Senior Ruby on Rails Engineer (m/f) // Twenty Billion Neurons

November 24, 2017


  • You will work in our data team which uses crowd sourcing to generate large amounts of training data for our deep learning based video understanding technology.
  • You will help operating and scaling our proprietary Ruby-on-Rails based data collection platform.
  • You will enhance our systems by implementing novel user interfaces for video content generation, data labeling and automatic quality control.
  • You will improve our internal and external data infrastructure to provide efficient access to training data for our A.I. Researchers and Engineers.
  • Your work will help define and shape our research agenda at the forefront of Deep Learning and AI.


  • You have completed a Masters in Computer Science or other relevant fields.
  • You have extensive experience in web engineering, system architecture, database design and scalability.
  • You have profound knowledge of Ruby on Rails.
  • You have proven experience in handling large amounts of data.
  • As a plus you have previous experience with crowd sourcing services like Amazon Mechanical Turk.
  • As a plus you have previous experience with neural networks, deep learning and/or pattern recognition, ideally using frameworks like Tensorflow or PyTorch.
  • You have very strong communication skills.
  • You don’t mind getting your hands dirty to solve difficult technical problems.
  • You are passionate about Artificial Intelligence and believe that it is the most transformative technology that currently exists.
  • You think big and want to take part in defining the future of AI and Deep Learning.


  • The opportunity to work in a great engineering-focused startup
  • Work with leading Deep Learning experts
  • A stimulating startup environment with scientific reading groups, the latest and best hardware for Deep Learning, problems at the forefront of DL research, and after-work events
  • Work in a bright office in the heart of Germany’s startup scene in Berlin-Kreuzberg
  • Become part of a friendly, diverse team that values trustworthiness, a pioneer spirit and work-life balance
  • Have an impact: your voice will be heard, your opinion will matter, and your ideas will change things
  • Competitive salary
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Twenty Billion Neurons