Hey, welcome to Mapcore!
I had a look over your portfolio. I like that it's clean and easy to read. You did a good job with that!
I have to ask, to what companies have you applied over these 2 years? How far did you get in the recruitment process? Did you manage to do any tests? And what feedback did you get if any?
The level blockouts are cool, but they're easy to dismiss because of that. Most of them look like the very first version with limited consideration for metrics or art. The only exception to this appears to be the Chorus and Bank level. You did a much better job at maintaining consistent metrics and working with modular assets. However, the art pass and lighting are not exactly that ideal. As much as level designing is about blocking out stuff and quickly testing ideas, you should also ask yourself how the artists are going to translate some of your elements into functional assets and also keep consistency.
If you aren't targeting a specific company and are instead casting a wider net, then you have another issue. All of your levels are designed for old linear single player games. And while there are studios specifically doing that, there's far more opportunities in multiplayer and open world games. That's just the current situation in the industry. Most games have adopted some form of open world design and feature a fully fledged or limited pvp multiplayer.
My number one advice to anyone applying for a junior level design position today: get a multiplayer level and some sort of open world location. And they don't have to be complicated, but at least take them through the development process, from blockout to release. Get player feedback and incorporate it.
And I know that there is a lack of SDKs being released for new games, but there are a still a few that do and have a shit ton of assets. Have a look at the CSGO SDK and Far Cry 5 Arcade editor.
I don't know what else to tell you. Don't be discouraged! Sooner or later you're gonna land a job, but consider what I mentioned above. I'm convinced it would increase your chances. Also, starting in QA/QC is always an option. Just keep at it and good luck!