The title mentioning “Brave” seems to be a red herring: there’s someone in the comments talking about Braze, though it looks like a typo. Similarly the “Who’s hiring” posts do actually have job listings for Braze, but you have to click through the More link at the bottom to find them. (Because I load HN directly from a data dump, the search doesn’t know about the pagination.)

I think the main problem here is that my index is relatively small: it has only (!) 30 million pages, and it looks like Braze just isn’t popular enough for me to have run into it with the right keywords yet.