Hello @Bromyy! The questions you pose are interesting and there isn’t really a “catch all” answer to them, every video game studio is different, they have unique requirements or expectations or talents to look for, that said I’ll try my best to give you some answers that can help you.
- Regarding requirements/expectations, it varies a lot depending on seniority and on if we are talking about a level designer, a content designer and a gameplay programmer. For level designer you will be expected to know mostly blueprints and more regarding the overall use of the engine to create levels and sequencer to help build in storytelling and quests within the world. For gameplay programmer you will likely find expectations more inline with C++ and creating supporting nodes for the designers. Content designer is a bit of a middle ground between those two extremes.
- This is a huge question that we could expand for ages and it heavily depends on whether you see yourself as a designer or a programmer, my advice would be to watch some videos from GDC and/or unrealfest regarding level design and choose your profile in order to understand what skills to hone.
Now on to your profile questions: - not really, at least not in my experience, no studio I worked at has ever asked me to see my school diploma, they care about results, about you showcasing what you can do.
- Absolutely! specially if you are aiming for entry level jobs like trainee or junior, showing that you are a good learner, that you are not stubborn and are willing to be molded into the developer they need can go a long way during the interviews.
I hope my answers help you and good luck!