ChihHsien Chen

Designed and refined a distributed crawler system for crawl data from webs. Implemented a template system for data analysis team to format the data required by themselves. Designed a Weibo session management system.

Designed a periodic system to collect product logs from hundreds of product machines. Formatted collected logs into useful data under specs for data analysis team. Implemented new features according to product engineers demands.

- Communicated with different module teams to resolve system integration issues. - Implemented new features which follow MISRA-C coding rules on different platforms in C. - Verified the specifications of different platforms.

- Developed a script file parser and a signature generator by Java to reduce 40% virus analysis time for file sets. - Implemented Python crawlers and Shell scripts combined with company system for VB100 project to reduce 50% processing time per day. - Collaborated with Canada team to assist customers in Anti-Virus procedures. - Hosted orientation courses and made study plans for new members.

- Built a cloud database service Java web application. - Developed the SQL manipulation Restful services based on Spring MVC and deployed on JBoss server. - Developed a SQL-to-NoSQL translator based on MySQL, PostgreSQL, Apache HBase, and Apache Phoenix as a hybrid backend storage. - Protected code by Zelix Klass Master

- Improved the stability and resource management of the Java socket server. - Enhanced the concurrency control of the Java multithreading. - Designed the system flow between Java socket server and Android mobile clients. - Designed Android app based on requirements.