Companies will leave listings up for 'openings' that they have no intention of actually filling. Mostly just to keep resumes coming in so they can keep tabs on the market and to give HR something to do.

There may only be openings for junior & senior positions. At least here in the US there has been an industry-wide neglect of training entry-level for over a decade. As the workforce aged, there's become an experience gap. There's a shrinking pool of people with on-the-job experience, tons of people with degrees but no real experience, and no systems or will to onboard them.