JetBrains Academy

JetBrains Academy runs programming courses directly inside their IDEs (IntelliJ, PyCharm, others), letting you write and test code without switching windows. The data science tracks cover ML fundamentals, math for ML, and practical AI applications. Each lesson includes integrated coding tasks you solve in real time.

Best for programmers who prefer learning by coding rather than watching videos or reading theory. The in-IDE approach feels natural if you're already using JetBrains products, and the curriculum progresses from basics to applied projects.