For me, any job can be sexy if the man doing it is sexy himself! Not being flipant here, was wracking my brain trying to really think about it and discovered that it always came down to the jobs being done by men I find wicked sexy. Anything Redcell does is seriously sexy (especially when it involves brains, weapons and courage). I have a hot friend who is currently building a house and I find it incredibly sexy watching him work with his hands and powertools and creating something truly beautiful. Used to data a doctor and hey let's face it, the brains, knowledge and ability to truly save a life is sexy. Of course, I also think firemen are just soooo sexy - risking their lives for others like it was nothing - Mmmmm! My current BF's job (before he just retired that is) was sexy - Colonel in the airforce - was a test pilot at one point and thinking of him doing crazy shit with jets is hot! I also find it sexy watching others follow his every command and showing a level of respect that blows my mind. The power in that is sexy but even sexier cause he cared so much for those that worked for him. I find anyone who makes sacrifices and serves in the military to aid in the defense of my country hugely sexy.
Those that work in desk jobs - sorry, just not all that sexy to me even if they are brainiacs.