After 3 rounds of interview with HR, Manager, and then a whole 5 hr panel interview I got ghosted. It was a complete waste of time and honestly I'm surprised at the audacity of a company to ghost a candidate. The very least you can do is send a rejection email. I followed up 2x after this via email with no response from the 2 hr people included on the initial email. The job posting was reposted 3x after my interview. I already had a bad feeling when I saw that the job posting was up for 60+ days when I asked HR about it they made the excuse that they couldn't find someone and that it was weird to them cause no one was qualified. The other role I applied for asked for some engineering question to be answered and expected candidates to spend a day to write up an essay to respond "if we really wanted the job". Unprofessional of HR to laugh and say I also have homework for you. When I have been a working professional for multiple years, not a student.