Frontend Developer

About Lone Rooftop

At Lone Rooftop we are creating the future of intelligent buildings with our next-gen realtime occupancy system called P.I.E. (Position Intelligence Engine). This combines Wifi signals and sensor data to provide users and managers with the most accurate realtime occupancy metrics. Contrary to most other startups, we didn’t start in the garage or basement, but on a rooftop. We started about two years ago with nothing but guts and a bold idea, and have just raised an initial seed round to realise our ambitions. We are now looking for an experienced Frontend Developer to help us grow our platform.

About you

As a Frontend Developer you always strive to create the most elegant and simple (but not simplistic) solutions for your users. You have a natural drive to not only launch a product, but iterate it to success. You’ve created some succesful products, and are now looking for an innovative startup that really pushes the limits of what is traditionally considered possible with software. You're a fast learner and love to work with new technologies, such as

You’ll work with our small but rapidly growing team that includes product developers, data scientists, A.I. experts and software engineers to create applications that run on a host of platforms, from Raspberry Pi to 100” television screens. Our products are used by a variety of user groups, and you’ll play a crucial role in bringing them maximum value.

Who you are

  • 3+ years of experience as a front-end developer in a team
  • Rich, interactive data visualisations are at the heart of our apps, so we expect some experience or affinity with that
  • Great understanding of modern web technologies and tools
  • Great understanding of data visualisation and related technologies
  • Good understanding of UX principles
  • Academic degree in Computer Science or something equivalent
  • We develop our applications with React, so let us know if you have experience in this area

We work in the center of Amsterdam in a beautiful office at Boven de Balie, with an incredible team of nice, fun and talented people. Lunch is provided in the communal area, and we like to have an occasional friday afternoon drinks. We offer a competitive salary, great equity options and the promise of an adventure of a lifetime!

Interested in this position? Please email your short motivation and links to your linkedin, github and stackoverflow profiles to


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