I applied for the job online with a recruiter. After completing a python and machine learning test, the recruiter arranged an interview with a head of data scientist. The interview includes a lot of technical questions

I applied through a recruiter. First is the phone screen. Next is a 2-hour test, one hour for machine learning test and the second hour for Python coding test. It's conducted online. Two weeks later, the recruiter told me that I passed the machine learning test but failed the Python coding test.