I applied through other source. I interviewed at BNSF Railway (Fort Worth, TX) in Oct 2025
Interview
There will be initial Codility based coding challenge, after that you will have Codility based code review interview and then Loop interview for 4 hrs with DSA and SDE rounds
Other Data Scientist Interview Reviews for BNSF Railway
I applied online. I interviewed at BNSF Railway in Jun 2025
Interview
No interactions with a human, just an automated "codility" assessment link sent shortly after applying. It takes up to two hours, so I found it rude to ask for that much of someone's time without investing any time of their own in talking to them. I quit the assessment as soon as I saw what they were asking. It shows they're unserious, and the culture wouldn't be a good fit. Especially when the salary range for their jobs are so broad as to be useless, they're not worth the time.
Interview questions [1]
Question 1
1. Code up the given equation (mutual information] and solution in numpy/pandas, without using any external resources.
2. Do a whole project on the given CSV with pre-processing, EDA, and regression modeling. No external resources, and a time limit.
I applied online. I interviewed at BNSF Railway (Fort Worth, TX) in Jun 2025
Interview
OA had two questions: one on coding a function, another on a regression task with multiple sub tasks. Time limit 80 mins, which was very short. I was not able to debug the second task in time
Interview questions [1]
Question 1
one on coding a function, another on a regression task with multiple sub tasks.