Maybe it’s just me, but I can’t think of anything in my job as a software engineer that I’d benefit from memorizing through flash cards. What are people memorizing exactly?
I used Anki for this when I was in a management position that involved meeting with many people, often just once or twice each, across my very large company. It was nice to be able to greet someone by name in the cafeteria six months after our meeting, and ask how such-and-such project was going. I'm sure some people already remember names, faces, and context effortlessly. I'm not one of those people. But I always appreciate when someone remembers me, so I was willing to work to do the same for them.
I stopped doing it once my work universe got a little more stable, and life's daily encounters were themselves the spaced repetition I needed to remember everyone.
What I have used it for:
Memorising how to identify plants and their latin names
Memorising the technical terms for different morphological features of plants so that I could efficiently use a vegetative identification key without constantly flicking to the glossary
Memorising foreign language vocabulary