Join the World’s Largest Developers Congress

6 & 7 June | CityCube Berlin

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Topics at the World Congress

Front Line of Emerging Technologies

Constructing Worlds
Building end-to-end Software Solutions

Controlling Complexity
Mastering ecosystems

Applying Disruption
Emerging technologies

Unchaining Engineering
Hardware & Embedded Engineering

Coding Society
Principles, culture & responsibility


Cutting Edge Sessions with Tech Pioneers and Legends

Andreas M. Antonopoulos

Author, Mastering Bitcoin,

Andreas M. Antonopoulos is a best-selling author, speaker, educator, and one of the world’s foremost bitcoin and open blockchain experts. He is known for delivering electric talks that combine economics, psychology, technology, and game theory with current events, personal anecdote, and historical precedent effortlessly transliterating the complex issues of blockchain technology out of the abstract and into the real world.In 2014, Antonopoulos authored the groundbreaking book, Mastering Bitcoin (O’Reilly Media), widely considered to be the best technical guide ever written about the technology. His second book, The Internet of Money, unveiled the “why” of bitcoin—and became a bestseller on Amazon— and led to the wildly successful follow-up The Internet of Money Volume Two. His fourth book, Mastering Ethereum (O’Reilly Media) was published in December of 2018.He is a teaching fellow with the University of Nicosia, serves on the Oversight Committee for the Bitcoin Reference Rate at the Chicago Mercantile Exchange, and has appeared as an expert witness in hearings around the world, including the Australian Senate Banking Committee and the Canadian Senate Commerce, Banking and Finance Committee.To learn more about Andreas and his work, visit his website at

Andreas M. Antonopoulos
Author, Mastering Bitcoin

Leah Culver

Co-founder and CTO, Breaker

Leah Culver
Co-founder and CTO, Breaker

Rasmus Lerdorf

Inventor of PHP,

Rasmus is known for having gotten the PHP project off the ground in 1995 and has contributed to a number of other open source projects over the years. He was an infrastructure architect at Yahoo! for more than 7 years and joined Etsy in 2012. He was born in Greenland, grew up in Denmark and Canada and has a Systems Design engineering degree from the University of Waterloo.

Rasmus Lerdorf
Inventor of PHP

Håkon Wium Lie

Inventor of CSS,

Håkon came to Opera from W3C, where he was responsible for style sheets. In 1994 he invented a small language called Cascading Style Sheets (CSS). CSS describes how web pages are presented — on screens, in print, or read out loud. You can read about it in a book “Cascading Style Sheets: Designing for the Web” he co-authored with Bert Bos. The book is written in HTML and CSS. Håkon is a graduate of the MIT Media Lab where he was part of Walter Bender's Electronic Publishing Group.

Håkon Wium Lie
Inventor of CSS

Brenda Romero

Game Designer, Wizardry, Train, D&D, Def Jam

Brenda is a major figure in the area of game design and is famous for her work on the role-playing series Wizardry, as well as Def Jam: Icon, Playboy: The Mansion, and Dungeons & Dragons: Heroes. She is the Course Director for the University of Limerick and Managing Director and Co-Founder of Romero Games Ltd., a game studio focused on fun.

Brenda Romero
Game Designer, Wizardry, Train, D&D, Def Jam

John Romero

Game Designer & Programmer, Doom, Quake, Wolfenstein 3D

John is an award-winning game designer, level designer, and programmer whose work portfolio includes 130 games, of which 107 have been published commercially. John Romero has co-founded 8 widely successful game companies, including id Software, Gazillion Entertainment, and Loot Drop. He co-owns Loot Drop and Romero Games. He is regarded as one of the world’s best game designers and his products have won over a hundred awards to prove it. Furthermore, John Romero is fully a self-taught designer and programmer, drawing inspiration from early Apple II programmers.

John Romero
Game Designer & Programmer, Doom, Quake, Wolfenstein 3D

Steve Wozniak
at WeAreDevelopers World Congress ’18

Hard to Believe! This is the largest group I’ve ever been in front of. Honored to be here, all the people I’m meeting just remind me of myself!

Meet the speakers


Experience the magic of development

Let’s be honest: attending workshops can be dull. BUT – not here, not with us, not with WeAreDevelopers! We combine expert knowledge with entertainment and industry know-how to deliver the workshops that will allow you to

  • Improve your skills
  • Deep-dive into new realities
  • Learn from the best
  • Rise to new levels!

Join us at WeAreDevelopers and experience bleeding-edge workshops!

Brenda Romero
Game Designer

Loved WeAreDevs! Childcare for attendees, over 30% female speakers, vegan food options, great tech content and most important of all, meeting great people!


We are all equal

We support Diversity!

At WeAreDevelopers, we firmly believe that everyone must be treated equally, irrespective of the background, place of origin, gender, sexual orientation, beliefs and mindset. Our congress is designed in a way that every attendee feels welcome.

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