The interview process begins with a review of your application documents by the recruitment team at CVS Health. During this initial screening round, recruiters assess whether your qualifications, experiences, and skills match the job requirements. First Technical Round If your qualifications match with job requirements, then you’ll be invited to the first technical round. This first round is normally conducted online, and the format is live coding. This means that you’ll get LeetCode-type of questions that will mostly test your programming and algorithmic skills. Second Technical Round Once you pass the first round, you’ll be invited to a second technical round with a team member from the analytics department. In this round, you’ll be presented with case study-type questions, which means they want to assess both your general problem-solving skills and your thought process when generating solutions. Third Technical Round In the third technical round, you’ll again have the interview with members from the analytics department. However, the interview questions in this round are catered toward data science and machine learning concepts, such as statistics, probability, A/B testing, bias and variance, overfitting and underfitting, etc. Fourth Technical Round This is the final interview round at CVS Health. In this round, you’ll have an interview with a panel of three people from the analytics department. The type of questions that you need to tackle are a mixture of the questions that you’ve seen in the previous rounds and behavioral questions. There’s also a coding question that you won’t have to fully code out, but will instead will explain the logic on how to solve the problem.

The phone screen was surprisingly in-depth, lasting about 40 minutes and focusing heavily on real-world applications of data science. We discussed model development, particularly for predicting hospital readmissions, which was quite challenging. I had just practiced a similar scenario on PracHub that mirrored this section almost flawlessly. Following this, I went through a technical round where I tackled questions on feature engineering and demographic fairness. Ultimately, I received an offer but decided to decline it after weighing my options.