About Us. Sparkle Power Inc. (SPI), founded in 1993, is one of the largest leading switching power supply manufacturers in the world. Located conveniently in both Fremont and City of Industry, California, we provide our customers with engineering and technical support as well as just-in-time delivery for power supply needs from our local warehouses. We are looking for a Sales Account Manager to join our team. The Account Manager’s role is to mana...