JS Poland 2025 — The premier JavaScript conference in CEE

## JS Poland 2025 — The premier JavaScript conference in CEE

### One full-day event: Wednesday, November 19 2025 (Warsaw & Online)

Get ready for a gathering where the JavaScript ecosystem shines in all its diversity — frameworks, tooling, architecture, performance, the entire stack. This is a place for every developer who wants to stay on the cutting edge.

### 🎤 Conference Sessions

We’re proud to host a world-class lineup of speakers who are shaping the future of JavaScript:

• Jemima Abu — I Can’t Believe It’s Not JavaScript
• Dr Philippe De Ryck — Breaking and securing OAuth 2.0 in frontends
• Eugene Fidelin — Marko.js: Unsung Hero of Scalable Web Frameworks
• Sylwia Laskowska — Rewrite or refactor? How to safely move legacy apps to modern frameworks.
• Julien Huang — Third parties, improving it with DX
• Nir Kaufman — The Fast and the Curious: Taming JavaScript’s Idle Time
• Soumaya Erradi — TypeScript meets IoT: safe programming for embedded devices
• Tomasz Ducin — Recalibrate Your Tech Skills
• Manfred Steyer — JavaScript as a Crime Scene – Improve your Architecture with a Forensic Analysis!
• Jakub Andrzejewski — Fast & Lazy – Proven patterns for improving web performance
• Markus Ingvarsson — *Bring Your Own Model using Transformers.js*
• Michał Jawulski — Beyond Requests: Postman for Conscious API Developers
• Frizzarin Nicolas — The INP score: What it is and how to improve it
• Önder Ceylan — The Future of Web AI: Integrating On-Device Models and LLMs in the Browser
• Alain Chautard — Introduction to Cypress for end-to-end testing

Each session will challenge the status quo, deliver high-impact knowledge and inspire you to act. Whether you’re focused on core JS, tooling or the future of the web, you’ll find your next big idea here.

### 🛠 Workshops – Tuesday, November 17 2025 (Hands-on, Onsite & Online)

Dive deep into full-day workshops designed to push your skills to the next level. Here are the key workshop offerings:

• Modern JavaScript Architectures, Fall 2025 Edition by Manfred Steyer & Michael Egger-Zikes — future-proof patterns, reactive state management.
• Mastering NgRx SignalStore for Modern Angular Architectures by Alex Okrushko & Rainer Hahnekamp — advanced state management.
• Fundamentals of Software Architecture for AI-Assisted Developers by Tomasz Ducin — system design in the age of AI.
• Mastering TypeScript’s Advanced Patterns for Hardcore Development (Online) by Tomasz Ducin — deep dive into TS patterns.
• Pragmatic JS/Angular Testing – Master Class by Younes Jaaidi — testing that survives change.
• Advanced JS/Angular Performance Optimization – Master Class by Alexander Thalhammer — initial load, change detection, runtime performance.
• AI-Powered Development: Transform Your Workflow by Daniel Sogl — integrate AI tools into dev workflow.
• AI Engineering for JavaScript Developers: Build AI Agents by Nir Kaufman — build real-world AI agents in JS/TS.
• OAuth 2.0 & OpenID Connect Best Practices – Master Class by Dr Philippe De Ryck — securing modern web apps.

### 🌟 Why You Should Attend JS Poland 2025

• Stay on the leading edge: Explore what’s next in JS ecosystem – frameworks, models, performance, tooling.
• Learn from international experts: True practitioners share “what works” and “what to avoid”.
• Leave with tangible value: Sessions and workshops designed for real project impact.
• Hybrid format: Join onsite in Warsaw or online – same great content, flexible experience.
• Network with the community: Connect with developers, architects, tech leads from across Europe and beyond.
• Empower your future: Whether you’re a front-end dev, full-stack, architect or innovator — you’ll gain new perspectives and tools.

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Ready to be part of something significant? Secure your spot at JS Poland 2025, bring your curiosity and commitment, and let’s build the future of JavaScript together.