HolyJS, a large Russian conference for JavaScript developers, will take place on April 10-11, 2020 in St. Petersburg. It should not be confused with numerous frontend conferences: the talks will be not only about the frontend, but also the backend, the desktop, and work with hardware.

JavaScript is the most popular programming language in the world (according to GitHub and RedMonk), but there was no Russian JS conference before. We have changed it: HolyJS brings under one roof more than 1000 JS developers ready to discuss technical problems with JavaScript experts from all around the world.

Submit a talk

HolyJS 2020 Piter, April 10-11, St. Petersburg

Visit the most beautiful city in Russia (and it's not an exaggeration!) as a speaker of our conference.

St. Petersburg has got the "World's Leading Cultural City Destination 2016" award and has become one of the top 25 cities in the world for visiting in 2017 (according to TripAdvisor). This means it's not only internationally recognized, but also open and safe for anyone (regardless of gender, race, religion, etc.).

If your talk gets accepted to the program, we’ll reimburse all your travel experiences. We'll transfer you to the conference venue and organize a cultural program, which is not limited to the conference itself and the restaurant. We also offer you a guiding tour to get you acquainted with the city and its culture while hanging out with other speakers.

Are you with us?


Architecture of modern JS applications.
Client Side: best practices, performance, state management.
Node.js: best practices, performance, state management.
JS engines.
Optimizing JS applications.
Customers-server synchronization, client-side data storage.
Working with graphics and VR.
UI development.
Mobile apps.
Desktop apps.
Web API.
JS on devices, IoT.
Security in JS.
Tools' development with JS.
JS and the ECMAScript specification.
TypeScript, ClojureScript, Elm, Dart, etc.
Application testing.
Build tools.
JS developer workflow.
Computer science.
And other interesting topics.


Speakers of the previous conferences, for the most part, need no introduction. And among them there is always a place for new stars!

Vitaly FriedmanSmashing Magazine
Douglas CrockfordPayPal
Lea VerouCSAIL at MIT
Denis RadinLiberty Global
Martin SplittGoogle
Axel Rauschmayeresnextnews
Roman Dvornovavito
Anjana VakilÜberResearch
Denys MishunovDigital Garden AS
Claudia HernándezDailymotion
Ryan Dahl
Vyacheslav EgorovGoogle
Isa SilveiraWork&Co
Lyza Danger Gardnerhypothes.is
Andrew Sitnikevil martians
Sebastien ChopinORION
Ilya KlymovWookieeLabs
Michel Weststratemichel.codes
Max SalnikovForgeRock
David KhourshidMicrosoft
Stanimira VlaevaProgress Software
Alexey KozyatinskyNetflix
Basarat Ali SyedAustralia Post
Ruben BridgewaterFreelance Software Architect


Our Program Committee will impartially review your application, regardless of whether you were previously at conferences, your skin color, sex, race, orientation, and favorite IDE.

0Submitting a talk
1Approval of the talk
with the Program Committee
at the conference
4Cultural activities/ Preparty
with colleagues
7Lots of memories
8Preparation of
а new talk

Perhaps it's time to be a part of this team?

Submit a talk


The professional conference covers a really large part of the community. Let's count: more than 1000 professionals on the site, no less than 100 online broadcasts, including the corporate ones which covers the entire departments. And that's just the beginning. Videos and articles in professional communities also make it possible to achieve a prolonged effect for many months even after the end of the conference. This means that your knowledge and skills will be in demand by as many professionals in your area as possible.

And remember two rules:

Senior Developer
Middle Developer
Team Lead


Explore the cultural capital of Russia
Enlarge your recognition in the developer community all around the world
Share your experience with colleagues and increase your value in the market
Extremely improve your presentation skills with the support of the Program Committee
Extend your portfolio using our photos and videos of great quality

Join us now!