← Interview experiences
Rejected

Machine Learning Engineer at OpenAI

Difficulty
Process took
7 weeks

How it went

The candidate was referred and proceeded through several technical interviews, ultimately being rejected before reaching the hiring manager stage. The interview process was described as less gameable than typical big tech interviews, with early rounds focusing on algorithms and coding speed. Later stages involved practical ML, debugging, and a challenging statistics-heavy round that felt graduate-level.

What came up

Data ModelingMachine LearningConceptStatistics & ExperimentationData AnalysisCodingSQLData Structures & AlgorithmsPeople ManagementProject ManagementProgram SenseCross FunctionalSystem DesignProduct DesignEstimationProduct StrategyAnalyticalTechnicalExecutionBehavioralCustomer InteractionApp CritiqueData Pipeline DesignArtificial IntelligencePresentationPortfolio ReviewDebuggingCode ReviewProject Discussion

A candidate-reported account, lightly edited. Interview processes change by team and date.