I'm reluctant to do that because it often takes human intervention to find the good ones or drop the bad ones. For example, in the above case I searched on both recycling and landfills. Also, we don't allow bots to post HN comments. For submissions, the whoishiring ones are done by software, but that's it.
https://news.ycombinator.com/item?id=20433851
https://news.ycombinator.com/item?id=19889365
https://news.ycombinator.com/item?id=19399543
https://news.ycombinator.com/item?id=19346342
Not quite as recent:
https://news.ycombinator.com/item?id=18893252
https://news.ycombinator.com/item?id=17841584
https://news.ycombinator.com/item?id=17677698
https://news.ycombinator.com/item?id=17409152
https://news.ycombinator.com/item?id=16174719
https://news.ycombinator.com/item?id=15888827