My interaction with Coinbase:
CB: Since you're in the middle of your job search, and you have good work experience and we have limited time, we'll skip technical interview if you pass our test with 4.5 score or above and I will connect you right with Director of Engineering.
ME: OK
CB: Here is 40-minute TripleByte test.
ME: Done
CB (the next day): You scored a 5/5  and in the 96th percentile! I would love to move forward and have you speak with XXX, Director of Engineering
ME: OK
(non-technical call with director of engineering)
CB (next day): we have decided to proceed with other candidates (automated response)
ME: (reached out to HR, no response)
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It was really weird, I believe Director of Engineering discriminated me by age or nationality (no proof though).
Ask HN: Who is hiring? (December 2018)