- Design, implement and maintain accounting services

- Developed and maintained multimedia system on KaiOS- Maintain media player(audio,video, photo, FM)- Maintain media streaming(MSE, RTSP)- Integrated DRM system

- Developed and maintained Multimedia firmware code for half of the world’s TV chips • Familiar with audio, video, photo, USB file format spec and implementation • Used indexing techniques for audio fast forwarding, decreasing search time • Implemented audio recording function on FAT file system • 1 short term award for efficient onsite debugging skills • Wrote high quality code that are able to pass Unit Test, Fortify and Coverity software scanning • Technologies: C/C++, Embedded System, RTOS, MIPS, AEON

- Worked as IT engineer in world top 1 foundry, supporting more than 20k users • Analyzed and optimized emails content monitoring system by using Lucene search techniques • Used distributed system techniques to design email server system, increase response time by 70% • Used data mapping to log emails, saving 80% storage spaceTechnologies: Java, JSP/Servlets, javascript, HTML, Oracle, SQL, JBoss

- Detect spam, phishing, malicious email• Cooperate with Taiwan’s largest ISP provider Chunghwa Telecom to filter spam beforehand. Save 1/3 bandwidth if spam didn’t pass ISP router.• Built local Whois server, reduced 50% search time and avoided IP banning from Whois server • Used Lexical, Context, URL base features and machine learning to detect spam, increased 2% accuracy• Technologies: Python, Perl, PHP, Machine Learning, Linux