Name: WarsawJS Meetup #139 - onsite
Start: 2026-06-10T18:30:00+02:00
End: 2026-06-10T21:30:00+02:00
Location: WeWork Mennica Legacy Tower

# WarsawJS Meetup **#139** \- You’re invited\!

🗓 Date: 10th June 2026
🕡 Time: 18:30–21:30
📍 Location: [DataArt Warsaw WeWork](https://www.dataart.com/contact-us/warsaw), Mennica Legacy Tower, West Building, Prosta 20, 00-850 Warsaw, 1st floor, Room 01C
What to expect?
🎤 **Łukasz Rybka - Breaking Into Tech in the Age of AI: Why It’s Getting Harder for Junior Developers**
🎤 **Yevhenii Muryi - Advanced testing Strategies for React Native and React**
🎤 **Mateusz Chrzonstowski -** **Documenting your software architecture with C4 model, LikeC4, and (a bit of) Mermaid**
⚡ **Bartosz Cytrowski - Dev tools for your dev tools. How to manage your browser code snippets like a psycho**
Sponsors: [Xfaang](https://www.linkedin.com/company/29002547/admin/dashboard/?createEvent=true#) \| [Nord Security](https://nordsecurity.com/) \| [DataArt](https://www.dataart.com/contact-us/warsaw)
Media partner: [K MAG](https://www.linkedin.com/company/29002547/admin/dashboard/?createEvent=true#)
Partner: [JetBrains](https://www.linkedin.com/company/29002547/admin/dashboard/?createEvent=true#), [Webellian](https://webellian.com)
‼️ By attending the event, you agree to the event regulations:
[https://bit.ly/warsawjs-meetup-regulations](https://bit.ly/warsawjs-meetup-regulations)

Piotr Zientara

Aleksandra Charme

Krzysiek Chojnacki

WarsawJS

Dropbox

Nord Security

Webellian

On The Spot

shroom

Xfaang

K MAG

JetBrains

Technology

Front-end Development

Angular

JavaScript Applications

nodeJS

JQuery

Web Technology

HTML5

JavaScript Libraries

Computer Programming

Web Development

JavaScript

Software Development

Open Source

JavaScript Frameworks

Krzysztof Modras

Piotr Kowalski "piecioshka"

Marcin

Marek Kałużny

Marcin Zajkowski

Paweł C

Piotr Blażejewicz