Is it possible to reach the middle level in development without experience in the office?

Question

Freelance

I have repeatedly seen the opinion that "you are June until you have worked in the office." In principle, I can understand the logic, but I would like to understand, is everything so critical?
That is, if you learn theory, practice it on pet projects/freelance/codewars, etc., is that enough to be considered middle?
Speaking in specifics, using my stack as an example:
- excellent knowledge of vanilla js
- understanding of the principles of interaction between front and back
- it follows from the previous two - understanding of node.js, specific knowledge on it is still at the level of building a simple REST api without authorization checks, but I'm all the same front, so I'm not in a hurry to study it
- typescript, medium
- of course html, css, bootstrap, sass (medium)
- angular2+ - mediocre. I know the base (data binding, router, services, directives, etc.), I practiced a lot, I know more advanced things, for example, onpush changedetection, but either I haven’t practiced much yet, or haven’t had time yet.
gulp and webpack. The first set up himself, the second is not yet, but got acquainted.
- TDD. I know how to write unit tests with and without a framework. Little practice (quickly fixable).
- git. So far, simple commit, push, pool. I know how to commit and shoot not only to the master :)
In addition to the stack itself, I studied big O notation, and I am currently studying SOLID, OOP design patterns, algorithms.
Experience of working in a team with a back is available. There are no front-enders with a team of colleagues yet.
Should I position myself as a middle when applying for a job or without experience in the office are you categorically a junior?
If the second, what should you pull up first of all if you went to the office as a junior? So, what is the key to overstepping this barrier in office work - if it's teamwork, is it understanding git, at a higher level, or maybe some soft skills?

Answer 1

Is it possible to reach the middle level in development without experience in the office?

One out of a hundred will succeed and will take ten times more time than it would take development in the office to the same level.
You can try. You just need to understand that if you position yourself as a middle, then they will ask as if from a middle.

Answer 2

You can position yourself however you like. The market will put an end to this issue. You go to social services, they will appreciate you there, moreover, in different ways

Answer 3

Working at home or somewhere where no one fumbles except you leads to a slowdown in development, relaxation. I think even a jun should not be a jun without at least some experience of working in a team. Working in a team has its own specifics (and a bunch of its minuses), and if there is no experience, how to deal with it, then how can you immediately go to the foreign ministries?
In relation to your situation - you know the language, but just working in a company you will feel what techniques are needed in this area and which are not, learn how to arrange and optimize work so that your colleagues do not have to deal with it later. This is ideal. But in fact...