WellFound is an excellent platform in searching for FT, PT, etc. positions are noted startups and high growth companies. Easy to navigate including noting your preferences for a company that you might like to work for, I've been using them for over 7+ years.

My only negative feedback is the companies aren't very proactive in reaching to candidates for interviews or at least show an interest. I've applied to startups directly on their websites and heard back for interviews. etc.