See you in 2023!

We had a blast in 2022 and we were super happy to see you all in person again after 3 years. So based on this experience, we’re coming back in 2023 with a two-day event, a format that used to be our way to go in a pre-pandemic world.

Tickets are available on our page. If PayPal is not your preferred payment method, you can also pay by invoice. For more information drop us a line at

Looking forward to seeing you all back in Cluj, on the 18th and 19th of May 2023!

First speakers announced

  • Alena Nikolaeva Product DesignerGitHub
    Alena Nikolaeva
    Alena Nikolaeva Product Designer @ GitHub

    Accessibility-first Frontend Engineer and Product Designer focused on accessible and inclusive experiences on the web.

  • Charlie Gerard Senior Developer AdvocateStripe
    Charlie Gerard
    Charlie Gerard Senior Developer Advocate @ Stripe

    Charlie is a senior developer advocate at Stripe, a Google Developer Expert in Web Technologies and the author of a book about TensorFlow.js. In her spare time she explores the field of human-computer interaction and builds side projects using machine learning, AR/VR, hardware and creative coding. When she’s not coding, she likes to spend time outdoors, read, and try things she’s never done before.

  • Debbie O'Brien Senior Program ManagerMicrosoft
    Debbie O'Brien
    Debbie O'Brien Senior Program Manager @ Microsoft

    Debbie is a Senior Program Manager at Microsoft and has over 10 years experience in Frontend development. She has worked as a Tech Lead and consultant for many important clients with various technologies and often with a strong focus on performance, static sites and testing.

    She has lead teams both in house and remotely as well as giving workshops and training. She has many years of experience as a mentor for online learning platforms, Treehouse and OpenClassrooms as well as the Google Developer Expert program.

    Debbie is a Google Developer Expert in web technologies, GitHub Star Alumni and Cloudinary Media Developer Expert, an Auth0 Ambassador and Nuxt Ambassador and previous Microsoft Most Valuable Professional in developer technologies.

  • Gil Tayar Principal Software EngineerMicrosoft
    Gil Tayar
    Gil Tayar Principal Software Engineer @ Microsoft

    35 years of experience have not dulled the fascination Gil Tayar has with software development. His passion is distributed systems and figuring out how to scale development to big teams. Extreme modularity and testing are the main tools in his toolbelt, using them to combat the code spaghetti monster at companies like Wix, Applitools, and at his current job as software engineer at Microsoft.

    In his private life, he is a dad to two lovely kids, an avid reader of Science Fiction (he counts Samuel Delany, Robert Silverberg, and Robert Heinlein as favorites) and a passionate film buff. (Stanley Kubrick, Lars Von Trier, David Cronenberg, anybody?)

    Unfortunately for him, he hasn’t answered the big question of his life—what’s better, static or dynamic languages? But he’s working on it.

  • Simona Cotin Engineering ManagerGoogle
    Simona Cotin
    Simona Cotin Engineering Manager @ Google

    Simona Cotin is an engineering manager on the Angular team, where she focuses on the core framework and tooling.

  • Tierney Cyren Principal Developer AdvocateTwilio
    Tierney Cyren
    Tierney Cyren Principal Developer Advocate @ Twilio

    Tierney is a Principal Developer Advocate at Twilio, where they spend their time working with various product teams on improving developer experience. In Tierney’s spare time, they enjoy playing video games with friends, watching YouTube, and riding their ebike around Manhattan.

  • Trine Falbe Ethical Innovation & Design consultant
    Trine Falbe
    Trine Falbe Ethical Innovation & Design consultant

    Trine has pioneered the UX world with her thoughts on responsible design and ethical UX. She is an entrepreneur and independent consultant, and her clients come to her for her expertise in responsible innovation, ethical design and UX.

    As the co-author of The Ethical Design Handbook and the founder of the Ethical Design Network, she continues to push and promote ethical design as a way forward for the digital industry.

  • Zach Leatherman Open SourceNetlify
    Zach Leatherman
    Zach Leatherman Open Source @ Netlify

    Zach is a builder for the web with Netlify. He created the Eleventy site generator and is still fixated on web fonts. His public speaking résumé includes talks in eight different countries at events like Jamstack Conf, Beyond Tellerrand, Smashing Conference, CSSConf, and The White House. He is an emeritus of Filament Group, NEJS CONF, and still helps out with NebraskaJS.

Our support crew for 2023

  • Anjana Vakil MC
    Anjana Vakil
    Anjana Vakil MC

    A chronically curious teacher-turned-developer, Anjana is a polyglot software engineer & public speaker who spreads the joy of coding at events worldwide. She`s an alumna of the Recurse Center & Outreachy and an avid karaoke enthusiast.

  • Mădălina Țânțăreanu Sketch Artist
    Mădălina Țânțăreanu
    Mădălina Țânțăreanu Sketch Artist

    Mădălina is a Romanian illustrator living in Berlin, Germany. She’s been working with us since the first edition, creating live sketches for each talk during the event. Check out some of her work from past editions in our special facebook album.

And our awesome ambassadors

An amazing group of people who said yes to the challenge of working with us at making JSHeroes awesome!

