TL;DR Are there any interesting JS/ FE teams that have a unique problem space that isn’t directly customer facing? I got contacted by a recruiter yesterday, and I set a time for us to talk. I’m familiar with the team matching process at FB, and I know I can learn more by talking with the recruiter next week, but I don’t want to waste my time or theirs. I like working on productivity tools, and libraries.
Isn't FB the biggest contributor to JS ecosystem? React, React-Native, Redux, Jest, Yarn, Flow just to name a few.