Wei-Wei Wu is Co-Founder and CEO of Momentic, an AI-native testing platform that lets engineering teams write end-to-end tests in plain English.

Wei-Wei built infrastructure and real-time features at Assembled, and was the first employee and founding engineer at Nashi, which Density acquired in 2021. Earlier roles included engineering positions at WeWork and Qualtrics, and he holds a Computer Science degree from the University of Minnesota.

Wei-Wei and co-founder Jeff An are engineers who personally felt the pain of maintaining flaky test automation at scale. He remains hands-on with customers and product launches, and also shares his work on X.

Momentic went through Y Combinator's Winter 2024 batch and raised a $3.7M seed round in March 2025 and a $15M Series A led by Standard Capital in November 2025. Total funding stands at roughly $19.2M, with backing from Dropbox Ventures, General Catalyst, and FundersClub.

Momentic serves customers including Notion, Xero, Bilt, Webflow, and Retool, and has automated more than 2 billion test steps. The platform has expanded from web to Android and iOS testing and offers a native MCP server for AI coding agents.