I've spent the last (almost) 2 years intensely studying javascript and MERN stack plus sql etc. I know I'm on the right track as I have started working as a TA in a full-stack bootcamp at a major university in my region (which required successful technical and knowledge tests). I want to start seeking a full time developer position, im hoping working on a large project/app/website/feature dev team (there are several such places near me, though I only hold a Bachelor's of Arts, and 2 low level certs from freecodecamp. What would you recommend that I build ( solo or as a team with other ppl interested - like other tas or bootcamp students) to demonstrate:

1 - my knowledge of mern stack, js, algorithms, web development, programming concepts, apis and what not 2 - my abilities to professionally manage time and projects, and up-to-date

A huge project that will take months and maybe have many contributors, but something that I can use to prove my skills (so-to-speak) to employers?