---
title: "Andrzej Mazur (@end3r) | Hashnode"
description: "Web Game Developer. Read the latest articles by Andrzej Mazur on Hashnode."
url: "https://hashnode.com/@end3r"
---

@end3r

# Andrzej Mazur

@end3r · Warsaw, Poland · Joined August 2020

Web Game Developer

[Website](https://end3r.com/)

## Comments

[That's impressive, thanks for sharing!](https://hashnode.com/posts/serendipity-or-how-we-organised-a-tech-conference-for-250-people-in-just-2-months/65c3d807a1d66ea08e90d95f/comment/65cb2e91a688153f8333f84c)

Comment · Article · Feb 13, 2024 · [Serendipity, or how we've organised a tech conference for 250 people in just 2 months](https://hashnode.com/posts/serendipity-or-how-we-organised-a-tech-conference-for-250-people-in-just-2-months/65c3d807a1d66ea08e90d95f)