There are differences, though. The hydrolysis of amides is a slower reaction than the hydrolysis of esters, so more vigorous conditions are used. There is some good news here, since proteins, which are held together by amide bonds, need to be pretty stable molecules.
Amide hydrolysis is catalyzed by either strong acids or strong bases.
Polymers can be made from alcohols and carboxylic acids by way of the esterification reaction. So a polymer can be made from a molecule which contains two carboxylic acid groups and another molecule which contains two alcohol groups. If we imagine hydrolysis of each of the ester functional groups, we can see what dialcohol and diacid it is made from. Again, by imagining a hydroysis reaction, we can figure out the structures of the diacid and diamine. This example is Nylon 66, so called because there are 6 carbons in the acid portion and six carbons in the amine portion.