Just got back from a meeting where we discussed on-disk data structures, in-memory data structures, and design of a query language for a time-series database wi

Just got back from a meeting where we discussed on-disk data structures, in-memory data structures, and design of a query language for a time-series database with the goal of achieving <1s response time for queries on TBs of data. For comparison I worked on a project some time ago (arriving well after the original developers) that tried to store an event log in a relational database and ran into severe performance problems. Knowing a bit of theory sure helps avoid a lot of mistakes, and it's super interesting as well. There's lots of good stuff in the front-end and web dev space as well. I know enough about UX to understand there is a lot of depth there. If you understand functional programming you'll go a long way with React and friends (and perhaps be able to innovate in this area as well.) Not all of this is in the typical CS curriculum but that doesn't invalidate the usefulness of what is.