Job hoppers trying for staff+ roles at FAANGs or VC-backed mid-stage startups. Also, to add to your comment about CAP. knowing CAP (consistency, availability,

Job hoppers trying for staff+ roles at FAANGs or VC-backed mid-stage startups. Also, to add to your comment about CAP. knowing CAP (consistency, availability, partition tolerance, choose two) can be useful when choosing which database to use for a production system, I.e. can you get away with a fancy distributed gossip database or do you need the robustness of a rdbms. 99.9% of the time a RDBMS is fine, but if you're vying for a senior staff role, you need to sound like you can talk about the 0.01% of the time where Riak or something like that makes sense as a primary data store. That's why this guide mentions it.