Technical Writer (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.

What you will do to help drive energy transition

• Create and update a wide range of technical documents for all sonnen products — including operating manuals, installation guides, service instructions, certificates, and declarations
• Develop and maintain internal mounting guides for plug-and-play energy storage systems and accessory products
• Design sonnen-specific product labels, including the layout and related specifications to communicate installation details or product safety warnings (e.g. for certification purposes)
• Create and update product inserts (printed materials included with the device) that inform installers about relevant updates — for example, the use of alternative components due to availability
• Prepare manufacturer declarations, such as CE conformity statements, referencing applicable standards and norms

What you will need for that journey

• You are confident in working with technical software tools such as SCHEMA ST4 (or other structured content management systems), Adobe InDesign and SAP
• You have strong technical writing and layout skills, with a keen eye for detail
• You work independently, manage documentation projects reliably, and collaborate well across departments
• You communicate clearly in English (German is a plus)