  • Andrei Antal Ambassador
    Andrei Antal
    Andrei Antal Ambassador
  • Benedek Gagyi Ambassador
    Benedek Gagyi
    Benedek Gagyi Ambassador
  • Carmen Popoviciu Ambassador
    Carmen Popoviciu
    Carmen Popoviciu Ambassador
  • Ioana Chiorean Ambassador
    Ioana Chiorean
    Ioana Chiorean Ambassador
  • Jeremias Menichelli Ambassador
    Jeremias Menichelli
    Jeremias Menichelli Ambassador

    He developed interest in the web back when dial-up modems were the fastest thing on the planet. Now, he has more than a decade of experience building web products of all kinds and lately working in design systems, performance, education and community.

    He’s currently the Lead Engineer of the Design System team at New Relic.

  • Liran Tal Ambassador
    Liran Tal
    Liran Tal Ambassador
  • Sara Vieira Ambassador
    Sara Vieira
    Sara Vieira Ambassador

10 years of pushing the boundaries

This year we want to shift our attention to the decade of progress in the world of web development. Back in 2013, we went through a period of rethinking practices as frontend development took off and became one of the most crucial disciplines in tech. Frameworks like: React, Angular or Vue, and their ecosystems now enter into their second decade of existence, while web capabilities and standards are increasingly more potent and versatile.

So in 2023, let’s celebrate the past 10 years, reflecting on the evolution of our tools and patterns, with the good and the bad that comes with this rapid evolution.

At JSHeroes, we always ventured outside the pure language ecosystem, so expect to see a variety of talks covering the entire landscape of web development and JavaScript as a universal programming language.

But of course, we will not neglect the human side of things, in our effort to paint a full picture for the development community in 2023.

An open-source community event

JSHeroes is a non-profit community-organized conference, held every year in Cluj, Romania. Our goal is to bring together JS and Web/Frontend development enthusiasts from all over the world for a two day event with: great talks, amazing networking and tons of fun. You bring your ideas and desire to learn, we provide the relaxed atmosphere and the good vibes.

We believe that the community and the open-source models are well suited for our core values: learning, teaching and knowledge sharing. Our mission is to inspire other communities with the concept of open-source events.

We’re publishing all data about this conference, in full transparency. We are also available at any time for inquires and we’re really looking forward to sharing our knowledge about organizing international events. This way, whenever a community wants to start something similar, they can build on our knowledge.

Ecma, JSHeroes mascot wearing a space suit

Event sponsors

These are the companies that support our event financially through the €3,000 standard package.
If you are interested in supporting us, check out our sponsorship brochure for more information.

Media partners

The communities that support our event

Venue and health safety

We are hosting the JSHeroes 2023 conference at the Grand Hotel Italia, Vasile Conta Street number 2, Cluj-Napoca, Romania.

See directions on Google Maps.

The health and safety of our staff, partners, and event participants is our top priority. We are following the latest policies and procedures issued by our national and local health officials on preventing the transmission of COVID-19. Wearing masks is recommended, but not enforced. If you do not have a mask with you, we can provide one at the registration.

Meet the team

  • Ale Retegan
    Ale Retegan
    Ale Retegan Organizer
  • Alex Moldovan
    Alex Moldovan
    Alex Moldovan Organizer

    Alex is one of the founders of JSHeroes and coordinates the effort behind the content of each edition. During the event, he will occasionally pick up the microphone and introduce speakers, but he prefers to keep a watchful eye over the conference, to make sure everything is on time and the event is as smooth as possible.

    He works as a Frontend Engineer at CodeSandbox, where he gets to practice his passion for both sides of the user experience vs developer experience dilemma.

  • Alex Paușan
    Alex Paușan
    Alex Paușan Organizer
  • Alexandra Mînzat
    Alexandra Mînzat
    Alexandra Mînzat Organizer

    Alexandra is a lovely “sunny” person, she’s our admin girl, on board with JSHeroes since 2017.

    Her aim is to make sure everything is done on time, the speakers arrive and leave safely, and urgent matters are attended to during the entire conference week.

  • Ana Cojuhari
    Ana Cojuhari
    Ana Cojuhari Organizer
  • Anamaria Oros
    Anamaria Oros
    Anamaria Oros Organizer
  • Claudia Țicle
    Claudia Țicle
    Claudia Țicle Organizer

    Claudia loves people and has a strong sense of curiosity. Believes that design and technology are changing the world. For 💙JSHeroes💙 she 🌔gravitates towards visual design and content usability.

  • Daniel Mocan
    Daniel Mocan
    Daniel Mocan Organizer

    Daniel mostly focuses on the JSHeroes local meetups, but during the conference gives a helping hand where it is needed. He is usually in charge of the JSHeroes Blood Donation campaign.

    He works as Full Stack JavaScript developer, with React on the frontend and Node on the server side.

  • Eliza Nițoi
    Eliza Nițoi
    Eliza Nițoi Organizer
  • Melania Moldovan
    Melania Moldovan
    Melania Moldovan Organizer
  • Oana Muntean
    Oana Muntean
    Oana Muntean Organizer
  • Oana Șipoș
    Oana Șipoș
    Oana Șipoș Organizer
  • Vlad Ionescu
    Vlad Ionescu
    Vlad Ionescu Organizer

    Vlad has been helping organize the event three years running, being the man behind the scenes. Vlad is also in charge of all social events/parties, so if you want to find out where to get a beer in Cluj, Vlad is your man. You can also come find Vlad if you want to talk about LEGO, basketball or video games.

    He works as a Full-Stack Engineer at FanDuel, where he gets to have fun doing a bit of everything.