Firstly, you are probably going to need a pdf version of your resume. I’ve tried to get people to accept a website resume but they refuse, and explicitly want pdf. I link to a pdf on my website because of this. Do something similar.

Your notes are very in depth, and organized.

However, I agree with the other commenters about the overall site design and (over)use of JS. The cropping and spacing is overall poor, which only harms the site design further, given the already bad overall organization.

Another thing is icons. These are big and unevenly spaced. Use something like fontawesome (probably not this since it doesn’t have everything, you may end up having to find svg logo’s of the various things yourself) instead. If you are trying to do web development, your portfolio must look cleaner. Like in bootstrap, the place where the icon is, has sharp corners, which extend outward from bootstraps rounded corners.

I do disagree with one of the other commenters on the use of the term “language”. I like it. Especially for a resume, brevity is better. I think overall, you should compress your site down, rather than having so much wasted space.