Diese Stelle teilen

Ruby Developer IoT (f/m/d)


Berlin, BE, DE

Stellen-ID:  716

At the earliest date possible we are looking for support for our #teamsonnen

At sonnen, we believe clean, affordable, and reliable energy for all is one of the greatest challenges of our time. With over 40,000 sonnenBatterie-systems installed worldwide, sonnen is a proven global leader in intelligent energy management solutions providing greater energy control for residential customers through increased solar self-consumption, reduced peak energy usage and reliable backup power during outages – contributing to a cleaner and more reliable energy future.

sonnen has won several awards for its energy innovations and sonnenBatterie products, including Fast Company’s Top 10 Most Innovative Companies in Energy, the 2017 Zayed Energy Innovation Award, MIT’s Technology Review’s 50 Smartest Companies in 2016, Global Cleantech 100 for 2015-2017, Greentech Media’s 2016 Grid Edge Award for innovation, and Cleantech’s 2015 Company of the Year Award in both Israel and Europe.

Main Responsibilities:

  • Conceptualization and software engineering of the sonnen Internet of Things (IoT) and Virtual Power Plant (VPP) platform
  • Continuous improvement and internationalization of our industry-leading solutions, especially in the areas of:
  • Business functionality, including algorithms for Artificial and Swarm Intelligence
  • Parallelism, redundancy, robustness and reliability
  • Comprehensive unit- and integration tests
  • Graphical user interface and reports


Your profile:

  • Full academic qualification in computer sciences or a degree in comparable studies
  • Very good knowledge in Ruby
  • Proven knowledge in Python
  • Open-mindedness for functional Programming Languages e. g. Elixir, OCaml or Haskell
  • Proven skills in relational and time series databases
  • Proven skills in both, analytical and conceptual thinking
  • Experience with version control systems (e.g. Git) and project management tools for software development (e.g. Git Issues, Jira)
  • Very good understanding of both, English- and German language 

What we offer:

The idyllic Allgäu or the big city of Berlin.– Our two German locations offer the right environment for everyone. And that in a rapidly growing future market with unique career opportunities. You can expect the mentality of a young company in an exciting and international environment.

Take a look at Unsere Benefits to find out what else we offer.

Apply now!

sonnen – energy is yours!

Jobsegment: Ruby on Rails, Developer, Information Technology, Programmer, Project Manager, Technology