Eric Liou Email & Phone Number

Chicago, Il, Us

Chicago, Il, Us

Seattle, Wa, Us

Chicago, Illinois, Us

-Member of cloud network foundational team responsible for design, standardization, development, and support of Transunion AWS presence and all connectivity build with on-prem.-Helped design, implement, and operationalize of the Equinix COLOs in US-East and US-West regions and connectivity with corresponding Direct Connect circuits and Direct Connect Gateway.-Led design, implement, and operationalize COLO management networks and bi-directional connectivity with on-prem and cloud.-Helped define, design, and implementation of network connectivity for data plane and control plane flows within AWS cloud with ingress/egress VPC, transit VPC, Transit Gateways, and Gateway Load-balancers.-Migrated Transunion pipes to traverse Direct Connect Gateways through the COLOs via the Transit VIFs to VPC resources across all environments and regions.-Helped define Security Group flows for resource instances in AWS cloud.-Network infrastructure design, implementation and support for application delivery using Agile/Scrum/Kanban methodology with focus on solution architecture, DNS strategy, switching, routing, firewall allowances, storage and replication solutions, and ADC with F5 GTM/LTM.-Network Automation focused on DNS-oriented solutions using Ansible/AWX.-Core data center data forwarding fabric implementation, and support for Cisco Fabricpath.-Core SDDC implementation and integration with application delivery using Cisco ACI.-Remote data center, offices, and customer support via MPLS and RA/S2S VPN solutions.-Managed and utilized Infoblox DDI for IPAM/DNS solutions for all infrastructure and application resources.-Managed and supported Transunion network using Splunk, Statseeker, NetMRI, Viavi Gigaflow, Truesight, Entuity, Tufin.-Managed and supported DDOS Attack Protection solution with Netscout Arborcloud.-Knowledgeable in Nexus 5K/6K/7K/9K (NXOS and ACI), Catalyst 5K/6K/9K, ISR 4K and ASR routers, ASA/FTD/FMC/Palo Alto Firewalls, F5 Viprion/i2K/i4K/i5K.

-Data center core network design, implementation, and support.-Management of intra and inter network connectivity between data centers and remote sites across MPLS cloud and S2S VPN both domestically and internationally.-Documentation for network diagrams for data centers and remote offices.-Cisco Nexus 3k/7k/9k data center infrastructure fabric design, implementation, support, and documentation.-Catalyst 6500/9300 remote office infrastructure design, deployment, support, and documentation.-Talari/Riverbed SD-WAN infrastructure decommission and migration to MPLS cloud.-Managed, supported, implemented Cisco ASA 5500-X VPN tunnels with remote offices and customers.-Implemented Cisco ASA 5500-X W/ FirePOWER for traffic classification, control, threat analysis.-Design and support for NEU VPN environment (L2L IPSec/L2TP, RA, Anyconnect).-Deep troubleshooting with packet analysis through Wireshark/TCPdump for application traffic.-Network device vulnerability scan with Nessus for asset discovery, end device vulnerability, credential patch auditing.-Solarwinds, Netflow, SNMP environment deployment and maintenance for bandwidth optimization, reduction in peak WAN traffic, pinpointing congestion points, detection of authorized WAN/LAN traffic, and proper QoS placement and parameters.-Global Backbone Project combining and interconnecting NE Europe, Asian, and NA MPLS clouds.-Data center network deployment project for IBM Pureflex, Rubrik, Spectrum Protect, vESX, Domino.-Infoblox DDI solution management and support.-Management and support of Cisco WLC infrastructure and AP across remote offices and warehouses.-Management of ACS 5.5 for device and user AAA.

Chicago, Il, Us

-Provide a single point of interface to internal and external clients on issues pertaining to MPLS, Internet, VoIP, and other Managed Services.-NNI/ENNI build and support with Tier 1 and Tier 2 backbone telecom (ATT, Level 3, Verizon, Megapath, Centurylink, etc).-Activation and support for managed telecom services such as MPLS, VPN, P2P, VoiP, L2/L3 networks.-Troubleshoot and resolve Cisco based MPLS networks with BGP, OSPF, and Multicast protocols.-Activation, configuration and support for VoiP environment (SIP, MGCP, Skinny, H.323).-Firewall configuration, security analysis, pen threat mitigation and security best practices (Cisco ASA, Palo Alto HA500, Juniper, Barracuda, Fortinet Fortigate).-Packet analysis with Wireshark, TCPdump for traffic disruption isolation.-Event and incident management using ITIL best practices.-Solarwinds, SevOne, Cacti monitoring for network performance optimization.

-Implementation, support, and management of Cisco-centric core network infrastructure with PIX firewalls and Catalyst 6500 series switches.-Network performance monitoring via Solarwinds.-Device and network infrastructure management via Cisco Prime.-Support of user identity profiles through Active Directory and Cisco ACS.-Installing and configuring office systems such PCs, laptops, tablets.-Management of DDI solution and allocation.-Create technical SOP documentation for network infrastructure system and tools.

Bachelor Of Science - Bs, Computer Science

Bachelor Of Engineering - Be, Computer Engineering, Bioinformatics