Great thread - great to see the variety, and indicative of amateur astronomy and its many facets as a hobby.
To add to the variety, I am a groundwater hydrologist - specialising in numerical groundwater modelling. I used to work for the State government, but a few years ago I jumped ship to the private sector where I now work for a small groundwater consulting firm. The move was the best thing I could have done - gone from water resource planning activities to much more interesting and challenging problems - usually involving mines. The job really suits my INTP personality type, and although stressful, I can't see myself doing anything else.
My undergrad was in Environmental Engineering and my postgrad was a Masters in computational mathematics. Just before leaving the government I also did a Dip of Business (they paid
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