Personally, I’ve always loved the process of taking things apart, understanding how they work and putting them back together. I turned that into a degree in mechanical engineering and eventually a career in power plant operations. Couldn’t be happier with my work than I currently am. Its WORK but I don’t hate it and I feel like I’m doing something important.
A strange combination of circumstances. I originally wanted to do maths research or, failing that, be a maths teacher.
After a stint of research, and given how long getting to a tenured position would have been (with all the sacrifices that demands by chaining one or two years contracts all over the place, and with no guarantee of success), I decided to stop applying after my last contract came to an end.
Meanwhile, I met my wife who lived abroad where my teaching qualification did not hold, so I took a leap of faith and when my contract ended I left my country to move in with her and figured I’d find something there eventually.
At the time, the standard pipeline for a maths PhD looking for work in the industry was to do “data science” so I learned a bit of deep learning (this was pre chatGPT) but very quickly decided I did not want to contribute to that. I decided to start looking for other stuff, loosely related to my degree (and had a shitty admin job for a month).
I luckily found soon after quite a niche job as a software engineer where understanding maths was really needed (working on the geometric kernel of a CAD program) and thus managed to get my foot in the tech door and learn “enterprise” coding there. I moved on from that particular job but remain in something very close to that.