Kohsei Ishihara: Email & Phone Number

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Sinior Applications Engineer at Rakuten|Tokyo, Tokyo, Japan

Position:

Sinior Applications Engineer at Rakuten

Location:

Tokyo, Tokyo, Japan

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Last updated: 2026-08-17

Updated: 2026-08-17

Found email addresses for Kohsei Ishihara:

Business emails:

k************a@rakuten.com,

k*************a@rakuten.com

Personal emails:

k*****0@gmail.com

Found phone for Kohsei Ishihara:

+81-***-***-6669

A different Kohsei Ishihara?

Work Experience 26 years

Sinior Applications Engineer at Rakuten

May 2023 - Current

Web Application Developer / Frontend Engineer / SRE at 株式会社 Speee

Sep 2018 - Sep 2022

Web Application Developer at Cospa Creation Inc.

Aug 2012 - Jul 2018

Web Application Developer at Welox Co., Ltd.

Dec 2009 - Jul 2012

Web Designer at Pacific Software Publishing, Inc.

Jul 2007 - Jul 2008

Web Application Developer at Pacific Software Publishing, Inc.

Feb 2007 - Jun 2007

Web Application Developer at i-call, Inc.

Jul 2002 - Jan 2007

Web Application Developer at Uproad, Inc.

Dec 2000 - Mar 2002

Kohsei Ishihara started working in 2000, then the employee has changed 6 companies and 3 jobs. On average, Kohsei Ishihara works for one company for 2 years 10 months.

Kohsei is proficient in English and Japanese. Their professional focus is Active Server Pages (ASP), Adobe Illustrator, and Adobe Photoshop across 3 core areas.

Education

Deploma in technology(専門士) at Kumamoto computer college

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