Johnny Ho is the co-founder and Chief Strategy Officer of Perplexity, where he leads product. Before founding Perplexity, he worked as a high-frequency trader at Tower Research Capital and as an engineer at Quora. A former competitive programmer, Johnny is a three-time gold medalist at the International Olympiad in Informatics (IOI). In 2012, he ranked first in the world at IOI, earning a perfect score. He holds a degree in math and computer science from Harvard University and is based in New York City.