Build code, not walls

React Day Berlin

  • 800React fans and lovers
  • 24+Speakers
  • 2Tracks
    (General + Native/Reason)
December 6, 2019
Berlin, Germany
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Are you into React, React Native, GraphQL and hungry to learn from the best?

Welcome to the Web of tomorrow

Take part in the exploration of the React universe! Focusing on in-depth talks, hands-on workshops, and finding new opportunities, React Day Berlin conference provides space for everyone to make friends and develop stellar apps together.

Since 2017 we're running Berlin based React community of people passioned about Open Source and JavaScript engineering. Since then we have also landed 2 React conferences, with last one uniting 800 engineers from Germany and worldwide.
Join or third edition in 2019 to celebrate all things React and meet engineers caring about their craft alike.

Our speakers’ guns are set on stun

Diversity, sharing of ideas, and critical thinking are the core values when it comes to selection of our speakers. Both React’s pros and its rising stars will take over two stages at React Day Berlin.
They’ll shed light on all things puzzling your mind, be it architecture, Design Systems, GraphQL, Reason or other.

Max Stoiber
Max Stoiber
GitHub, Austria
Max is the technical cofounder of, the community platform of the future. He also makes styled-components, react-boilerplate, micro-analytics and a bunch of other open source projects and he co-organises the ReactVienna meetup. He loves to travel, to brew rad coffee and to ski beautiful mountains.
Narendra Shetty
React Advanced
Narendra Shetty
Twilio, UK
Narendra works at Twilio as Senior Software Engineer. He is working on building Twilio Flex which is a programmable UI product. Previously worked at
Elizabet Oliveira
Elizabet Oliveira
Optum, Ireland
Elizabet Oliveira is a UX/UI Designer & Developer from Lisbon currently based in Dublin. She created a project called Cassette Tape, a Google Chrome experiment that explored the web audio API, which she presented at Google I/0 Dublin in 2016. She built and maintains the React-Kawaii library. This library won the award for Fun Side Project of the Year during React OS Awards 2018!
Evan Bacon
React Native
Evan Bacon
Expo, USA
Sometimes Lego Artist, working at Expo (Web, Bluetooth, AR, Gaming, and videos) and React Native (for web) PWAs.
Manjula Dube
Manjula Dube
N26, Germany
Manjula loves contributing to OSS in her free time. She loves teaching and believes it is best way to learn more and more. She is one of the organisers for React India.
Kurtis Kemple
React Native
Kurtis Kemple
Web / Mobile / GraphQL enthusiast. DevRel at Amazon AWS. Co-organizer of NYC GraphQL meetup.
Jessica Leach
Jessica Leach
FutureLearn, UK
"Jessica is a React developer from the UK. She works for FutureLearn, a platform which makes university education accessible to all. She made a transition into development after taking part in Rails Girls Summer of Code and she has also built an open source project, ScienceMotions, which teaches high school-level science with animation.
ReactAcademy, Poland
Teaching React Javascript at React Academy. Cares about open source, made and maintains, custom-react-scripts, and mobx-router. He had the chance to work and experiment with a variety of languages and frameworks.
Tejas Kumar
Tejas Kumar
Contiamo, Germany
Tejas enjoys people, code, and talking about code to people. Having begun coding at age 8, today Tejas travels around the world, encouraging, educating and empowering developers in the web development community.
Alex Lobera
Alex Lobera
React GraphQL Academy, UK
Founder at React GraphQL Academy and LeanJS. Developer and Coach passionate about JavaScript, React and GraphQL. Organizer of the JavaScript London Meetup and other popular meetups in the EU.
Catalin Miron
React Native
Catalin Miron
Skype, Czech Republic
React, React Native, GraphQL and OS enthusiast.


Visit a monument to the future

With the ever-growing JS ecosystem, it’s only appropriate that we are hosting React Day Berlin in Kosmos, the amazing Space Age theatre from the 1960s. It is situated in the hip neighborhood of Friedrichshain full of great restaurants, bars, clubs and little shops, and the building was built with unconventional visionaries in mind.

The city on the edge of tomorrow

Berlin, Germany’s capital, is one of the busiest European tech centers and the best talent gravitates towards the city. With two international airports and modern infrastructure, you don’t even need a hyperdrive to get here.

Brandenburg gate at the sunset

Museum island on Spree river in center Berlin

Berlin skyline with Spree river at sunset

Oberbaum Bridge


Testing Is All About Principles
Alex Lobera
LeanJS & React GraphQL Academy, UK
Should we use react-testing-library or Enzyme? What about snapshot testing? What should be our code coverage? Those are questions we often hear when discussing testing. Those questions are easy to discuss but the answers won’t necessarily make us write more reliable and flexible code. Many developers struggle to write tests 1) quickly and 2) that increase their degree of confidence. Writing good tests requires writing good code. Writing good code that is easy to test requires a good understanding of programming principles and how they apply to the libraries of choice. Discussing principles is harder than discussing tools. In this talk, we’ll discuss the principles that will make developers increase their test confidence when building React apps. I’ll also use those principles to challenge some believes that the audience might have about certain testing libraries or methodologies.


Do you see yourself leading amazing projects? Then you’d better not miss our workshops. Our instructors will help boost up your skills and show you new dimensions of JavaScript problem-solving.

Workshops are happening on December 4 and 5, at SRH Hochschule Berlin.


Would you like to support a growing React community in Berlin and improve the visibility of your tech/employer brand?

We’re no strangers to Berlin’s scene