"Ad Contex", Location-based In-App Ad Service Development
"Super-easy to advertise your shop." - Ad Contex is the location based advertising platform. - Providing "behavioral ads" by using sensing data. ･Analyzing the data in real time, and send the ads based on user activity.
Sensing data ･Location(GPS, Wi-Fi signal) ･Acceleration meter ･Illuminance meter ･Magnetic sensor ･Microphone
2014-4 - 2015-8
"Cloud Pocket", Cloud Storage Service Development
•Solved performance problem in detecting the file update by making it at least 100 times more efficient compared to hash-based algorithm while keeping CPU usage under 10%. •Dockernized name node and 9 data nodes (region servers) for Hadoop/HBase, app server and web server.
2013-11 - 2014-3
"Ohisama Navi" - Web Site Development
Provided cost estimating service for install solar panels on a roof. Users can get estimate sheet from some constructors by providing the information such as the building type, the roof's size and direction.
2011-9 - 2011-12
"Family Channel" - Social Networking Service (SNS) Development
Developed the world’s first SNS which users can share photos on web and TV using TV carrier line. Accepted a big job offer from a venture capitalist, Nippon Technology Venture Partners (founded in 1998, 14 billion yen in capital under management) to develop SNS for their TV company, Japan Cable Cast Inc. (founded in 2002, Capital: 100 million yen, Sales: 38.9 billion yen).
•Decreased the delay from 5 seconds to less than 100 milliseconds in switching photos caused by TV’s limited CPU. •Defined new API to transmit data and photos to Japan Cable Cast Inc.’s system. •Experienced with unit testing, design documentation and integrating systems.
2011-2 - 2013-11
"Puri Camera" - iPhone / Android App Development
Developed Japan’s bestselling app in the photo category in February of 2010. Sales of over $210,000 worldwide. •Newly-Invented the method of drawing graffiti in zoom mode. Users were able to write messages neatly even if device screen is small, and influenced other apps. •Increased the frame rate by 60 times by redrawing only where necessary.
2009-9 - 2012-3
Billing System Development
•Automated billing by calculating cost of each communication from huge amount of raw data.
2005-4 - 2008-5
Family Channel - the world's first SNS for sharing photo on TV and web.
TV interview by NHK
My iPhone app was introduced as the most useful make-up app on December 10, 2011. (NHK, Japanese ...