If you're in the EU/US then probably Lambda School, but since you already know Python may as well try a practical data science course http://www.datasciencecourse.org/lectures/ most of that course is wrangling with APIs and scraping/parsing html to clean and manipulate data, at least it will get you a way to get paid immediately after by going on those terrible freelancer sites (Upwork) and making $100 here and there scraping Amazon and cramming the results into shopify stores or excel spreadsheets. You learn web development from the opposite direction as a human browser. Linear Algebra isn't necessary, the course is self-contained but if you want there's a great course for that done in Python too http://cs.brown.edu/courses/cs053/current/lectures.htm and while this looks like a lot to do, if you have 45mins a day to eat breakfast in front of a screen watching a lecture and another 45mins later to try the homework you'll find you finish these courses in a matter of weeks and can move on to your own experimental hackery building things which is when you really begin to learn, as you figure out things for yourself.

Once you have experience manipulating APIs as a user you can try building your own http://www.cs.bc.edu/~muller/teaching/cs102/s06/lib/pdf/api-... and now you are a jr "backend developer" who can move on to a systems programming course to further understand what you're doing https://scs.hosted.panopto.com/Panopto/Pages/Sessions/List.a...