Like a few of the scientists here that have posted. Degree -> PhD (in genetics) -> postdocs.
Did two postdocs and decided that although I liked academia, I wasn't going to make it to team leader/prof. So moved out to Biotech. Worked for a basket case biotech (3yrs) and a good company (18months). Then moved to a biotech start up 7yrs ago, in which I started up some new businesses that went very well and it got aquired in Sept for a serious amount.
Now running a small lab group with labs in 7 countries / 4 continents. Lots of challenges but lots of fun. Still a science nerd!