Avantari Technologies Machine Learning Engineer interview questions

Consisted of a *7 DAY* coding challenge before interview. The company is very slow in responding to emails and during the entire interview process. It takes weeks to months for them to respond. After I completed the coding challenge a few engineers in the company got on call with me and asked me a few questions. Interview didn't go too well, but they didn't respond regarding accept/reject. No mails. No phone calls. Completely ghosted!