I switched from System Engineer to Software Developer when I was 40. I need to make another jump now when I'm 50. You should be fine when you're 43. Just tr

I switched from System Engineer to Software Developer when I was 40. I need to make another jump now when I'm 50. You should be fine when you're 43. Just try to keep a lid on the imposter syndrome for a few years. Try not to be inflexible as well. And change up little things that you do from time to time. Try programming in an IDE if you've never done it. Try a new programming language. Change the shell you use. Whatever. Don't necessarily hop on the latest greatest trends on HN headlines since that can be exhausting, but there's lots of well worn technologies out there to stretch yourself with.