That said: I am NOT at all interested in identifying myself in social situations by my job. When someone asks what I do, I respond that I work in tech. I am not interested in giving more details nor talking in-depth about what I do to others I have just met.
Why? Because that's not at all what makes me...me. I am far more interested in what I do outside of work (reading...a lot, listening to music, spending as much time w/my family as possible, traveling, spending time at my lake home, etc). That is what I work to do; enjoy my life.
I realize this is an uncommon opinion, but I find it SO VERY ODD that folks are OBSESSED about their jobs and make it a central point of their existence to those outside of their specific industry. I do NOT care what someone does for their day-to-day; it's unlikely it will have any impact on me or my friendship with them. I want to know what they bring to the table in our current or potential social situation and the fact that they make PowerPoint presentations for whomever to look at, ask a few questions answered in the presentation's appendix, and never think about again doesn't do anything to further any of that.