Swastik Gowda

I think you should first choose either a database or server side programming language then you can streamline your other choices based on that, but I think if you are building a big project then going with django + firebase / mongodb would be a good choice else choose laravel + firebase.

While I am not a big fan of kotlin but I guess for your use-case it would be better, since you need only an android app and learning es6 , react & react native will definitely be a time consuming task since it has a steep learning curve and has a lot to learn, but it is more flexible and useful than kotlin though.

Doing User authentication (oauth) and session management by ourself is kind a challenging, so if possible use firebase itself since it provides these features out of the box.

If it was me, then I would go with node.js because it has huge a number of packages,community,support & good dev experience and learning curve is also not that steep, if coupled with express.js, its gonna be efficient and fast in serving web requests, and if we adopt good design patterns and follow best practices, I guess it will be easy to maintain it as well, and for storing resumes, video rec etc.., I would use assest management tools like cloudinary etc.., rather than storing in db, coz Its gonna be much more faster this way.

Python is definitely not useless, It has a ton of usecases, with a huge community behind it, but not that performant and consumes lots of resources, I don't think you should abandon it, and PWA is kind a in its early stage, so I doubt that there will be any language better than js for developing it any time soon, so I guess there are no alternatives, but I guess you will like js/ts if you spend a little more time playing with it, and the same goes for wasm it is also in its early stage, and i guess web assembly and rust will be used a lot for that, and lets say you have built a frontend web app , now with the help of python + django or flask you can write server code, and learn a little bit about databases, then bravo you are a full stack dev.