- Real-time business cards recognition / management iOS application - Have been engaged in the project since its prototype phase and service launch until now. - Developed business cards recognition interface using both of Cocoa and computer vision knowledge. - Developed many functions of app using reactive programming - Responsible for functions such as networking architecture, internationalization, and various user interactions. - Developed both of client side and also some server side functions including API design. - Analytics and visualization using BigQuery, TreasureData, and DOMO. - Skills: Swift, Rx, Objective-C, C++, OpenCV, Ruby on Rails, Go, BigQuery, TreasureData, DOMO.
- Maintained and developed functions for both of client side and server side. - Introduced an A/B testing architecture into iOS application in order to grow it, including server side. - Successfully introduced Swift into an Objective-C-only project. - Developed Apple Watch app using geolocation information (using Core Location), including server side. - Analytics and visualization using TreasureData and DOMO. - Skills: Objective-C, Swift, Ruby on Rails, AngularJS, TreasureData, DOMO.
2015-8 - 2016-7
Infrastructure construction for multiple services and monitoring systems in DeNA
- Services: Mangabox, MyAnimeList, Showroom, etc. - Maintained existing services as an operation engineer - Maintained a real-time streaming service - Analyzed service performance and eliminated bottlenecks - Automated infrastructure construction processes for new web services using Chef - Skills: Perl, MySQL, Ruby, fluentd, Chef, AWS, Apache, nginx, Nagios, etc.