This job board only has offers from companies that received funding from Y Combinator. You'll mostly find early-stage startup jobs, although a few more established companies also post their offers there. Quite a few offers are for first hires and most jobs offer equity. You can filter by years of experience required, job type, location, required visa status etc. You can also create a Y Combinator profile so that companies can find you. There is a limit to the number of jobs you can apply for each week, depending on your experience. It’s about 5-10 jobs a week.

PowerToFly is all about diversity. They list job offers from companies that are committed to creating inclusive environments. Not all jobs are remote but there is a 'remote' filter.