Liu Ying Pei is a seasoned developer in the trading software industry hailing from Taiwan. With a reputation score of 1765, Pei has developed several trading systems, including the SUM Symbol Switcher, SUM Symbol Switcher MT5, SUM Swing HL n CP MT5, and SUM Market Profile Heat. Despite currently holding no star ratings, Pei's contributions to the trading community showcase a commitment to enhancing trading strategies through innovative tools.