Michał Pierzchała

Michał Pierzchała

Head of Technology at Callstack. Passionate about building mobile and web experiences, high quality JS tooling and Open Source for humans and agents. Core React Native Community & Jest contributor, creator of agent-device. Space exploration enthusiast.
Automating Mobile QA with Cloud Agents
AI Coding Summit LondonAI Coding Summit London
Upcoming
Automating Mobile QA with Cloud Agents
This talk shows how to design and operate QA agents that run against real iOS and Android devices hosted remotely. We’ll cover the architecture of a reliable agent, connecting Linux-based infrastructure to mobile devices running on macOS, and integrating outputs like screenshots, recordings, and logs directly into pull requests.
Automated Performance Regression Testing with Reassure
React Advanced 2022React Advanced 2022
16 min
Automated Performance Regression Testing with Reassure
As developers we love to dive into performance metrics, benchmarks, compare one solution to another. Whether we enjoy it or not, we’re often required to fix performance issues in our React and React Native apps. But this process is not sustainable and prone to regressions, especially as the app and team grow. What’s worse, those issues are often discovered by your users, making their experience miserable. In my talk I’ll introduce you to Reassure—a performance regression testing library for React and React Native— which happens to be a missing piece in our automated testing and performance suites. Spotting problems before they hit production.