FAANGs would pass on Donald Knuth, their entire process is made to find devoted soldiers who will memorize every algorithm and sit through 10 interviews and are too naive to think for themselves. Corps want to say "Do this, fast, using what you know" and the candidate says "Right away!". Knuth on the other hand would say "Hold up, there might be a better way, screw the deadline, I'll find it". Corps don't want that.
