<a href="https://news.ycombinator.com/jobs" rel="nofollow">https://news.ycombinator.com/jobs</a> is probably a good enough sample to answer that question. The answer seems to be Greenhouse and Lever.<p>(Some companies link to job descriptions on their own site and/or embed the ATS-hosted form in their site, but many of those use Greenhouse or Lever too. The companies linking directly to ATSes do seem representative.)
I moved my employer’s job board (previously Google Forms) to <a href="https://wrk.xyz/" rel="nofollow">https://wrk.xyz/</a> a month ago.<p>‘Wrk’ tries to be an all in one solution and you pay when you scale hiring (each active job posting is $10/month)<p>Also check out <a href="https://app.ashbyhq.com/product" rel="nofollow">https://app.ashbyhq.com/product</a> — I haven’t used this personally, but from what I’ve seen they’ve also built out an “all in one” platform pretty quickly and are still building fast.