Charles Chung-Kuo Chang

1436 Linbrook Ct. Columbus, OH 43235

Cell: (614) 584-7074 home: (614) 847-1026

changchungkuo@gmail.com

 

 

PROFESSIONAL EXPERIENCE

Contractor at Centurylink (via InsightGlobal) Columbus, OH               2015

Senior Solution Architect,

Develop business solutions for clients in financial industry. Transform datacenters into cloud computing on OpenStack and PAAS. Coordinate software development effort among client, PM, and development teams.

 

Contractor at AT&T (via SunTechnologies) Columbus, OH & Middletown, NJ   2007 - 2014

Systems Engineer & Solution Architect, NFV, 4G LTE

·         Design the Network Functions Virtualization solution for 4G LTE networks. Solution architect for projects to connect NFVs with OSS/BSS systems.

·         Solution Architect for servicer assurance system of VoLTE networks. Design service architecture for EPC and IMS Core. Provide PM/CM/FM solutions for VoLTE over 4G LTE networks.

·         Tier 2/3 SE on performance management of VoIP networks. Design data collectors and data analyzers using CDRs and SNMP traps. Lead design team on integration of VoIP, IMS, and SS7 networks.

 

IUPUI, Indianapolis, IN        2002 - 2006

Associate Professor, Computer Science and Informatics

·         Initiated a research group to work with medical school on research projects to develop metropolitan area medical networks. Applied Semantic Web technology to provide service integration over health facilities.

·         Research on the mobility issues of broadband wireless networks. Studied fast handoff algorithms to support continuous coverage of real-time video streaming over broadband networks.

 

Lucent Technologies, Columbus, OH1996 - 2001

Member of Technical Staff, Wireless Group

·         Developed call-processing software for TDMA and CDMA 2G and 3G products. Implemented 3-way calling, call forwarding, call waiting features on the mobile switching center using C/C++.

·         Designed the 3G mobility managers and developed the technical specifications for each module based on SIP.

·         Lead Korean and China development teams.

 

AT&T Bell Laboratories, Columbus, OH 1992 - 1996

Member of Technical Staff, VOIP & SS7 Group

·         Developed SS7 signaling products on the STP and NCP projects. Implemented SS7 ISUP and TCAP protocol using IS41 standard. Delivered LNP and pre-paid credit card features.  Worked on MTP, SCCP, and X25.

·         Designed the Voice over IP gateway for Telco customers. In charge of end-to-end call processing over SIP, SS7, ISDN and H.323 protocols.

 

Ohio State University, Columbus, OH1987 - 1991

Assistant Professor, Computer Science Department

·         Taught courses in Computer Networks, Computer Architecture, Compilers, and Programming Languages.

·         Developed research groups in Distributed Computing and Fault-tolerant computer systems.

 

 

PhD/ MA Computer Science, University of Texas, Austin, TX

BS. Electrical Engineering, National Taiwan University, Taipei, Taiwan