Doing a part time masters was a huge mistake I made in my early 20s. Sure, I learned a lot but I lost a lot of time and picked up a few grey hairs. It really took a toll on my family and social life. It has not benefited my career at all, which is why I tell people to avoid this route unless they have a non-comp Sci bachelors and even then to consider doing a second bachelors instead.
Despite interviewing a great deal since then and getting a few different positions no one in industry has ever really cared about it, except to call my background 'academic' in a vaugely negative manner at some smaller shops. I make very comparable salary to my peers who just have their bachelors. I usually recommend people not to go this route unless they just want to learn for the sake of learning... which I did, but I thought it would help career wise too and it really hasnt. Honestly I think there are a number of people in startups who will actively hold an MS against you, seeing it as a sign of failure. I have outright been told when interviewing that it is being held against me, because successful people don't need one.