Are There Native Advertisments in Hacker News?

I just saw a link to https://www.drchrono.com/jobs/ posted as #16 on the front page. It did not have any upvotes shown, nor any comments. Is this a native advertisement?

"16. iOS and Django hackers needed, change healthcare with drchrono (drchrono.com)"

I'm not sure what you mean by "native advertisement", but YC-funded startups are allowed to post jobs (see https://news.ycombinator.com/jobs and the explanation at https://news.ycombinator.com/newsfaq.html). These go into a queue and one appears on the front page at a time, starting around #6 and falling in rank over about 3 hours.