# Yunhao Jiao

> Yunhao Jiao is the co-founder and CEO of TestSprite, a Seattle startup building an autonomous AI testing agent that aims to be the verification layer for AI-generated code. A competitive programmer turned AWS engineer, he left a five-year run at Amazon after a single production regression on an on-call shift convinced him that verification, not generation, had become software's weakest link. Since founding TestSprite in 2023 with Shawnie Shan and Rui Li, he has grown it to roughly 100,000 developers and raised about $8.1 million across pre-seed and seed rounds, led most recently by Trilogy Equity Partners.

- **Role:** Co-founder & CEO at TestSprite
- **Organizations:** TestSprite, Amazon Web Services (AWS), Techstars, MiraclePlus (YC China)
- **From:** Hangzhou, China
- **Nationality:** Chinese
- **Education:** Computer Science, Zhejiang University, Chu Kochen Honors College, Research, University of Michigan, Master's in Computer Science, Yale University
- **Known for:** Built the testing backbone for AI-native development used by nearly 100,000 developers and QA teams, Raised approximately $8.1 million across pre-seed and seed rounds, Built the Contract Tests framework for AWS CloudFormation during five years at Amazon

## Career timeline

- **2017** — Published his first NLP/AI research paper as lead author
- **2018-2019** — Earned a master's degree in Computer Science at Yale University
- **2019-2023** — Senior Software Engineer at AWS; built the Contract Tests framework for AWS CloudFormation
- **2023** — Co-founded TestSprite in Seattle with Shawnie Shan and Rui Li
- **2024** — Completed Techstars and MiraclePlus (YC China); TestSprite entered early access
- **2024-11** — Raised $1.5M pre-seed round
- **2025-10** — Raised $6.7M seed round led by Trilogy Equity Partners; total funding ~$8.1M

## Achievements

- Built the testing backbone for AI-native development used by nearly 100,000 developers and QA teams
- Raised approximately $8.1 million across pre-seed and seed rounds
- Built the Contract Tests framework for AWS CloudFormation during five years at Amazon
- Published his first NLP research paper as lead author in 2017
- Served as editor for a Chinese High School Artificial Intelligence textbook
- Selected for both Techstars and MiraclePlus (YC China) accelerator programs

## Latest updates

- **2025-10** — TestSprite closed a $6.7M seed round led by Trilogy Equity Partners, bringing total funding to about $8.1M, with the platform reaching nearly 100,000 developers.

## Links

- Website: https://testsprite.com
- LinkedIn: http://www.linkedin.com/in/yunhaojiao
- Instagram: https://www.instagram.com/yunhaojiao/

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Profile page: https://yespress.io/yunhao-jiao
Published by YesPress — https://yespress.io
Last updated: 2026-06-20