RejectedTechnical Screen

Walmart Data Scientist interview with supply-chain time series and a missed follow-up

Walmart LabsData Scientist · Technical Screen · Jul 2026

The process felt unusually intense and a little chaotic from the start. After an initial technical screen, I had a supply-chain technical round with several interviewers. It covered SQL, Python, statistics, including a probability question, and deeper machine-learning model details. The session lasted about 1.5 hours and focused heavily on time-series modeling. It was hard to follow every prompt…

Shared by a candidate · reported Jul 2026. Interview formats change; use it as a guide, not a script.