Software Engineer @ • Revamped and Administered for ~250k QPS distributed data service on top of MongoDB Database. • Re-designed time-sensitive data protocol and MongoDB storage schema in backend service stack. • Integrated with 3 real-time bidding (RTB) suppliers, and coordinated with product manager on migration. • Developed features on RTB system and wrote most of the testcases. From March 2015 to Present (8 months) Greater New York City AreaSoftware Engineering Intern @ • Designed new storage schema to reduce ~30% storage on historical stats; that saved ~78,000 cost per year according to Google Computing Engine pricing. • Added weekly historical keyword stats to the ordered key-value data service (similar to LevelDB). • Built data processing pipeline to generate 20 TB, 2-year-long historical data including weekly stats. From May 2014 to August 2014 (4 months) Greater Los Angeles AreaRails Development Intern @ • Developed analytical tools for business operation and revenue analysis. • Extracted data with Rails back-end and visualized stats with Google Visualization API for front-end. From January 2014 to May 2014 (5 months) Greater New York City AreaBack-end Web Developer Intern @ • Developed full-text search on 2500+ articles, 1500+ products and 45,000+ members with Elasticsearch. • Integrated Elasticsearch with RoR-based website. From July 2013 to September 2013 (3 months) TaipeiResearch Assistant @ Focused on cross-domain image classification problem in multimedia and machine learning field. I developed a robust and discriminative algorithm, which improved 6.9% accuracy compared to the state-of-art solution in cross-domain image classification problem; the result was published in ICIP 2013. From August 2012 to July 2013 (1 year) Taiwan

Master's Degree, Electrical and Electronics Engineering, 3.64 @ Columbia University in the City of New York From 2013 to 2014 Bachelor of Science (BS), Electrical and Electronics Engineering, 3.88 @ National Taiwan University From 2007 to 2011 Yen-Cheng Chou is skilled in: C++, Linux, Ruby on Rails, Ruby, Python, LaTeX, Back-end Programming, Git, Matlab, ElasticSearch, Image Processing, Signal Processing, Machine Learning, Algorithms, Software Engineering, Computer Vision, C, JavaScript