Move is an enterprising company that tries various businesses. I am proud that I worked for this company.# Orbi--------------------South Korean educational social community website.- Maintained and developed features to reliably handle ~2.5M/day page views.- Reduced cache miss by more than 90% by improving caching logic.- Handled intermittent spikes during College Entrance Exams, and troubleshot issues relating to the server or AWS.- Prepared for and… Show more Move is an enterprising company that tries various businesses. I am proud that I worked for this company.# Orbi--------------------South Korean educational social community website.- Maintained and developed features to reliably handle ~2.5M/day page views.- Reduced cache miss by more than 90% by improving caching logic.- Handled intermittent spikes during College Entrance Exams, and troubleshot issues relating to the server or AWS.- Prepared for and responded to DDOS attacks that were more than 300 times the usual traffic by complementing AWS WAF with CloudWatch, Lambda and other services.Used Python/Flask, AngularJS, MySQL, AWS, etc.# Mint Technologies Inc. (Spin-off)--------------------Cryptocurrency HFT bots - Developed a trading system that had yielded over 11,000% returns.- Developed a robust infrastructure automatically running 24/7 for cryptocurrency market.- Handled multi-process/threaded environments, meanwhile sharing and monitoring the states and data across the servers.- Implemented my own workarounds for undocumented or unreliable behaviors of market API.Used Python/Flask/Numpy, Vue.js, PostgreSQL, Redis, AWS, etc.# Orbi-Apply--------------------Korean National College Entrance information and prediction website.- Improved concurrent batches that generates personalized PDF reports.- Maintained the data analysis and prediction system.Used Python/Flask, Vue.js, PostgreSQL, AWS, etc. Show less