To help you in your data science career, I’ve prepared the main Python concepts tested in the data science interview.

Not necessarily for the data-science and machine-learning communities built around Python extensions like NumPy and SciPy, but as a general programming language.

Java has a lot going for it, but it's not the top language for data science. Java professionals may want to familiarize themselves with Python or R for data science workflows.

With Google data science agent, one scientist estimated that their data processing time dropped from 1 week to five minutes.