Błażej Kustra

Senior React Native Developer at Software Mansion, based in Kraków, Poland. For 6+ years I've been building mobile and universal apps that ship to real users.

I maintain open source libraries with over 1,000 stars on GitHub, ran a workshop on universal React Native apps at App.js Conf, and build my own products like CookinBuddy. Lately I'm deep into agentic engineering — using AI agents to ship faster without cutting corners.

If you want to talk React Native, open source, or something you're building, get in touch.

Projects

Posts

  1. The Gauntlet Loop Rebuilt a Game I Loved as a Kid
  2. Prompts Shouldn’t Be Tested by Eye. Here’s How to Measure Them Properly
  3. What I Learned Running 3 Claude Agents in Parallel for a Week
  4. Onboarding in React Native Doesn’t Have to Be Hard
  5. See all →