Oh yes, of course. Wages would not be flat, they would be determined by a vote of the employees. In real-world examples, people there for longer, that have more education, that do a more demanding job or have more responsibility have different salaries, up to a certain limit of inequality, of course.

Even Karl Marx didn't want total equality, he thought (rightly) that it was absurd.

Crucially though, the thing is that while wages are not the same, ownership is equal. Most of the wealth would be in shares of the company, not in wages, because wages are needed for consumption and because investment would be much more difficult.