Left to work in equities after 5 years of software dev. I find the work much more stimulating mentally, as you learn about the world and how business works, not just abstractions. Luckily there is still a lot of use from my old skill set, and I suspect there will be more as time goes on.
Can I ask how you got started in the field? I actually began my career in Accounting (my undergrad is in it), and still find the world of finance pretty interesting. Somewhere along the line I ended up in Engineering and have been a Software Dev ever since. But I do still think about getting into trading at some point, but not sure how to transition.
I would have properly applied for every job that appeared in the country over that time.
Surprisingly a lot of people enter the field laterally, not everyone goes through the investment banking angle.