Data Engineer interview at Facebook: unclear bookstore scenario

Facebook·Data Engineer·Reported Jul 2026
Hard

After a recruiter screen, I went into a technical conversation that felt tougher than the preparation materials. The difficulty was not only coding or SQL. A scenario resembling a bookstore checkout system was described too vaguely for me to know the intended behavior, and the interviewer did not help clarify it.

Once I understood what to build, I worked through it, but the experience still felt like a test of interpretation under pressure as much as correctness. I did not receive an offer. The unclear requirements were the hardest part to reconcile afterward.

Location: United States. Overall feedback: positive. Offer status: no offer.

Published

Curated and edited by PracHub

Discussion

Sign in to join the discussion. The author is notified of every comment.

Loading comments…

Interview at a glance

Company
Facebook
Role
Data Engineer
Difficulty
Hard
Date
Reported Jul 2026

Real Facebook interview experiences

First-hand reports from Facebook candidates — the rounds, the questions they were asked, and how it went.

All 5 Facebook interview experiences