As a software engineer, your job is to solve problems, not just write the software, which is only the tool, like a hammer.
I learned from everywhere — books, articles, classes, other people, completely unrelated sources and areas. Anything could be related to what you are doing — even if it is just applying the same thought process.
You never know where you will pick up information and how it will relate to your project. My latest article is an example.
How Do You Prevent Your Ice Cream from Escaping?
My first process problem, solved at age 5 or 6. Still used. Early school and computer career predictor. Waiters think…
Good luck on your interview.
By the way, if you get the job, volunteer for a small project, if possible. You will learn a lot.