Pros
At os4w there are very flat hierarchies, you really have the chance to get involved. You also learn a lot of new things. The colleagues are very helpful and at eye level. In addition, you have the opportunity to work 100% remotely and as a freelancer you have a relatively secure income. I also like the internationality and that so much value is placed on diversity and equality. This results in a positive image.
Cons
The salaries could be better. Considering that freelancers do not get paid for vacation and sick days and have to take care of health insurance and social benefits themselves, the pay tends to be too low.