Machine Learning - Just-do-it (hands on) Basics
See also: ML books.
This blog collects some useful materials for non-theory learners like engineers.
ML from scratch (py)
Machine learning, in numpy (so, also scratch, but a lot Neural Nets & RL)
7 Types of Regression Techniques you should know (modern regressions)
Machine Learning Logistics, by Ted Dunning, Ellen Friedman @O'Reilly full text. Keywords: Rendezvous Architecture; Data Science in Production; Model Management from the Front Lines.