Edwin Ahn Email & Phone Number

Will County

Management responsibility for the operation and maintenance of Will County Sheriff's Office Information Technology including the following, but not limited to,Cisco infrastructure including 4510 and 3850 Virtualized Software Defined Data Center operation - EMC Vmware (vCenter, ESXi, snapshot, VM Template, Migration (vMotion), Horizon vDI, HA, FT, and DRS)Windows 2016 server - Activity Directory, DHCP, DNS, GPO (Group Policy Object), WSUSWhatsUpGold network management for key network systemsAruba wireless IAP 215, 315, 367 and AirwaveBarracuda, Symantec, etc.

Greater Chicago Area

Adjunct faculty teaching TCP/IP, DHCP, DNS, IP subnetting, Variable Length Subnetting Masking, Wireshark, Spanning Tree Protocol, Trunking, Link Aggregation Protocol (ether channel), VLAN, Switching and Routing protocol (RIP, EIGRP and OSPF) at College of Dupageo Teaching Cisco Wireless o Certified Cisco Networking Academy Instructor teaching at COD o Proficient in Cisco Packet tracer / GNS3 network simulator/ Windows 2012 Server

Greater Chicago Area

Supporting AWS Cloud operation and Cisco Unified Solution based Network Enabled Service support for the followings, but not limited to.o Amazon Cloud Operations lead teaming with Cloud migration and Testing Teamso Wireless QoS remediation for Skype for Business applicationo Network modernization project in Canada to support WLAN, LAN, WAN, and Firewallo Advising the advisory recommendations of new Cisco SDN vs. Meraki Cloud based solutionso Design/deployment/integration/managing/troubleshooting the Cisco Unified Wireless Solution comprising• Design wireless site classification connecting multi-site campus LANs and developing network Topology• Cisco Prime Infrastructure integration (now as part of Cisco DNA)• Cisco Wireless LAN Controller WLC5520, 5508 and WLC2504 • Cisco switch WS-6509-E, WS-C4506-E, 3850 and WS-3705G and ASA5506• Windows Server 2012 and 2016 (Active Directory, DNS, DHCP, WSUS, GPO, option43, and RADIUS)o Developing/documenting the standardization of global LAN implementation templates / High Level Design & Low Level Design Documents/ WLAN implementation processes development o AirMagnet Survey Pro Predictive/pass surveys to locate the existing APs, determine the quantity of AP, optimal AP position and ensure WLAN RF performance (post-installation survey) and resulting in the LAN remediation plan, BOM (Bill Of Materials) o WLAN network integration/migration with Local Area Network comprising access, distribution and core network including not limited to, WLAN configuration, RRM (Radio Resource Management), guest access, FlexConnection, TPC/DCA configuration, Mobility group configuration, AP_group, Web authentication, EAP-TLS, 802.1x integration, MAC filtering, QoS mapping, RF scanner, SNMP integration, RADIUS integration, TACACAS integration, ISE integration, Link aggregation, trunking, access port, vlan configuration, ip-helper, Access Control List, access & distribution switch port subscription engineering and etc.

Greater Chicago Area

Responsible for delivering Ericsson WiFi network solution as a First Office Application Specialist o Leading the standard software release management for the bug fixes and the new feature enhancements to support Ericsson Dual Radio 802.11 Access Point (2.4G & 5G), Wireless Access Controller and Ericsson WiFi network management system throughout the multiple phases of First Office Application process from involving the design study, customizing Ericsson FOA lab for the verification, the proof of concept in the customer lab, and the on-site customer field trialo The production network rollout per new S/W release lifecycle (new green field installation or upgrade, deployment, integration, optimization, and End-to-End customer acceptance in sequential order) o Post deployment support and troubleshooting for the issues, the customer concerns or the network migration issues by leveraging, but not limited to, DHCP (Windows server and Linux), DNS, FTP, TFTP, RADIUS (802.1x), CAPWAP tunnel, PMIP tunnel, network routing and Ericsson SNMP Network Management system (AKA: BelView)o The successful delivery of the network migration from the standalone base 14,000 indoor & outdoor APs to the Wireless Controller base architecture along with Ericsson WiFi Network Management System to cover the city-wide Brighthouse (www.brighthouse.com) WiFi network for Tampa and Orlando, FL scheduled 6/30 2015. • Project management for the new solution development from the design to the network rollout• New Ericsson Wireless Controller (WIC8000 and WIC8050) design/test/integration/delivery• Controller base Solution verification in Ericsson lab and customer lab• Project manager responsibility for Core network Delivery Project management of, but not limited to, the risk management, the communication management and the time management for the critical project milestones of SprintPCS LTE & 3G Core network migration

Greater Chicago Area

Deployment and technical support engineer responsible for an advanced IP based Huawei 3G CDMA Mobile including SS7oIP (STP, IS41, ISUP and roaming translations), Soft-switch, Media Gateway, and network management system integration for CricketWireless www.cricketwireless.com Chicago and San Antonio markets o Customer Technical Support Engineer responsible for 24 x 7 NAR Huawei CDMA 3G Mobile Switching System o System deployment, integration, s/w upgrade and system troubleshootingo On-call duty for the escalation

Greater Chicago Area

• Professional WLAN service engineer responsible for Philadelphia Municipal BelAir WiFi Mesh field trial including WLAN network design, deployment, integration, optimization, and final End-To-End field test • Test Manager responsible for the successful delivery of Lucent CDMA performance management solution scheduled on May 29, 2001 for Telecom Mobile New Zealand (Wellington New Zealand)• Customer technical support engineer responsible for the large scale CDMA 3G Mobile Switching System and EVDO deployments, network integration, dialing plan including 911 and professional service 24 x 7 for VerizonWireless (Washington D.C and Philadelphia) SprintPCS (Denver and Albany), India Reliance (Bangalore), China Unicom (HeFei and Bangbu), Brazil Telefonica (Rio De Janeiro) and SKT Mobile (Seoul and Pusan)• Providing the customers with OJT (On The Job Training) and team member mentoring • AT&T Korea Sales engineer responsible for 2G cellular systems for KMTC (current SKTelcom) in Seoul Korea including technical sales, equipment engineering, and Bid & Proposal