I’ll start of with a quote: “[Hal Varian] keep saying that the sexy job in the next ten years will be statisticians. And I’m not kidding.”. Hal Varian is Google’s chief economist. He may be right since the data in the world is growing exponentially which make the good job to take this data in account and keep track of it. It doesn’t mean that the person will just be keeping track of the size of the data, it also means that he will be working with this data, which can be photos, statistics, bank information and etc. I personally have never used Waze, since we have an alternative back in Russia (2GIS). I don’t personally know how it work (could be that they are just taking an existing database of traffic and uploads it to the app.