About
Chief Executive Officer
Sangjik Lee
Graduated from Kyung Hee University and began his career as a software engineer at Rakuten. Worked as a Product Manager at a Japan-based startup before joining Mercari, where he held roles as both Product Manager and Engineering Manager. At Mercari, he led internal tools, new business launches, and large-scale product development. After Mercari, he founded GrowthPit, Inc. in 2025.
Founding Engineer
Takuya Mizuma
Gained extensive experience as an engineer at multiple companies including Mercari and Amazon Web Services Japan, developing expertise across a wide range of technical domains. As the Founding Engineer of JapanTechCareers, he builds the technical foundation and provides a platform for global tech talent to build their careers in Japan.
© GrowthFit Inc. 2025