I think it would be a good idea to try to build up your confidence, not avoid having to do so by getting a job where you seclude yourself.
I felt the same as you - socially awkward, generally hate 90% of all humans etc... But I got a job at Primark (lol) and found that it actually really helps to expose yourself to new people, who you would never usually talk to. Forcing yourself into awkward situations is sometimes the best way to learn to overcome them. I never imagined that I could confidently talk to customers, but it comes more naturally with time. Plus I'm sure you would also build relations with your co-workers over time, which is never a bad thing.