I applied online. The process took 1 week. I interviewed at Wayfair (Boston, MA) in Feb 2019
Interview
I applied on the website and had a brief call with a recruiter and then a tech call with a data science team leader. When they asked me about approaches to analyzing a dataset and suggested methods that I've had success with, I got the feeling I hadn't given the answers. Ultimatly, the interviewer lead me to an answer he wanted, which I can best summarize as the only the first 2 weeks of Andrew Ng's Coursera Machine Learning course (great course, go through the whole thing!). It was the type of tech interview that left me wondering if I should have dumbed down my answers.
Interview questions [1]
Question 1
How would you correlate each device a person visits the website with back to that person?
I applied online. I interviewed at Wayfair in Mar 2026
Interview
Received the Online Assessment on Hackerrank, including data manipulation & data insights. Data manipulation was on Pandas, not difficult, and data insights were an excel spreadsheet, and drew some insights and recommendations from it.
Interview questions [1]
Question 1
Inspect the data. What insights do you get? Give recommendations based on your insights, and explain how you would evaluate and what the possible risks are.
I applied online. The process took 1 day. I interviewed at Wayfair (Boston, MA) in Oct 2025
Interview
Technical Interview on SQL and Python. Makes you program a machine learning model and write intermediate SQL commands. Overall, not too difficult, and it takes roughly 75 minutes. I would suggest praticing on Hackerrank
Very average interview where the questions were ambiguous. It was very ambiguity. And not clear on the requirement. So in short not difficult. Hard to say if anyone should interview for this company
Interview questions [1]
Question 1
How can u filter products which are similar to light lamp on wayfair site