I'm married, but even for me, trying to get beyond the acquaintance phase of a relationship with people is hard.
In this regard Eugene sounds exactly like my native Seattle.
I meet people while volunteering or out and about running errands or at the bookstore or library.
People are very nice and talkative here, and you can carry on some interesting conversations with total strangers at the right moment, relaxing in a coffee shop or waiting for your food or whatever... I'm a transplant here, and we also lived in CA and WA each for one year. You get close with people real quick, and your neighbors become like family.
With regards to moving here for a job, I did the same and I love many things about this town.