---
title: "Maciej (@mdj) | Hashnode"
description: "Innovation Lead Callstack. React Native, Web3, AI, OSS. Maintainer of RN Testing Library, Reassure. Read the latest articles by Maciej on Hashnode."
url: "https://hashnode.com/@mdj"
---

@mdj

# Maciej

@mdj · Wroclaw, Poland · Joined January 2024

Innovation Lead Callstack. React Native, Web3, AI, OSS. Maintainer of RN Testing Library, Reassure.

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