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People / Kei Yamamoto
KY
Career profile

Kei Yamamoto

Partner Director at OpenAI | Ex Kong, Twilio, Genesys, Interactive Intelligence & Avaya

Tokyo, Tokyo, Japan

Career path.

  1. OpenAI

    Partner Director

    Sep 2025 - Present
  2. Rimrock Co., Ltd.

    CEO

    Dec 2024 - Present
  3. FlashIntel

    Senior Sales Manager

    Apr 2025 - Sep 2025
  4. Kong Inc.

    Senior Partner Sales Manager

    Jun 2022 - Jul 2024
  5. Twilio

    Senior Partner Account Exective

    Sep 2021 - May 2022
  6. Twilio Inc.

    Partner Account Executive

    Jan 2020 - Sep 2021
  7. LivePerson

    Channel Manager

    Jan 2019 - Jan 2020
  8. Genesys

    Cloud/Digital Solution Lead, APAC/Japan

    Jan 2017 - Jan 2019
  9. Interactive Intelligence

    Solution Sales Practice Lead

    Jan 2015 - Dec 2016
  10. Interactive Intelligence

    CaaS Sales Specialist

    Apr 2013 - Jan 2015
  11. Avaya

    UC Product Marketing/UC Solution Architect

    Mar 2011 - Mar 2013
  12. Avaya

    Senior System Engineer

    Feb 2008 - Feb 2011
  13. Netmarks Inc.

    System Engineer

    Apr 2005 - Feb 2008
  14. Nihon Inter Systems

    Field Engineer

    Sep 1999 - Mar 2005