Kohsei Ishihara

Kohsei Ishihara: Email & Phone Number

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Applications Engineer at Rakuten|Tokyo, Tokyo, Japan

Position:

Applications Engineer at Rakuten

Location:

Tokyo, Tokyo, Japan

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Last updated: 2026-04-25
Updated: 2026-04-25

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Work Experience 26 years

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.

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

Frequently Asked Questions

What is Kohsei Ishihara's email address?

SignalHire found a verified business email address for Kohsei Ishihara: i******i@rakuten.com.

What is Kohsei Ishihara's phone number?

SignalHire found a verified phone number for Kohsei Ishihara: +81-***-***-5695.

How do I contact Kohsei Ishihara at Rakuten?

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What is Kohsei Ishihara's professional background?

Kohsei Ishihara has 26 years of professional experience. They have held roles including Web Application Developer / Frontend Engineer / SRE, Web Application Developer, and Web Application Developer at companies such as 株式会社 Speee, Cospa Creation Inc., and Welox Co., Ltd.. Their education includes Deploma in technology(専門士) from Kumamoto computer college.

Is Kohsei Ishihara's contact information up to date?

Yes. Kohsei Ishihara's SignalHire profile was last updated on 25 April 2026, reflecting their current position as Applications Engineer at Rakuten in Setagaya-ku, Tokyo, Japan.

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