Looking for Opportunities

If your German is good enough to work in a German-speaking office, hold presentations in German and discuss technical topics with German customers or suppliers, then you can just check the usual German job boards (e.g. Stepstone) and apply directly. Any associated language certificates proving your skills (minimum B1, as A1 and A2 are really only basic beginners level) would be helpful.
As a non-EU-citizen, you will still be at a disadvantage compared to Europeans, but at least you have a chance.
Without good language skills, you are limited to the much smaller and harder to find English job market and your luck depends on having niche skills that are hard to find among Europeans and finding an employer who needs and values them.
There are already many posts on this forum giving good advice about job search in Germany. Perhaps you want to read those, too.