eBay interview notes, page 6 of 6

Large Enterprises

Most of these eBay write-ups come from Software Engineers (47), then Product Managers (4) and Backend Engineers (1). The most reported rounds are the technical phone screen (32), the system design round (9), the behavioral / leadership round (4) and the product sense round (4).

53 interview notes · updated Jul 2026

eBay·Software Engineer·Technical Phone Screen

Jul 2026

Coding round for a full-stack role at eBay. The recruiter said any language was fine but the interviewer locked it down to JS/TS on the spot, which threw me off since I'm way more comfortable in Python.

Implement a function that assigns ads to browser positions for a user. Inputs are a list of position strings, a list of candidate ads, and a per-user state dictionary tracking how many times each ad has been shown. The function should randomly assign ads to positions without duplicates (when supply allows), respect per-ad display limits, return the assignment, and update the state dictionary.

“The logic itself wasn't too bad to reason through.”

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eBay·Product Manager·Onsite - Product Sense / Strategy

Jul 2026

Short eBay product round, basically just one question about improving the platform. Not much else to go on.

How would you improve eBay?

“Classic open-ended product question.”

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eBay·Software Engineer·Technical Phone Screen

Jul 2026

eBay Software Engineer coding round, one algorithmic problem about wildcard pattern matching against a dictionary. Pretty focused session, no fluff, just the problem and complexity analysis at the end.

Given a dictionary of words and a pattern string containing lowercase letters, '?' (matches exactly one character), and '.' (matches one or more characters), return all words from the dictionary that fully match the pattern. Also explain your approach to handling the variable-length '.' token and report your overall time complexity.

“The '?' part was fine, that's basically just length-checking a slot.”

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