Masami(SAMY) Mizukoshi

GTM Leadership at OpenAI

Chiba, Japan2.4k followers
OpenAIex-Salesforceex-Slack

My career started to work for Japanese Manufacturing Company as a Development Engineer in 1999. And then, I have been working as a Pre-Sales of some exciting products and solutions in variety of industries with wonderful colleagues for more than 15 years.

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Now I'm enjoying tapping a new collaboration market, building an amazing team, working with customer to make their life more productive and pleasant at Slack. Area of Technologies: SaaS, CRM, Analytics, ECM, BPM, RDB, Social, Collaboration Industry Experiences: Insurance, Financial, Manufacturing Development Experiences: Java, C++, VB

Career Timeline

JobSchool

GTM Index

  1. OPENAIJOB
    1. GTM Leadership at OpenAI
      1Y 5M
    2. GTM at OpenAI
      3M
  2. SALESFORCEJOB
    1. Senior Dir, Head of Soluti…
      10M
    2. Senior Dir, Solutions Eng…
      9M
    3. Dir, Solutions Eng of Japa…
      2Y 3M
    4. Sr. Mgr, Solutions Eng of…
      4M
    5. Principal Solutions Eng fo…
      4Y 10M
  3. SLACKJOB
    1. Sr. Mgr, Solutions Eng, Ja…
      3M
    2. Mgr, Solutions Eng Japan
      1Y 8M
    3. Sr. Solutions Eng Japan
      1Y 3M
  4. IBMJOB
    1. Senior Advisary ITS, Softw…
      11Y 9M
  5. TOPCON CORPORATIONJOB
    1. Software Developer
      2Y 11M
  6. TOSHIBA (LANDIS GYR)JOB
    1. Software Development Eng
      1Y 8M

Time in market 27Y 6MOpen 2Closed 12Stints 14

gtmindex.io/p/samy-mizukoshi

  1. Job: OpenAI — GTM Leadership at OpenAI · 2025-05 – present · 1y 3mo
  2. Job: OpenAI — GTM at OpenAI · 2025-03 – 2025-06 · 3 mo
  3. Job: Salesforce — Senior Director, Head of Solutions Engineer at Tableau & Slack Business Unit of Japan and Korea · 2024-05 – 2025-03 · 10 mo
  4. Job: Salesforce — Senior Director, Solutions Engineer of Japan and Korea at Slack Business Unit · 2023-08 – 2024-05 · 9 mo
  5. Job: Salesforce — Director, Solutions Engineer of Japan and Korea at Slack, A Salesforce Company · 2022-02 – 2024-05 · 2y 3mo
  6. Job: Salesforce — Sr. Manager, Solutions Engineer of Japan and Korea at Slack, A Salesforce Company · 2021-10 – 2022-02 · 4 mo
  7. Job: Slack — Sr. Manager, Solutions Engineer, Japan and Korea · 2021-07 – 2021-10 · 3 mo
  8. Job: Slack — Manager, Solutions Engineer Japan · 2020-02 – 2021-10 · 1y 8mo
  9. Job: Slack — Sr. Solutions Engineer Japan · 2018-11 – 2020-02 · 1y 3mo
  10. Job: Salesforce — Principal Solutions Engineer for FINS at Large Enterprise · 2014-01 – 2018-11 · 4y 10mo
  11. Job: IBM — Senior Advisary ITS, Software Technical Sales for RDB, ECM, BPM and FileNet · 2002-04 – 2014-01 · 11y 9mo
  12. Job: Topcon Corporation — Software Developer · 1999-04 – 2002-03 · 2y 11mo
  13. Job: Toshiba (Landis Gyr) — Software Development Engineer · 1999-07 – 2001-03 · 1y 8mo — Working at TOSHIBA digital media engineering as an assignee from TOPCON.
  14. School: Tokyo University of Science — Bachelor degree of Physics, Physics

Skills

MakeVisual BasicSolarisOracleDatabasesSoftware DevelopmentProgrammingCloud ComputingTechnical RecruitingJavaWindowsC++Enterprise Content ManagementBusiness DevelopmentCRMSaaS

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