“Democratize the Future”

John S. Kim (김동신, 金東信) is the Co-Founder and CEO of Sendbird, the no.1 Chat API for mobile apps and websites. (Y Combinator W16, Techstars S14). We power 150M+ monthly chat users on our platform, employ 250+ dedicated team members, and have raised over $220M+ USD to-date from ICONIQ Capital, Tiger Global Management, Steadfast Capital, SoftBank Vision Fund, Meritech Capital, WiLab, Shasta Ventures, August Capital, and Y Combinator.

This blog is intended to be an open-letter to my family and partners, and as a notepad for my thoughts. I hope it will show vulnerability, shortcomings, lessons from my trials and tribulations, to nurture my own growth-mindset and openness to experience.

Previously, I was the Founder and CEO of Paprika Lab, a social gaming company, founded in 2007, grew to 30 people, and got acquired by GREE, a Japanese public company in 2012.

My focus is on building and scaling a technology company. I’ve majored Computer Science and Engineering from Seoul National University. I happen to be Korea’s all-time no.1 Unreal Tournament pro-gamer.


  • The Big Five – slightly more in-depth results are here.
    • Extraversion: Very High
    • Neuroticism: Exceptionally Low
    • Conscientiousness: Very High
    • Agreeableness: Exceptionally Low
    • Openness to Experience: Moderately High
  • DISC: DC
  • Strengths Finder: Achiever, Competition, Activator, Futuristic, Focus

Our Family Core Values

👉 A post on my family’s core values

Theme: Entrepreneurship

  1. Positive Tenacity
  2. Leadership
  3. Learn & Adapt
  4. Think Long-term


Korean Blogs

%d bloggers like this: