HolyJS 2025 Spring

JavaScript conference: from frontend to backend

April 7–8Moscow + ONLINEWTC Congress Center: Krasnopresnenskaya naberezhnaya, 12

50speakers
45talks
10partners
900participants

About conference

HolyJS is an IT conference for anyone who uses JavaScript technologies for frontend and backend. Technical talks about JS development from different angles: web technologies, Node.js, graphics and animations, web3, blockchain...

We gather twice a year to discuss language updates, frameworks, and tools. In a unique JS community atmosphere, with offline and online networking.

The conference is held by JUG Ru Group.

Special guest ⭐️

Dmitry Pobedinsky
Physicist, blogger, science popularizer
- TalkThe Tale Is a Lie, but There's a Hint in It.....

Talk topics

Talks

The time in the program is for your time zone .

Frontend
In total15
- Date: 07.04 / Start: 00:00 – Finish: 00:00
  Talk
  Using New Web Features in Familiar Development
  Alexandr Nefedov
  Yandex
  In Russian
- Date: 07.04 / Start: 00:00 – Finish: 00:00
  Talk
  Taiga UI Kit, or How Flexible Reusable Angular Components are Built
  German Panov
  T-Bank
  In Russian
- Date: 07.04 / Start: 00:00 – Finish: 00:00
  Talk
  Accelerating Web Applications through Page Preloading: Ozon's Experience
  Yury Amelin
  Ozon
  In Russian
- Date: 07.04 / Start: 00:00 – Finish: 00:00
  Talk
  Three.js Shading Language: How the Node System is Organized in Three.js
  Pavel Mazhuga
  Chipsa
  In Russian
- Date: 07.04 / Start: 00:00 – Finish: 00:00
  Talk
  How to Breathe a Second Life into Redux by Linking the State to the React Context
  Ivan Malyugin
  beeline
  In Russian
- Date: 07.04 / Start: 00:00 – Finish: 00:00
  Talk
  Development of an Embedding SDK
  Alexander Polyankin
  Metabase
  In Russian
- Date: 07.04 / Start: 00:00 – Finish: 00:00
  Talk
  Larana vs CSS: How Your Browser Computes Layout
  Eugene Kucheriavyi
  LaranaTech
  In Russian
- Date: 07.04 / Start: 00:00 – Finish: 00:00
  Talk
  Code is Also an Interface
  Alexander Glushchenko
  Yandex
  In Russian
- Date: 08.04 / Start: 00:00 – Finish: 00:00
  Talk
  RxJS: The Great and Terrible. Describing Complex Stack-independent Asynchronous Logic
  Nikolai Pugachev
  SberDevices
  In Russian
- Date: 08.04 / Start: 00:00 – Finish: 00:00
  Talk
  PWA and WebView: How to Make Your Web Application Available Offline
  Aleksey Egorov
  VK
  In Russian
- Date: 08.04 / Start: 00:00 – Finish: 00:00
  Talk
  MarkdownEditor: The Next Step in Working with Text
  Sergey Makhnatkin
  Yandex
  In Russian
- Date: 08.04 / Start: 00:00 – Finish: 00:00
  Talk
  React Native, Development Realities, Problems and Solutions
  Nikita Prokuratov
  Sheverev
  In Russian
- Date: 08.04 / Start: 00:00 – Finish: 00:00
  Talk
  The Modern Streaming Video Player
  Ilya Kalashnikov
  VK
  In Russian
- Date: 08.04 / Start: 00:00 – Finish: 00:00
  Talk
  All Web Animation Technology in One Game
  Andrey Mikhailov
  In Russian
- Date: 08.04 / Start: 00:00 – Finish: 00:00
  Talk
  How to Tame Signals, or a BI System on Graph Reactivity in 2 Months
  Dmitriy Dyn
  Next
  In Russian
Instruments
In total10
- Date: 07.04 / Start: 00:00 – Finish: 00:00
  Talk
  Removing Dead Code in a Project: a Practical Guide
  Victor Khomyakov
  In Russian
- Date: 07.04 / Start: 00:00 – Finish: 00:00
  Talk
  OpenTelemetry in the JavaScript World: How to Tame Observability in Web Applications
  Aleksei Zolotykh
  MyOffice
  In Russian
- Date: 07.04 / Start: 00:00 – Finish: 00:00
  Talk
  Why I Won't Be Writing My Next Library in TypeScript
  Valentin Ulianov
  R7
  In Russian
- Date: 07.04 / Start: 00:00 – Finish: 00:00
  Talk
  Legal Copilot for Working Code and Documents
  Pavel Frankov
  VK
  In Russian
- Date: 08.04 / Start: 00:00 – Finish: 00:00
  Talk
  How to Stop Worrying About Breaking Production? The Experience of Automating QA with Testplane
  Nikolay Markov
  Yandex
  In Russian
- Date: 08.04 / Start: 00:00 – Finish: 00:00
  Talk
  Npm-Security: Vulnerabilities, Cases and Stories
  Anastasiia Egorova
  YouTube-channel "CosyFrontend"
  In Russian
- Date: 08.04 / Start: 00:00 – Finish: 00:00
  Talk
  TypeScript at Maximum: Practical Cases from the Life of a Large Project
  Konstantin Loginovskieh
  Cloud.ru
  In Russian
- Date: 08.04 / Start: 00:00 – Finish: 00:00
  Talk
  Design Automation Using JS: from Adobe to the Web
  Sergey Turulin
  Enicraft
  In Russian
- Date: 08.04 / Start: 00:00 – Finish: 00:00
  Talk
  I Have a Problem: Stability is Lacking (E2Ee-tests). AI Help!
  Pavel Vostrikov
  Kaspersky
  In Russian
- Date: 08.04 / Start: 00:00 – Finish: 00:00
  Talk
  Releasing a RN Application Every Day. No, not CodePush
  Evgeny Prokopyev
  Kuper
  In Russian
Mad Skills
In total6
- Date: 07.04 / Start: 00:00 – Finish: 00:00
  Talk
  Web VR Today
  Anton Miroshnichenko
  Boravto
  In Russian
- Date: 07.04 / Start: 00:00 – Finish: 00:00
  Talk
  Generative design
  Ivan Dianov
  setka.design
  In Russian
- Date: 07.04 / Start: 00:00 – Finish: 00:00
  Talk
  A JavaScript Engineer's Journey into the World of DeFi
  Daniil Shvetsov
  In Russian
- Date: 08.04 / Start: 00:00 – Finish: 00:00
  Talk
  Heroes of Might and Magic III in the Browser. Analysis of Porting Methodology on the Example of Classic Games
  Alexander Guryanov
  GamePix
  In Russian
- Date: 08.04 / Start: 00:00 – Finish: 00:00
  Talk
  Typing eval and new Function: Type-level JavaScript Interpreter with TypeScript
  Sergei Solovev
  T-Bank
  In Russian
- Date: 08.04 / Start: 00:00 – Finish: 00:00
  Talk
  How to Work in a Terrarium: About the Team and You
  Julia Uvarova
  In Russian
Backend
In total3
- Date: 07.04 / Start: 00:00 – Finish: 00:00
  Talk
  Event Sourcing: Key Principles and Implementation on NestJS
  Nikita Ulshin
  T-Bank
  In Russian
- Date: 08.04 / Start: 00:00 – Finish: 00:00
  Talk
  Convenient Prisma Transactions
  Ivan Klimenko
  In Russian
- Date: 08.04 / Start: 00:00 – Finish: 00:00
  Talk
  Love, JS, and Robots
  Vadim Patsev
  Yandex
  In Russian
Architecture
In total3
- Date: 07.04 / Start: 00:00 – Finish: 00:00
  Talk
  Why is Frontend So Hard?
  Sergey Konstantinov
  Bolt
  In Russian
- Date: 08.04 / Start: 00:00 – Finish: 00:00
  Talk
  Creating an Interactive Whiteboard, or Why Reserch is More Important than Code
  Konstantin Lebedev
  VK
  In Russian
- Date: 08.04 / Start: 00:00 – Finish: 00:00
  Workshop
  Utilize Different Architectures Within FSD
  Alexander Morgunov
  Samokat.tech
  In Russian
Off Topic
In total8
- Talk
  Techradar
  Program Committee HolyJS
  In Russian
- Date: 07.04 / Start: 00:00 – Finish: 00:00
  Conversation
  Secret Talk from the HolyJS Program Committee
  Program Committee HolyJS
  In Russian
- Date: 07.04 / Start: 00:00 – Finish: 00:00
  Partner’s talk
  Atom-Moleculer Microservices Development on Node.js
  Eugene Kuznetsov
  Grinatom
  In Russian
- Date: 07.04 / Start: 00:00 – Finish: 00:00
  Partner’s talk
  Generating Unit Tests with LLM: as if the Dishes Wash Themselves
  Daniel Kobylkin
  VK / Odnoklassniki
  Timofey Timoshevsky
  VK / Odnoklassniki
  In Russian
- Date: 07.04 / Start: 00:00 – Finish: 00:00
  Conversation
  Open Mic
  Timur Gafiulin
  ecom.tech
  In Russian
- Date: 07.04 / Start: 00:00 – Finish: 00:00
  Game
  Code in the Dark
  Program Committee HolyJS
  In Russian
- Date: 08.04 / Start: 00:00 – Finish: 00:00
  Talk
  The Tale Is a Lie, but There's a Hint in It.....
  Dmitry Pobedinsky
  In Russian
- Date: 08.04 / Start: 00:00 – Finish: 00:00
  Conversation
  Closing of HolyJS 2025 Spring Conference
  Program Committee HolyJS
  In Russian

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HolyJS conference news

Updates, promo codes and featured content.
Short and to the point.

Speakers

Ivan Klimenko
Pavel Vostrikov
Kaspersky
Nikita Prokuratov
Sheverev
Andrey Mikhailov
Aleksey Egorov
VK
Konstantin Loginovskieh
Cloud.ru
Julia Uvarova
Evgeny Prokopyev
Kuper
Sergei Solovev
T-Bank
Konstantin Lebedev
VK
Nikolay Markov
Yandex
Dmitriy Dyn
Next
Eugene Kucheriavyi
LaranaTech
Nikolai Pugachev
SberDevices
Daniil Shvetsov
Valentin Ulianov
R7
Yury Amelin
Ozon
Sergey Turulin
Enicraft
Vadim Patsev
Yandex
Alexander Guryanov
GamePix
Anton Miroshnichenko
Boravto
Pavel Mazhuga
Chipsa
Nikita Ulshin
T-Bank
Alexander Polyankin
Metabase
Alexandr Nefedov
Yandex
Sergey Makhnatkin
Yandex
Anastasiia Egorova
YouTube-channel "CosyFrontend"
Alexander Morgunov
Samokat.tech
German Panov
T-Bank
Alexander Glushchenko
Yandex
Ilya Kalashnikov
VK
Ivan Malyugin
beeline
Pavel Frankov
VK
Ivan Dianov
setka.design
Aleksei Zolotykh
MyOffice
Victor Khomyakov
Sergey Konstantinov
Bolt
Daniel Kobylkin
VK / Odnoklassniki
Timofey Timoshevsky
VK / Odnoklassniki
Eugene Kuznetsov
Grinatom

Experts

Masters of Ceremonies

Program Committee HolyJS
Timur Gafiulin
ecom.tech

Media

Blog at Habr.com
We publish transcripts of talks, interviews, and authors’ articles.
A rough Morning with HolyJS
HolyJS conference podcast.
Materials
Look at how past conferences have been held.
Selected Talks
Talks from different years caused the greatest response from the participants.

Conference features

The content selected by the experts
The content is included in the program only after it has been checked by the program committee, which has experts with wide experience in JS development.
4K video
So that you can see each character on the slides.
Support
Our support team will reply to you very soon and will not leave you alone.
Discussions
You may chat with speakers and experts right after the talk. Both online and offline.
Change of scene
Offline is back. This is a chance to change the scene, listen to live talks, chat with your colleagues, and just enjoy your time at the afterparty offline.
TechTalks
There is lots of technical content with a little bit of non-technical content. Our conferences will help you find your way in the industry by teaching you about trends, tools, approaches, and global language and platform updates.

Partners

Become a partner

We would not be able to hold HolyJS on a regular basis without the tremendous support of our partners. Our conference is growing and evolving thanks to their efforts.

Leave a request

HolyJS 2025 Spring

About conference

Special guest ⭐️

Talk topics

Talks

Frontend

Instruments

Mad Skills

Backend

Architecture

Off Topic

Do you want to perform but have doubts?

Subscribe to our newsletter

Speakers

Experts