Jack (Byunghwan) Lee is Chief Executive Officer of Sky Labs. He is focusing on data-driven preventive healthcare which makes many people's life longer and healthier. To achieve this, Jack is responsible for developing cardiac tracker CART to diagnose atrial fibrillation and heart diseases in daily life. He takes advantage of his 15 years of experience developing signal processing systems to create the best healthcare systems and services. Prior to founding Sky Labs, he was a senior R&D engineer at Samsung Electronics R&D headquarter. He led the development of the 5G cellular communication technology and developed it for the first time in the world. He holds a M.S. Electrical Engineering from Korea Advanced Institute of Science and Technology (KAIST).