What's the issue with Coinbase career site ? Can someone give referral ?

Hey y'all. I have been eyeing for Coinbase swe job for a while, and noticed that they keep posting and taking down and reposting the same jobs ? Is that some kind of HR game ? Are the jobs even real ? If they're legit can someone give me a referral. Fullstack web dev @ 1.5 YOE. TC: 120k #coinbase