Development Intern Interview Questions

5,455 development intern interview questions shared by candidates

Probabilities (gambling, coin flips etc), and brain teasers with one being about four guys crossing a bridge, 2 at a time. A flashlight had to be brought back and forth so they could see. Everyone’s walking at different speeds, and you need to figure out the sequence they need to do it.
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Intern Business Development

Interviewed at Jane Street

4.4
Nov 3, 2017

Probabilities (gambling, coin flips etc), and brain teasers with one being about four guys crossing a bridge, 2 at a time. A flashlight had to be brought back and forth so they could see. Everyone’s walking at different speeds, and you need to figure out the sequence they need to do it.

You are given a 2D board with two types of pieces. Implement a class that supports adding a piece to a column (pieces shift upward) and methods to check whether any column or row consists entirely of the same piece type.
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Software Development Engineer (SDE) Intern

Interviewed at Jane Street

4.4
Nov 10, 2025

You are given a 2D board with two types of pieces. Implement a class that supports adding a piece to a column (pieces shift upward) and methods to check whether any column or row consists entirely of the same piece type.

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