OBJECTIVE

Seeking challenging position in development and research within a growing organization in order to experience long term career growth and make a positive impact on revenues.

Computer Languages: {C/C++, Java, Matlab, Perl, Shell programming and TCL/TK, HTML, PHP} (Mid-level), {C#, Visual Basic, Delphi, Pascal, COBOL, FORTRAN, CGI, XML, ASP, JavaScript, VBScript, AJAX, ColdFusion, Python} (Junior-level).

Operating Systems: {MS-DOS/Windows 95/98/XP/Vista/Embedded, Windows NT/2000/2003 (Active Directory, IIS, Outlook Exchange), Free/NetBSD, UNIX/Linux, Solaris} (Mid-level), {HP, IBM AIX, RTLinux (Embedded Linux), Embedded RTOS, and M.S. Exchange Server 2000/2003} (Junior-level).

Application Softwares: {Map OCX Pro v7.1, CVSNT Source Version Control System, OneOrZero Task Management System, OTRS (Open Ticket Request System), Acronis Backup & Recovery,SpinRite (Hard drive testing tool)} (Senior-level), {Apache, Samba, Visual Studio .NET, VC++ 6.0/2005, Access, Visio, Photoshop, Illustrator, BlueJ, Eclipse} (Mid-level), Vmware converter (Junior-level).

Database Management Systems: MySQL (Mid-level), {Oracle, M.S. SQL 2000/2005, Storage Area Networks (SAN), FreeNAS (Network Attached Storage), and MS SharePoint Server 2003/2007} (Junior-level).

Multimedia Standard Technologies: {MPEG-2/4, H.264/AVC (JM8.6), Extension of H.264 SVC, and VoIP standards} (Senior-level).

Network Management Systems & Simulations:{Verizon Wireless Manager, Network Simulator (NS-2), Smart/Sniffer Pro, e-Watch} (Senior-level), and OPNET (Mid-level).

RF Simulations & Tools: {AVR Studio 4 (Microcontroller, flash programming), JTAG on-chip emulator, SiRFflash (GSP, flash programming), FMEA, Root Cause Analysis, Quality Control Tools} (Senior-level), {P-Spice, HSPICE, LT-Spice, LabView, Orcad, Oscilloscope, Spectrum Analyzer, Voltage/Current measurer} (Mid-level).

Technical Qualification Certificates: Information Processing Engineer (Korea), Electronic Computation Industrial Engineer (Korea), Microsoft Office User Specialist (MOUS), IPCT (Internet Practical Ability Certificated Test) 1st (Korea), Internet Information Searcher 1st (Korea), Keyboarding 1st (Korea), Word-processor 2nd (Office management skill field) (Korea), TIQ (Test of Information Qualification) 1st (Korea), Internet Information Searcher 2nd (Korea), Vendor Marketing Certification (Korea).

Technical Concepts:NMS (Oracle) Development,Network Security, Web Services, RSA, Cryptography, UML, TCP/IP, MVC, Design Pattern/ Refactoring, Concurrency, Thread, Distributed Software, Winsock, HTTP, SSL, SMTP, VPN, Information Retrieval System, Memory/Stack/heap corruption debugging, Regular Expressions, Compiler Construction, .NET, IEEE 802.11a/b/g/n Standards, Wired/Wireless Communications (MIMO, CDMA/CDMA2000) Standards, 4G Technologies (LTE/WiMAX/) Standards, Cross-Layer Design Technology.

PROFESSIONAL EMPLOYMENT EXPERIENCE

Confidential., Annapolis Junction MD
Senior Systems Engineer & Test Project Team LeaderJanuary 2009 – Present 
MDVR OS Application Development Project

• Upgraded and Verified the O.S Versions (Embedded window XP, Bootloader, LinkDemo) of MDVR application systems (30 per week, Video Recorder).
• Managed and troubleshooting the Systems (HW and SW) Quality control, Process/Flow, Failure Analysis, and Maintenance.
• Conducted the Operation management and the Six Sigma methodology / Tools (Root Cause Analysis, FMEA, Control Plans, and Experiments).
• Performed SW / HW Interoperability Test (IOT) of MPEG-4 capture card for MDVR (Mobile Digital Video Recorder).
• Conducted SW / HW Component Interoperability Test (IOT) of MDVR and S100R Router Units.
• Conducted SW QA & HW of Router, MDVR, MDVS, and Video Streamer Systems Circuit Analysis / Maintenance.

Map Tracking System Project

• Developed and Managed Police car Map tracking web applications regarding the customer requrements.
• Developed Police car Map tracking based on Web applications (PHP, JavaScript, AJAX, and MySQL).
• Investigated Wireless application layer (TCP/UCP socket) of Web-based applications (MDVR, S100R, etc).

S100R Router Project

• Upgraded and Verified the new S100R Router systems (100 per year) integrating GPS system.

