team for client network and solution implementation.

Network Engineer

• May 2009 - Sep 2011

-Second (2nd) Level Support (Tier 2) Engineer-Leads trouble shooting of client internet access services, Leased line circuits and IPL Circuits. -Coordinates with carrier and network service providers for immediate solution to network outages-Served as the initial point of contact for dedicated leased line and colocation customers reporting trouble.-Monitors backbone and core routers and switches via monitoring tool and MRTG-Monitors customers connection via MRTG and Intermapper monitoring systems-Monitors DDOS attack on client and performs DDOS detection and mitigation-Performs network and route optimization and network traffic analysis-Performs troubleshooting of backbone interconnections and core routers and switches during network outages.-Provide accurate feedback to clients and updates tickets -Helps backbone analyze latencies and network congestion. Performs troubleshooting of core networks, distribution switches (L2/L3) during network issues (outages/disconnections/unstable connections)-Coordinates with local telcos and clients whenever there are DOWN circuits-Attends to clients to perform testing, troubleshooting and router management, configuration-Monitors IPC network security against malicious traffic (DDOS, DOS,etc.) using Arbor and Cisco Guard-Calibrates, maintains, network security and mitigation equipment Arbor Networks Peakflow and Cisco guard.-Performs mitigation of DDOS on client's' network, routing to GRE tunnel, VIP, Proxy Service

Associate Network Engineer

• Aug 2008 - May 2009

-Performs remote hands services including rebooting of modems, servers and other networking peripherals-Monitors backbone and core routers and switches via monitoring tool and MRTG-Monitors customers connection via MRTG and Intermapper monitoring systems-Monitors DDOS attack on client and performs DDOS detection and mitigation-Performs layer 1 troubleshooting in coordination with local and international service provider.-Performs latency testing to client target ip address by utilizing ping test, trace route test, ping plotter, MTR and route servers-Monitors network security using Cisco Guard and Arbor Networks Peakflow-Performs DDOS mitigation for subscribed clients by routing client’s traffic over GRE tunnel established via BGP with DDOS mitigation partners (Prolexic)-DDOS mitigation coordination with services providers for DDOS mitigation (Prolexic) -Coordinates with local telcos and clients whenever there are DOWN circuits-Attends to clients to perform testing, troubleshooting and router management, configuration