Amazon·Data Scientist·Technical Phone Screen
Jul 2026
Amazon Data Scientist interview with a Tableau-heavy technical round. Three questions, all centered on dashboard design, filter mechanics, and data viz principles. Felt more like a BI engineering interview than a data science one, which threw me off a bit.
- What are the key differences between a JOIN, a BLEND, and a RELATIONSHIP in Tableau, and when would you use each?
- Tableau has six filter types applied in a specific order of operations. Can you walk through that order and describe a real scenario where using the wrong filter level produces incorrect results?
- A stakeholder wants to use a pie chart to display 12 product categories. What would you recommend instead and why?
“I knew joins cold but blends tripped me up a little.” The rest of the author's notes on Data Scientist interview at Amazon, Technical Phone Screen round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.
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