Server Migration Project

• Migrated legacy web server (OS: Window 2003) to new web server including Link company’s Website, DNS, Mail, FTP, and Airport system server.
• Managed Main Web, DNS, Mail (IMail and hMail), FTP, Airport system, Map, Intranet, and Lisner servers.
• Managed IP address and Configuration/ Maintenance of Router 2600, 2800 series and Firewall Router.
• Installed and configured FTP and MDVS (Mobile Digital Video System) Servers based on FreeBSD OS.

Day-to-day Duties Project (Network Deployment, RF performance Optimization, and Drive Test)

• Provided technical support to Field technicians and customers about their issues.
• Mentored new employees in managing and troubleshooting MDVR and S100R systems.
• Performed & upgraded the field network topology through the drive/protocol testing/data collection in various communication networks (LTE/WiMAX/CDMA, CDMA2000 1XEVDO Rev 0/A/B, IEEE 802.11 a/b/g/n standards, GPS) using sniffer tool and MPEG-4 video codec.
• Analyzed the RF with spectrum analyzer, network optimization, and other critical issues from Field incoming technical issues from customers and work with Field technicians.
• Created solutions from resolved issues for future use by customers and internal personnels. 
• Responsible for creating and maintaining test plan/case documentation, manually executing scenarios, documenting hardware/software defects, working with the Product Development team to resolve defects and verifying MDVR O.S application software.

Technical WriterJanuary 2009 – Present
 Documentation Project

• Created the usage manuals of MDVS, FTP Servers configurations, and all technical documents of company.
• Maintained the troubleshooting books of MDVR and S100R systems.
• Maintained the installation & usage documents of Map tracking web system configurations.
• Developed and maintained the manuals of CVSNT, FreeNAS Servers, 100G Station, S100R Router, MDVR (Mobile Digital Video Recorder) System, and Tranzeo dual AP (Access Point) Server, MDVR Tests.

Confidential, Eatontown NJ
Software Engineer InternJune 2008 – August 2008
H.264/AVC Standards Performance Verification Project

• Researched and analyzed to specific performances and features of all H.264 codec.
• Developed novel Dialogic Media Lab (DML) H.264 codec, Demo version of H.264 codec.
• Performed an evaluation of all H.264 codec such as DML H.264, HHI H.264, Intel IPP, JM8.6, Elecard H.264/AVC, etc.
• Conducted experiments and analysis with JM Reference Model: JM8.6 vs. HHI H.264 and Intel IPP.

Confidential, Melbourne FL
Teaching Assistant (Grading) January 2007 – December 2008
Taught undergraduate & graduate students regarding the concept of Communication Theory, Digital Communication, and Personal Communication System as well as grading the assignment of students.

Research AssistantAugust 2005 - December 2008

• Conducted Study of the multimedia (VoIP, Video) transmissions of wireless networks, Ad hoc, Sensor and Mesh networks, Physical, MAC, and Routing protocol, Cross Layer Design, H.264/AVC video codec, IEEE 802.11a/b/g/n standards.
• Developed a Proposal of Reliable Video Communication (RVC) over Wireless/Wired Networks, a new technique for robust video transmission, Theoretical analysis of RVC using high-rate quantization theory, Implementation of RVC with H.264/AVC framework, End-to-end optimization of RVC.

MILITARY EMPLOYMENT EXPERIENCE

Confidential July 2003 – September 2004
Computation Operation Officer (Rank: Captain)

• Implemented upgrades in computer systems and C4I strategy communications (Spider Networks) for the Korean army subordinates
• Proposed the new computer systems to the army headquarters
• Installed operating system, software and repaired the hardware of desktop and laptop computers, wired LANs

Confidential January 2002 – July 2003
Program & Operation Director (Rank: First LT.)

• Developed and consulted programs and computer systems and C4I communications to support Logistics
• Installed operating system, software and repaired hardware of desktop and laptop computers, wired LANs
• Managed UNIX Server and window server, Installed / checked video conference, and network maintenance

Confidential August 2001 – January 2002
Computation Director (Rank: First LT.)

• Developed and consulted programs and computer systems to support the different departments
• Installed operating system, software and repaired hardware of desktop and laptop computers, wired LANs
• Managed UNIX Server and window server, Installed / checked video conference, and network maintenance

EDUCATION

Ph. D of Electrical and Computer Engineering 
Dissertation Title: Supporting Multimedia Quality of Service (QoS) in Wireless Networks

Master of Computer Science and Engineering 
Major: Computer Engineering
Thesis Title: Performance Comparison between ATM and Gigabit Ethernet in order to construct the Defense Information Communication Network

Bachelor of Semiconductor Engineering 
Major: Semiconductor Engineering
Thesis Title: CMOS Process Design for 64M DRAM Application