23-year-old cofounders left Amazon and Microsoft to build an AI startup. Read their Y Combinator pitch deck.

Two 23-year-old engineers left Amazon and Microsoft to found Bluejay and graduated from Y Combinator's spring 2025 batch. The San Francisco startup raised $4 million in seed funding led by Floodgate with participation from YC, Peak XV, Homebrew, and executives from Hippocratic AI, Deepgram, and PathAI. Bluejay provides quality assurance for AI agents, focusing on voice agents, and generates synthetic customers that simulate different languages, accents, background noise, and personalities. The platform can simulate a month's worth of agent interactions in minutes. The team operates from a San Francisco hacker house and uses scrappy branding and grassroots marketing.

Earlier this year, two 23-year-old engineers left their jobs in Big Tech to start their own company, Bluejay. Just months later, they've raised $4 million in seed funding for their AI agent-testing startup. The San Francisco-based company provides quality assurance for AI agents, with a focus on voice agents. Bluejay cofounders Rohan Vasishth and Faraz Siddiqi exited Amazon and Microsoft, respectively, and they graduated from Y Combinator's spring 2025 batch.

Vasishth told Business Insider he chose to leave his first job out of college because the promise of AI is unfolding rapidly. "I don't need to stay here for six years to learn about it," he said. "In fact, I will learn about it probably faster by just doing it." Floodgate led Bluejay's seed round, with participation from Y Combinator, Peak XV, and Homebrew. Executives from Hippocratic AI, Deepgram, PathAI, and others also invested in the company.

Bluejay stress-tests AI agents by generating synthetic customers that can contend with different languages, accents, background noise, and personalities. It says it can simulate a month's worth of AI agent interactions in minutes. Vasishth and Siddiqi are building the company at a San Francisco " hacker house" alongside their first hire, a founding engineer, Vasishth said. Vasishth says the company's "super scrappy" attitude, lighthearted branding, and mascot help it stand out among competitors.

Read at Business Insider