Harper Cheng is an angel investor at Sand Hill Angels. She works as a senior hardware system integrator in Pixel engineering team at Google. She worked as a senior power system design engineer in Mac engineering team at Apple for over 5 years. Prior to Apple, she worked as a power management engineer at Renesas Electronics America and Marvell Semiconductor. She is looking into entrepreneurial opportunities. She is also involved in real estate investment and rental property management. She is very passionate in philanthropy supporting healthcare services and medical research. She has a M.S. degree in Electrical and Computer Engineering from University of California, Irvine, and B.S. degree in Electrical Engineering from University of Science & Technology of China.