Established Build Block Inc. C-corp in US

Silicon Valley, California


Selected for Korea’s Ministry of Science and ICT’s Innovation Program

Established BuildBlock C-corp in Korea

Yeouido, Korea


Selected for 2019 UC Berkeley Business School's Launch Incubating Program

1st Prize in 2019 UC Berkeley Launchathon Entrepreneurship Competition


Selected for Stanford Venture Studio at Stanford Business School's Startup Incubating Program

Selected for excellent company at Seoul Business Agency(SBA)


Selected for Berkeley Skydeck Incubating Program


Selected for IGIS TechUP+

IGIS Asset Management, FuturePlay


Raised Seed Investment

FuturePlay, Donamu & Partners, Shinhan Capital, Primer Sazze, Hana Ventures

Partnership with City of Seoul

Mayor of Seoul

Selected for Shinhan Future's Lab. - Silicon Valley

Shinhan Financial Group


Selected for the Seoul FinTech Lab Support Company


Partnership with Shinhan Bank America


Selected for TIPS (Tech Incubator Program for Startups)

Ministry of SMEs and Startups


Selected for IBK Changgong

Industrial Bank of Korea


Raised Pre-A Investment

IBK, Shinhan Capital, KB Investment


Winner of Maekyung Fintech Awards 2021

Maeil Business Newspaper

Our Team


Jimmy Jung

Founder / CEO

  • M.S. in Management Science & Engineering (Stanford University)
  • M.S. in Civil Engineering (UC Berkeley)
  • B.S. in Architectural Engineering/Business Administration (Yonsei Univ.)
  • Civil Engineering and Urban Planning (INSA de Lyon, France)
  • Google, HQ project Contract & Cost Project Manager
Based on his study in Management at Stanford University and Engineering at UC Berkeley, Jimmy has worked as a Project Manager to manage Google’s new headquarter construction project in Silicon Valley. Jimmy is a Licensed Professional Engineer in Mechanical Engineering and Civil Engineering in US, and certified Project Management Professional.

Kyongtak Cho


  • PhD. in Computer Science (University of Michigan, Ann Arbor)
  • M.S. in Electrical and Computer Engineering (Seoul National Univ.)
  • B.S. in Electrical Engineering (Yonsei Univ.)
  • Lyft, Software Engineer
  • Intel, Cyber Security Engineer
  • Ford Silicon Valley Lab, Security Research Intern
Upon completing his PhD. in University of Michigan on Information Security, Kyongtak worked as a Software Engineer in the Identity space at Lyft. Based on such an experience, Kyongtak is now responsible for the development of BuildBlock’s online service as a CTO.

Jiwoong Lee


  • B.S. in Architectural Engineering (Yonsei Univ.)
  • UAUS, President (non-profit)
  • Yonsei Enterprise Support Foundation / Team 202, Co-Founder
Jiwoong is a founder of the Korea’s largest non-profit organization on architecture exhibits called UAUS. He acted as the commissioner of 2017 UIA, Global Architecture Competition held in Seoul. Jiwoon is also a founder of Team202 that focuses on education service and fashion.

Jukwang Lee


  • Economics (Sungkyunkwan Univ.)
  • APR Corp., CEO (APRILSKIN, medicube, NERDY, GLAM.D, Forment)
  • Named in Forbes 30 under 30 Asia
  • Ministry of Employment and Labor Award
  • President's Award for Job Leaders
He is the founder and co-leader of APR, a successful global media and commerce company. It has AprilSkin, NERDY, and Medicube under its wings, with achieving 10 million customers and 180 billion won in annual revenue. He was named in Forbes 30 under 30 Asia. As an advisor for BuildBlock, from initial start-up to IPO, he provides practical assistance in establishing and implementing company-wide strategies essential for company growth.
Tech Engineering

Sungmin Lee

Engineering Director

  • M.S. in Computer Science (Brown Univ.)
  • Zillow Group, Sr.Software Engineer
  • Oracle, Software Engineer

Jeongyoub Baik

Product Manager

  • B.Arch (Yonsei Univ.)
  • Design Studio TwoBricks, CEO
  • Team 202, Co-Founder
  • Yonsei Enterprise Support Foundation

Eunbyul Jo

Front-End Software Engineer

  • B.Arch (Yonsei Univ.)
  • Design Studio TwoBricks, UI/UX Designer
  • Team202, Front-End Engineer
  • underconst, Designer
  • MySafeCoin, Front-End Engineer

Jeahong Hwang

Software Engineer

  • B.S. in Computer Science and Engineering (Univ. of Seoul)
  • Until Burnout, Co-Founder
Biz Dev / Marketing

Heather Ahn

Business Director

  • M.A. in Conference Interpretation (MIIS)
  • B.A. in Political Science and International Relations (Yonsei Univ. UIC)
  • Samsung Electronics, in-house translator

Soyoon Bang

Marketing Lead

  • B.Arch (Gachon Univ.)
  • Now Architects , Intern
  • Yul Architects , Project Leader/Junior Architect

Yungi Jung

Design Director

  • M.Arch (Harvard Univ.)
  • B.Arch (Hongik Univ.)
  • Herzog & de Meuron, Designer (Switzerland)
  • Kohn Pedersen Fox, Designer (New York, U.S.)
  • Harvard University, Master of Architecture

Jungsoo Lee

Construction Director

  • B.S. in Architectural Engineering (SEOULTECH Univ.)
  • JAKOB SCHIEL, Architect
  • THE SYSTEMLAB, Project Leader/Senior Architect
  • BS architects, Junior Architect
  • iArc architects, Junior Architect/Grasshopper developer
  • CHORA IN LONDON, Junior Architect/Grasshopper developer

Sangho Kwon

Project Manager

  • B.S. in Architectural Engineering (SEOULTECH Univ.)
  • JAKOB SCHIEL, Project Leader
  • J&S HANBAEK, Project Manager
  • CEDAR IN HAWAII, Foreman (Hawaii, U.S.)

Jaeseong Bae

Project Lead

  • B.Arch (Kyungpook Univ.)
  • Procon Enterprise inc., Estimator (Virginia, U.S.)

Sungbin Park

Project Lead

  • B.S. in Architectural Engineering (Chung-Ang Univ.)
  • Republic of Korea Army, Construction Management Officer (First Lieutenant)

Ayoung Kim

Real Estate Analyst

  • M.S. Real Estate Development (Columbia Univ.)
  • B.Arch (Chung-Ang Univ.)
  • Haenglim Architecture & Engineering, Intern