Javascript

JS Poland

International JavaScript Conference. 1 day, 1 track, 25 speakers, 1000+ developers. The world’s best JavaScript experts inspire you to bring your JavaScript projects to the next level. You will meet and mingle with peers, world renowned speakers, technology fans, published authors and Open Source core committers.

Visit the official siteRegisterSponsorship open
29Speakers
11Sponsors
9On the bill · sessions
33Companies · in total
§I

Speakers

Programmed at JS, in alphabetical order.
Alain Chautard
GDE, Expert Web Consultant, Trainer, Mentor · Angular Training
Alex Okrushko
Senior Software Engineer · Snowflake
Damian Płaza
Senior Software Engineer / Power Grid Gdańsk R&D Manager · Volue/Bottega IT Minds
Daniel Sogl
Head of AI Engineering & Developer Producitivity · SHI GmbH
Daria Poliakova
Front-end developer · Conscensia
Dariusz Kalbarczyk
Google Developer Expert, Author, Podcaster · NG/JS/AI POLAND
Dr. Markus Nissl
CEO · datAInsights GmbH
Dr. Philippe De Ryck
Security Expert, Founder, GDE, Pragmatic Web Security
Eugene Fidelin
Engineering Manager & Frontend SME · eBay
Frizzarin Nicolas
Senior Staff Engineer, GDE · SFEIR
Ihor Maistrenko
Angular / .NET Developer / Team Lead · Conscensia
Jakub Andrzejewski
Senior Fullstack Developer & Advocate, GDE · Monterail
Jemima Abu
Front End Developer, GDE, Microsoft MVP · CAIS
Julian Jandl
Engineering Manager · push-based.io
Julia Rapczynska
Full Stack Software Developer · Push-Based
Julien Huang
Nuxt Core Team · Leetchi
Kasper Kulikowski
Senior Developer Relations Engineer · Google
Łukasz Jancewicz
Manfred Steyer
GDE for Angular · softwarearchitekt.at
Markus Ingvarsson
Back End Developer · Podme
Matthew Podwysocki
Staff Engineer · Mapbox
Michael Hladky
CEO · push-based.io
§II

Sponsors

The houses behind the program. Tiers as disclosed.
JetBrainsPlatinum
ConscensiaGold
4SkillsSpecial
7NngGirls Sponsor
Brave CoursesSpecial
GDGSpecial
GoogleSpecial
Konopie Baby JagiFeatured Sponsor
mCoachingSpecial
No Fluff JobsSpecial
PacktSpecial
§III

Agenda

Selected from 9 sessions on the bill.
  • Nov 18, 2026

    Deterministic code meets probabilistic agents: Testing and evaluating WebMCP Tools

  • Nov 18, 2026

    Inside the JavaScript Heap: Finding and Fixing Memory Leaks

  • Nov 18, 2026

    Legacy Strikes Back. How to Pay Off Technical Debt Without Slowing Down Development

  • Nov 18, 2026

    Node.js Profiling: A Deep Dive

  • Nov 18, 2026

    Running Storybook inside your Vite app

  • Nov 18, 2026

    Stop Teaching Agents to Click: WebMCP and the Agent-Native Web

  • Nov 18, 2026

    The 60 FPS Slap: Real-Time Bass DSP & Shaders in JavaScript

  • Nov 18, 2026

    What’s Making Your JavaScript Slow? A DevTools Profiling Deep Dive

  • Nov 18, 2026

    When Microfrontends Go Wrong: Lessons from the Frontline

Intermission
Part the Second · For the Buyer

What does it mean when 33 companies show up, and 2 bet on three roles at once?

33 companies. two are betting more than once.

The numbers below are derived from the speakers, sponsors, and exhibitors on this page, cross-referenced into one ledger. They are the only thing here that 10times.com cannot tell you.

Who's in the room
2All threespeak · spons · exh
9Sponsoringsponsor only
22Companies Speakingspeaker only

The Triple-Threat

Conscensia·Google

Speakers by seniority

14% of the speakers carry senior titles: C-suite, Founder, VP, or Director-level.

  • C-suite27%
  • Founder / Owner13%
  • Director / Head of13%
  • Manager / Lead828%
  • Engineer · IC1241%
  • Advisor / Investor13%
  • Other roles414%

Of 29 on the bill · classified by free-text title

Most-represented companies
  1. 01ConscensiaSp·G2V
  2. 02GoogleSp·S1V
  3. 034SkillsSp·S
  4. 047NSp·N
  5. 05Brave CoursesSp·S
  6. 06GDGSp·S
  7. 07JetBrainsSp·P
  8. 08Konopie Baby JagiSp·F
  9. 09mCoachingSp·S
  10. 10No Fluff JobsSp·S
  11. 11PacktSp·S
  12. 12push-based.io2V
  13. 13Angular Training1V
  14. 14Atlantis S.R.L.1V
Sponsors by tier
platinum1
9% of 11
gold1
9% of 11
featured sponsor1
9% of 11
nggirls sponsor1
9% of 11
special7
64% of 11
At peer events but not here

These companies sponsored two or more peer events recently, but aren't on this program. For an organizer, that's a list of warm prospects.

Related events · by shared sponsors