Test Engineer (m/w/d)

Job Description

Clean and affordable energy for all is one of the greatest challenges of our time. Sonnen has been committed to this mission since 2010 and is now represented in Europe, the USA and Australia with over 1,000 team members globally. In Germany, our offices are located in the beautiful Wildpoldsried (Allgäu) and the vibrating heart of Berlin Kreuzberg.

At sonnen, we are building the energy system of the future. To this end, we are developing new technologies and business models that have not existed before. Whether intelligent power storage, virtual power plants or digital services - we set the trends of a new energy world. That means, among other things, the inexpensive production and storage of renewable energy and the intelligent networking of producers and consumers. sonnen thereby gives people around the world the opportunity to become independent of fossil fuels and conventional energy supplier.

We are growing steadily and are looking for people who want to join us in our vision of clean and affordable energy for all while making a positive impact on climate change.

sonnen is Europe’s largest producer of battery storage solutions for solar energy, with their sonnenBatterie, focused on households and expanding to industry usage. With the company headquarters in Wildpoldsried (Germany), you will work in a distributed team from our office in Cairo.

The “ECU” (Electronic Control Unit) team develops the control unit of each sonnenBatterie. The most important tasks are conception, planning, development and maintenance of the software. The team works according to the agile methods of the SCRUM framework. A team consists of architects, software developers and software testers located in Atlanta (Georgia), Málaga (Spain) and Wildpoldsried (Germany).

As part of the “ECU Testing” team, you will create new test cases for testing the correct behaviour of our sonnenBatteries as well as designing, implementing and updating the testing repository of our sonnenBatteries. In the testing team we also take care of the test automation framework, the documentation and the good state of our systems with new software versions on residential and industrial battery systems.

What you will do to help drive the energy transition

• Developing the test specification, test procedures and test tools for the automated tests of the sonnenBatterie in python.
• Support and further development of the test hardware for automated software tests.
• Direct collaboration with the software developers in the SCRUM team.
• Creation of the test specification, execution of the manual and automated tests as well as reporting.

What you will need on that journey

• Successfully completed studies in the field of electronics, computer science or with comparable experience.
• You strive for a high degree of automation.
• Experience in Python development and/or test automation is desirable.
• Experience with inverters or battery systems
• Ability to work in a team, strong communication skills as well as a goal and solution-oriented way of thinking and working.
• Written and spoken fluency in English and ideally in German.