Thanks for your support and kind words. I tested the resume design with ATS platforms like greenhouse and lever to ensure they are parsed correctly, but their algorithm remains a black box and I am not aware of how it actually works. The resume parser I created is my attempt to create a simple version of the parser. I would think their approach might be something similar but definitely more sophisticated and better tested, but I hope this simple resume parser can help give some ideas on how your resume perform and what is going on behind the scene, e.g. having explained how it works in the article, it might be more clear why some fancier resume designs, such as two columns resume, are not ATS friendly, since it would require more complicated parsing logics and most platforms might not offer it.