There are many things that can make you breaks squeak.
They are: dust, water/soaps, worn calipers, warped discs or also wheel bearings car cause a whooshing light scraping noise.
You paid a shop to fix an issue with your car. If you paid money and still are having an issue or it caused a new issue, that is the first place I would go for an answer.
It may also be as simple as dirt from a muddy or dusty road in your brakes causing the noise.
It could also be a coating applied to the new brakes that needs to wear off from normal use to silence the grinding (less common)
I would try washing the rims/wheels/brakes and that would remove any dust. Then if the car is still making noise but is braking like normal it may be a caliper sticking. It is hard to say but I would get a second opinion from a shop you or a friend trusts.