While earning her B.A. at Korea University, Hyemin interned at the Ministry of Foreign Affairs and Trade based on experience in Universidad de Pontificia Católica de Chile. After the school, she worked at STX corporation as a project manager for new strategic business development and investment for STX Group.

Inspired to start-ups by her network, Hyemin joined Rocket Internet and co-founded their first subscription business model, Glossybox, and led expansion to 7 Asian countries. She then established People & Co., Ltd, an e-commerce and marketing consulting startup, with the co-founders of Rocket Internet as CEO. And as soon as she met co-founders at Noom that is top grossing healthcare app based on AI, its healthy and global vision moved her so she brought Noom from NewYork to make Koreans much healthier in a smart way. She has led NoomKorea for 2.5 year since 2012 Dec and is currently preparing her own startup again. Now she is a venture advisor of 500 startups and a mentor of Google campus Seoul to support to build Korean startup ecosystem. Also she is currently preparing a new startup, Finda that provides the best financial products based on data analysis.