Johnny Ho
Johnny Ho is a co-founder of Perplexity AI, which presents itself as an answer engine. Before founding Perplexity, he worked as a high-frequency trader at Tower Research Capital and as an engineer at Quora. He studied math and computer science at Harvard and in 2012 ranked first in the world at the International Olympiad in Informatics, with a perfect score. He co-founded Perplexity with Aravind Srinivas, Denis Yarats and Andy Konwinski in August 2022. As of October 2026, he serves as chief strategy officer of Perplexity and leads its product work.
- Now at
- Perplexity
Timeline
-
2012
First place at the IOI
At the International Olympiad in Informatics in 2012, he ranks first in the world, earning a perfect score.
-
By 2022
Trading and engineering roles
He studies math and computer science at Harvard. Before founding Perplexity in 2022, he works as a high-frequency trader at Tower Research Capital and as an engineer at Quora.
-
2022
Co-founding Perplexity
With Aravind Srinivas, Denis Yarats and Andy Konwinski, he co-founds Perplexity AI in August 2022.
-
April 2024
Explaining how Perplexity builds product
In April 2024, he explains how Perplexity builds product, as its co-founder and head of product.
-
September 2024
Podcast on the answer engine
On the Generative Now podcast in September 2024, he explains how Perplexity distinguishes itself as an answer engine.
-
February 2026
Speaking at the AAEOY conference
In February 2026, he is named a featured speaker at the Asian American Executive of the Year conference.
-
As of October 2026
Co-founder and strategy chief
He is co-founder and chief strategy officer of Perplexity; in 2026 he still leads its product work.
Sources and credits
Photo: We have no published photo of Johnny Ho yet. Send us a free-licensed photo.