The process starts with an online assessment which has two very easy data analysis and model building questions, like cleaning the data, filtering the data, running regression, etc.

The second step is the virtual onsite interview, which consists of three back-to-back rounds, each of 45 minutes. One is with the hiring manager, and then two with AI Researchers/Data Scientists.

The third is the final interview with the Director, and then the offer.

I was rejected after the second round.

The HR person was not very helpful and never responded timely. All my interviews went quite well, and I still got rejected after 10 days with a generic email from the HR. I reached out to her for feedback but never heard anything.

NLP and transformer-related questions. Digging deep into the functioning of Transformers, BERT, and GPT.

Dimensionality reduction techniques, PCA, etc.

How would you derive the Ordinary Least Squares?