Tutoring for angular7 nodejs typescript javascript

So i have a application built on angular7 nodejs express typrscript and javascript. Also it uses webpack for code bundling. Very basic login logout application. It uses JWT token for authetication and AOT compiler. I have the application already built. I just need someone to study it and explain me the flow. Basically tutor me. Its not a development but a teaching work. But the person should be very well clear with all the logics of above mentioned technologies. App is pretty simple single page application. Person should be indian so i can understand easily. Should be good with Mean stack.