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Seungjin Jung

@seungjin.jung

Leader, Team Learners

Seungjin Jung is Chief Executive Officer of Team Learners, an IT services and consulting company headquartered in Seoul that builds AI photo apps, including the free 피카부 스튜디오, and has held the role since January 2023, building consumer products with AI. Before that came five years at Viva Republica (Toss) from December 2016 to December 2021, spanning Toss Vietnam Leader, Product Owner, Data Analyst, Data Engineer and Server Engineer, with work that drove user growth from 5m to 10m MAU, initiated a non-financial advertisement business generating $10m+ annually, and expanded Toss into the SEA market to 3m+ MAU. Earlier roles include Quantitative Researcher at Wisefn, developing and operating a smart beta ETF index, entrepreneur at a startup from 2013 to 2015, and Full Stack Engineer at Opensurvey. Education was at 한국과학기술원(KAIST) and 한국과학기술원(KAIST) 부설 한국과학영재학교. Public posts cover hiring frontend, server and ML engineers at 팀러너스 as it moves from validating product-market fit in Korea with gen AI toward global users, and share a regularly monitored list of AI, startup, product and US market podcasts along with methods for getting through them quickly.

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Leader, Team Learners

Experience

  • Toss Vietnam Leader, Product Owner, Data Analyst, Data Engineer, Server Engineer - Viva Republica (Toss) Dec 2016 - Dec 2021 (5 years) - drove user growth from 5m to 10m MAU - initiated non-financial advertisement business, $10m+ annually - expanded Toss into the SEA market, 3m+ MAU
  • Quantitative Researcher - Wisefn Dec 2015 - Dec 2016 (1 year) - develop & operate smart beta ETF index
  • Entrepreneur - Startup Jul 2013 - Dec 2015 (2 years and 5 months)
  • Full Stack Engineer - Opensurvey Jan 2012 - Jun 2013 (1 year and 5 months)
  • Chief Executive Officer - Team Learners (Current) Jan 2023 - Present (3 years and 7 months) - building consumer products with AI

Education

  • 한국과학기술원(KAIST) Daejeon
  • 한국과학기술원(KAIST) 부설 한국과학영재학교 South Korea

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