TesterArmy

Test your app with AI, catch bugs before users do

San Francisco

4 employees

Pre-seed · $500K

About TesterArmy

TesterArmy is an AI agent that tests websites and mobile apps. It monitors production on a schedule and runs automatically on every GitHub Pull Request, delivering screenshots, recordings, and actionable bug reports.

Describe tests in plain English. The agent handles login flows, OAuth, and OTPs, no scripts to write or maintain. We catch the regressions and UX issues that code review misses.

Company details

Team Size4

LocationSan Francisco

Funding

Total raised

$500K

Last stage

Pre-seed

Investors

Y Combinator

Founders

Oskar Kwaśniewski

Co-founder & CTO of TesterArmy (YC P26). React Native Core Contributor (100+ PRs merged), created 5+ open-source libraries with over 2.5M downloads. Worked with Vercel, Meta, AT&T, and more.

Szymon Rybczak

Co-founder & CEO of TesterArmy (YC P26). Youngest ever contributor to React Native (at 16), maintained open-source libraries with 3M+ downloads weekly. Worked on v0 iOS with Vercel. 5+ years of commercial experience.

Piotr Matyjasik

AI engineer (TypeScript / React) building LLM agents and full-stack products. Studied computer science in Poland with Oskar Kwaśniewski.

What happens next.

No applications, no recruiter spam. Just the intro.

Confirm the fit

A few questions to make sure this role is the right shape for you. Two minutes.

I pitch you to the company

I write the intro, send it to the founder, and handle the back-and-forth.

A meeting lands on your calendar

If they’re a yes, I book the chat. You show up — that’s the whole job-hunt.