Including non first author papers as "sample papers" on academic job application
Every paper published by a reputable publisher is a good paper and should be on the CV. Advising students who rightly have first authorship is also a good thing. In some fields, advisors aren't co-authors no matter the input on student papers.
It think it a mistake to leave such things off of the CV. In fact, somewhere in your application materials you might want to explain that you were advisor to the other author(s) on the papers. Probably not in the CV itself, but a statement of purpose for an academic job will benefit from indicating a willingness and history of advancing student research and careers.
I assume you know your own field's standards, but in some, people assume that the last author did the work and the others were along for the ride. I dislike that sort of thing, actually. But a faculty position in most places is more than just a heads-down-don't-bother-me researcher.

Edited to add. Including the papers themselves as separate from CV references is a bit different. The first suggestion is to ask first. The second, in the absence of guidance, would be to include a mixture, with mostly first author papers, but a sample of the others. But an explanation of the situation on the latter should be fine.