Quora
Aravind SrinivasResearcher
Perplexity
Co-founder and CEO
via Perplexity
Engineer · Founder · Executive
Johnny Ho
JH
Co-founder and CSO at Perplexity
Ho is a co-founder of Perplexity AI, the conversational answer engine, where he has led engineering and strategy. A competitive-programming standout, he worked at Quora and in quantitative trading before starting Perplexity in 2022 with Aravind Srinivas and co-founders.
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Background
Current role
Co-founder and CSOPerplexity
PerplexityPreviously
About this data
Work and education history is primarily focused on AI-relevant roles and may not be comprehensive.
Last editorial review: August 23, 2026