Just a note -- HN usually does a pretty decent job of catching reposts/duplicates when you submit the story... I've tried to submit stuff sometimes and been notified that it's been posted already.
There's a whole bunch of space system support software that isn't hard scientific code (which is handled by a totally different team), but rather for specific management-related tasks. This code is written in all the web technologies and frameworks one would expect.
Edit: I'm wondering about the downvotes, since I've actually written such software.