Yo Ko: Email & Phone Number

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Vice Senior Manager at Rakuten|Tokyo, Tokyo, Japan

Position:

Vice Senior Manager at Rakuten

Location:

Tokyo, Tokyo, Japan

View Yo Ko's Email

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Last updated: 2026-06-03

Updated: 2026-06-03

Found email addresses for Yo Ko:

Business emails:

y***o@rakuten.com

Found phone for Yo Ko:

+81-***-***-4339

A different Yo Ko?

Work Experience 21 years

Vice Senior Manager at Rakuten

Jul 2016 - Current

Vice Manager at Rakuten

Oct 2013 - Dec 2017

Software Engineer at Works Applications Co., Ltd.

Oct 2010 - Sep 2013

Project Manager at Hewlett Packard Enterprise

Jun 2007 - Sep 2010

Software Engineer at Hewlett Packard Enterprise

Apr 2005 - May 2007

Yo Ko started working in 2005, then the employee has changed 2 companies and 3 jobs. On average, Yo Ko works for one company for 4 years 6 months.

Yo is proficient in English and Japanese. Their professional focus is Apache, C, and Delphi across 3 core areas.

Education

Bachelor of Business and Commerce at Keio University

Frequently Asked Questions

What is Yo Ko's email address?

SignalHire found a verified business email address for Yo Ko: y***o@rakuten.com.

What is Yo Ko's phone number?

SignalHire found a verified phone number for Yo Ko: +81-***-***-4339.

How do I contact Yo Ko at Rakuten?

You can reach Yo Ko through SignalHire by unlocking their verified email and direct phone number (free signup, no credit card needed). SignalHire is the fastest route if you need their contact details immediately.

What is Yo Ko's professional background?

Yo Ko has 21 years of professional experience. They have held roles including Vice Manager, Software Engineer, and Project Manager at companies such as Rakuten, Works Applications Co., Ltd., and Hewlett Packard Enterprise. Their education includes Bachelor of Business and Commerce from Keio University.

Is Yo Ko's contact information up to date?

Yes. Yo Ko's SignalHire profile was last updated on 3 June 2026, reflecting their current position as Vice Senior Manager at Rakuten in Setagaya-ku, Tokyo, Japan.

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