I've also just started a blog series for getting started with algorithmic trading in NodeJS for complete beginners: https://grizzlybulls.com/blog/building-an-algorithmic-tradin.... A lot of folks would raise an eyebrow at the thought of using NodeJS for algotrading, but I've found it to be a great fit for my non-HFT, more swing-trading style, and I've used it successfully in production for over 3 years.