[OJFord]

What do you work on, and how much prior domain experience did you have? (And if you did have some, was it necessary?)

I currently work for an agtech company, the domain-specific stuff is just context for the generic numbers and equations, or a reason to choose one over the other, to the extent that I need it it suffices to have a colleague who's a domain (but not software) expert.

You might say that's the other extreme, aerospace is different, but I don't really see that it is. I don't think anybody's claiming SpaceX doesn't have or need aerospace engineers, but once they've, idk, specified a formula for a parabola representing a flight path say (yes, I don't know what I'm talking about!) then the domain doesn't (needn't) matter to the software engineer implementing it.

[colordrops]

Flight paths and what not are crafted by GNC engineers who hand them over to software engineers to implement. Really the only domain expertise needed in software is for space-grade fault tolerance, which is a couple people per vehicle.