OpenSpace (CA) Computer Vision Engineer interview questions

I was connected to their CEO by a mutual acquaintance. We saw that there was an immediate fit based on my skill set so we opted directly for an onsite interview. I spoke with the CEO and the other two cofounders. The interview consisted of speaking about my experience and digging into my technical skills. Overall I had a great time and had a pleasant conversation. There was no follow-up after this point, even after sending a few follow-up emails. This company ghosted me and I never heard back from them. Extremely unprofessional. Given the technical backgrounds and experience from the three cofounders, I would have expected a lot better. This lack of professional courtesy and integrity should be an indication of how they treat their employees. Stay away at all costs.