You can only do some occasional work without registering yourself in any special form.
You can check, if you can start as a Freiberufler. It is a bit more lightweight than going with Einzelunternehmen. For example, I am a Freiberufler now working as a consultant / contractor in data engineering and management. I can also potentially sell my product, but I did not check the limitations.
You do not have to close you Einzelunternehmen afaik, if you do not make money, but you are still responsible for sending regular declarations to the Finanzamt.
SEEKING WORK | Berlin, Germany | REMOTE or ONSITE in Berlin
I am an experienced engineering and manager specializing in data engineering. Available for consulting, management, and hands on work.
* I can help your company to architect and build proper data infrastructure, that will be lean and it will support your business needs.
* I can help your data department to figure out priorities, to improve delivery, remove obstacles. I can check your current code base, architecture, help to improve them by mentoring and hands on work. Main languages I work with are Scala and Python.
* I can join your project in the area of Big Data, Distributed systems and help in the following areas: architecture, project leading, tech leading, coding.
* I volunteer to help (non-technical) startups with their data engineering and management questions.
I worked as an engineer and a manager at both startups, and bigger companies (SoundCloud), and I am happy to help you with best practices.
Let's talk! I am friendly and open to communications!
You can check, if you can start as a Freiberufler. It is a bit more lightweight than going with Einzelunternehmen. For example, I am a Freiberufler now working as a consultant / contractor in data engineering and management. I can also potentially sell my product, but I did not check the limitations.
You do not have to close you Einzelunternehmen afaik, if you do not make money, but you are still responsible for sending regular declarations to the Finanzamt.