RejectedOnsite

A Feature-Flag Evaluation Engine, Then Rejected After a ‘Great Chat’

CrestaSoftware Engineer · Onsite · Jul 2026

I used Claude to help organize this write-up. The interviewer kept saying he really enjoyed our conversation, and then rejected me anyway. Problem background: you're given three JSON files and asked to implement a feature-flag evaluation engine that maps every user to a final boolean value (on/off) for every flag. Input files: flags.json — definitions for 7 flags user.json — 10,000 users expected…

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