What does "scientific merits" in a job application mean?
It seems the use of "scientific merits" (and obviously especially the Finnish version of it) in a CV or application is specific to Finnish academic culture.

"Scientific merits" can be applied to a study, but the meaning of it there is hard to apply to a person.

I found its use in a Finnish application, where it is used as a title for "publications, teaching and student supervision and awards". So basically it could also be called "accomplishments" or "proven experience".

The linked example was the only actual use in a CV I could find (quickly). Of course, it is a single example, so I could be very wrong about my assumption this makes it part of "Finnish academic culture" more than general use.