As maintainer of Sinatra, Konstantin is an Open Source developer by heart. 

Ruby has become his language of choice since 2005. He regularly contributes to different widespread projects, like Rubinius, Rack, Travis, Rails and MRI.

In 2012, Konstantin received the Ruby Hero Award for his outstanding
contributions to the community.

He now currently works full time on Open Source projects at Travis CI.

Presentations by Konstantin Haase:

  • Rails Israel 2014 Conference, Tuesday, November 4, 2014, 08:10

    Abstraction. It's one of the most important tools we as developers have. Getting abstractions right can be empowering. Choosing the wrong abstractions can be devastating to a software project. In this talk, we will have a look at the art of abstraction from many different standpoints: Software development, psychology, biology. And on top of that, it will be about magenta.

  • Rails Israel 2014 Conference, Tuesday, November 4, 2014, 16:00

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