Ask HN: Which clean tech company is hiring (remote) software engineers?

Being very much concerned about the ecological crisis in general and climate change in particular, I would like to turn towards dedicating my career to the attempt of contributing to the prevention of that crisis.

I have a background in agronomy, have been working as a full stack web developer (python + javascript) for six years and have been getting into data science and machine learning lately. I'm based in central Europe.

Which clean tech company is hiring (remote / freelance) software engineers?