Hi Andy,
I am a student at Columbia ( MSOR) . I was interested into quantitative finance but now i would like to switch over to Big Data. Ihave completed core courses (stochastic, regression models, intro to FE). I am taking spring courses Machine Learning (R) , Applied Data Science (Python) , Analysis of Algorithms, Intro to Databases
If you don't want to enroll right now but a bit later (maybe in a week), just let me know and I will help.
You should have access to level 1, 2 now and start working on it now.