OpenAI
Leading AI research laboratory developing state-of-the-art foundation models like GPT-4.
5 Rounds
~21 Days
Very Hard
The Interview Loop
Recruiter Screen (30 min)
Standard fit check, behavioral questions, and resume overview.
Technical Loop (3-4 Rounds)
Deep dive into domain knowledge, coding, and system design.
Interview Question Bank
Data Engineer
•
Behavioral
•
medium
Describe a time you had to debug a silent data corruption issue. How did you detect it and fix it?
#Debugging
#Data Integrity
#Problem Solving
Data Engineer
•
Technical
•
medium
How do you monitor and alert on data drift in a pipeline feeding a machine learning model?
#Data Drift
#Monitoring
#MLOps
#Statistics
Data Engineer
•
Technical
•
medium
What metrics would you track to ensure the quality of a web-scraped dataset intended for model training?
#Data Quality
#Metrics
#NLP
Data Engineer
•
Technical
•
hard
Describe the algorithmic and infrastructural differences between implementing exact deduplication versus fuzzy deduplication on a petabyte-scale text dataset.
#Deduplication
#Hashing
#LSH
#Scale
Data Engineer
•
Technical
•
hard
What heuristics, statistical methods, and ML-based approaches would you use to detect and filter out low-quality, toxic, or repetitive text from a pre-training dataset?
#NLP
#Data Cleaning
#Heuristics
#Machine Learning
Difficulty Radar
Based on recent AI-sourced data.
Meet Your Interviewers
The "Standard" Interviewer
Senior EngineerFocuses on core competencies, system constraints, and clear communication.
SimulateUnwritten Rules
Think Out Loud
Always explain your thought process before writing code or drawing architecture.