Chirping noise on rear brakes

Every time I slow down and come to a full stop, I can hear this chirping noise from the rear. I already had a brake service, the rotors and pads were replaced and all the contacts was lubricated as well. For the first week, I did not hear this noise until lately. I can barely hear when I am parking (forward and backing) and when I start to drive after coming from a full stop. Do you think the calipers have to do something with the chirping noise? I remember a year ago that the dealer replaced the rotors, pads and one caliper because of the same problem. I did not hear the noise for more than a year but now, the said chirping noise is back. Thanks and hoping for your most appreciated reply.