The process was online and got completed at a decent pace. There were 4 rounds- 1. Telephonic - HR representative will schedule a call according to your availability and ask you a few questions about your past experience, your salary expectations, why are you looking for a switch. 2. Online test (Python and SQL) - 30 MCQs and 2 coding questions. The level of difficulty depends upon how familiar you are with the syntax. Do prepare/brush up beforehand. 3. Technical Round - You will be interacting with Lead Data Scientist and the duration of this round will be around 60-75 minutes. Questions asked- Few SQL queries, python pandas codes, k-means clustering, elbow-method, past projects. 4. Final Round - You will be interacting with the Hiring Manager. This round will be around 60 mins. Questions asked - few unstructured real-world business problems related to retail/grocery shopping. Basically, they will observe how you structure the problem and solve it. Deep discussion on one of the previous projects. Why do you want to join dunnhumby?

First-round was a coding test. It was a decent test. The second round was a telephonic technical interview. It was a very interesting interview and quite difficult. The third round was with the director over a video conference. it was also decent round with case study problem worst was the HR round. they were not able to understand the question which I was asking about the company. They took almost 3months 15 days to inform about my candidature. The HR process is very bad and company need to look over that