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Pinterest Software Engineer interview: route reconstruction and Sparse Matrix

PinterestSoftware Engineer · Jun 2026

I expected Pinterest to be intense, but the technical interview was surprisingly light. There were only two coding questions, and both were straightforward enough that I felt a little underwhelmed afterward. One asked me to reconstruct routes from unordered travel tickets. The other was to implement a Sparse Matrix class. I had prepared with PracHub case studies, which gave me a useful structure…

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