From my interview with macro-eyes I got the impression that they still fairly new to recruitment and still learning how to hire new ML scientists to join their team, so they might be sampling the candidate pool until they find someone interesting. I saw their posting in May 2020 on a mailing list for machine learning. I applied for the job and they told me that I was selected to do a take-home data science challenge and a 1 hour technical interview. It seemed odd to jump straight into the take-home without even a phone screen first. They told me to spend atleast 5 hours on the challenge (but it took me longer because of the write-up portion) and the 1 hour technical interview was conducted right after I submitted the take home challenge. After all this they essentially ghosted me. I followed up but never heard anything back. They seem like a cool company, but don't spend too much time with them if you aren't very experienced as they will not respect your time if you aren't what they want. For context I have a research masters degree in engineering and 1-2 years of work experience.