The process is rigged. I don't even think they are interested in hiring. Most likely, they just have job titles listed on their site for a "unicorn" that happens to pass by.

I went through both a coding and architecture round. Both questions were not difficult. I went at the pace the interviewers desired, balancing discussion over just spilling the answer onto the page.

I was given a "no" based on my performance on the coding round. The coding question was easy. They started by showing the first part of four or five parts. I asked the interviewer about the number of parts and pacing. They assured me to go at a casual pace, test slowly, etc. I got through the first two parts without any issues, doing multiple test cases while discussing.

Then, after those two parts, the interviewer jumped to the fourth part and said, "Let's verbally discuss it." He called it a "bonus." Again, I went through it without any issues, and he agreed with my good implementation.

Most likely, they have jobs posted as a requirement for internal promotions or H1B hires. Don't waste your time interviewing here.

Write code to implement a database.