Even with an applicant profile that matches the job description, you won't get any reaction from Mosaik. I've seen it twice before. If you ask via mail you will get a snappy reaction. Very unprofessional!
Unfortunately, I cannot evaluate whether something is going well in the company, as I have never received any feedback on my applications.
I have now applied several times for different positions, but I have never received any feedback.
Even in case of multiple requests, no answer to the application. If people are their capital, that's the least you can do.