Falling Into Machine Learning - DZone AI

Recently, I rediscovered my passion for mathematics and artificial intelligence, which I used to hate while I was getting my degree in Computer Sciences. Lately, I've been focused on software design, automated testing, microservices, and functional programming. I also love learning new programming languages, so I've been wondering whether to go deeper into Golang, Scala, or Python. But in the end, all of them are tools -- tools for building what kind of things? In my case, my day-to-day job consists in building and maintaining microservices, as a full-stack developer.