VP of Engineering
Sotaro started the engineering group Nequal LLC in late 2007. After finishing graduate school at Chuo University in 2010, he joined Gree. In February 2011 he started Crocos, Inc.–a company that offers social marketing tools, and became the CTO. In August 2012, the company was sold to Yahoo. After the acquisition, he continued to lead the business growth of Crocos, Inc. as a Yahoo subsidiary, and also worked in social and business development at Yahoo. He joined Mercari in May 2015, as executive and CTO, unifying their various technological departments. In April 2017, he became Mercari’s VP of Engineering.
Head of Engineering, Souzoh
As the Head of Engineering, Tatsuya oversees the management of the Souzoh development groups. From 2005, he worked at Unoh Inc. where he developed a photo sharing service, and afterwards started his second company. In 2013, he received an offer from Mercari’s CEO Shintaro Yamada, and began to contribute to Mercari from its inception. After Souzoh was established, he began to focus on technologies for new services in addition to design, development and operations. Currently, he manages the development group of Souzoh.
After gaining development experience as a freelancer, Suguru joined CyberAgent, Inc. in 2004. There, he was in charge of the development of new projects, such as those for media and social games etc. He joined Mercari in 2016. Focused on the US, he oversees the development of Mercari’s US service. In April 2017 he became the CTO.
Software Engineer (SRE)
Kenichi joined Mercari in July of 2014, bringing with him his past experience as a system integrator and social game developer. He now works with the SRE team to construct a wide variety of new subsystems here at Mercari, including a deployment automation system.
Osamu joined CyberAgent, Inc. fresh out of university in April 2011 where he worked to develop new services for their media-related projects. In July of 2015 he moved to AbemaTV, Inc. and helped with the development of their AbemaTV platform. He made a mid-career job change and joined Mercari in August of 2016, where he is now a part of Souzoh handling development of the “Mercari Kauru” app. Originally from Kanagawa Prefecture. Also a Gopher. ʕ◔ϖ◔ʔ
Software Engineer (iOS)
Yoichi has been developing and releasing apps on the Apple Platform ever since Mac OS X first came out. He has a PhD in engineering and previously worked at a foreign firm located in Japan helping to develop software to be used for chemical analysis. Yoichi joined Mercari in January of 2017, bringing with him a wealth of freelance/startup experience, and now works primarily on the development of iOS applications aimed at the US market. He is also the author of Swinject, the de facto standard for the Swift Dependency Injection framework.
Software Engineer (Android)
Tsuyoshi joined Sony Ericsson Mobile Communications Inc. (currently called Sony Mobile Communications) as a new university graduate back in 2007. Since then, he has worked to develop software for use on mobile phones in the global marketplace. Tsuyoshi has experience developing across multiple platforms, including FOMA, Symbian S60, and Android. He made a mid-career change and joined Mercari in March of 2016, where he primarily works to develop Android applications aimed at the US market. Oh, and he has a beautiful voice.
Machine Learning Engineer
Takuma has worked on pattern recognition and machine learning research since he was a student. Takuma is a Doctor of Engineering and has done research on image recognition, computer vision and voice recognition, and also train fare calculation algorithms based on operations research methods. After working in data analysis at a large social gaming company, he joined Mercari in 2016. He currently works on the server side, in addition to machine learning focused on photo recognition.
VP of Engineering,
Shinji holds a Doctorate of Information Technology. After spending time as a researcher at NTT, he joined Hatena, Inc. in 2006 and from 2010 worked to integrate their technological divisions, while also acting as a business officer. From September 2016, he joined Mercari as an executive officer, and is currently in charge of UK engineering. He has written many server-side engineering books in Japanese and regularly gives presentations.