(Hi! This is Moritz, who currently maintains the fossjobs site)
It's hard to define clear criteria.
We do want to avoid jobs where people just "use" FOSS. The focus is definitely paid positions where you /contribute/ to FOSS in some way. Besides obvious developer positions, that might be administrative or sysop jobs at FOSS projects/orgs or other non-profit environments, more than sysop jobs at random web startups.
Since you're currently maintaining the site, you might want to consider splitting "Serbia and Montenegro" into two separate countries, since they've been independent from each other for over a decade now.
As I've said, there are no criteria, it is a case-by-case decision. The general guideline is on the website, "We only list jobs that directly improve and involve FOSS or Open Hardware projects."
That being said, I welcome suggestions on how to improve the wording, some examples what fits and what does not, etc. -- Thanks!
It's hard to define clear criteria.
We do want to avoid jobs where people just "use" FOSS. The focus is definitely paid positions where you /contribute/ to FOSS in some way. Besides obvious developer positions, that might be administrative or sysop jobs at FOSS projects/orgs or other non-profit environments, more than sysop jobs at random web startups.