Jonas Grau

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Main Info

About Me

Hi! My name is Jonas Grau. I am a software engineer based in Aarhus, Denmark. I am a long time rubyist (10+ years) with a love for backend development, infrastructure and system architecture. I was the CTO of - a two sided marketplace that was acquired by Airbnb in 2019. I am currently working as a freelance software engineer.

Jonas is a multi-talented individual who is a pleasure to work with. His engineering skills are top tier for sure. He is a holistic thinker who can examine a challenge from engineering, DevOps, and most impressively a product management lense. His questions and insights set us on a better path many many times. He has a real passion for his work and will increase the value and impact of any project he is a part of. I'd be privileged to work with Jonas again.

Justin E.

Product Lead at Airbnb
Working Process


  • 2019 - Present

    Software Engineer

  • 2015-2019

    Chief Technology Officer, Software Engineer

  • 2013-2015


    Software Engineer (freelance)

  • 2011-2013


    Scrummaster, Software Engineer

  • 2010-2011


    Software Engineer

Get in Touch


  • Location

    Aarhus, Denmark

  • Email

  • Phone

    +45 26219007