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
Full Stack Engineer
•
Coding
•
hard
Write a rate limiter in Python using Redis to handle OpenAI API tier limits, specifically enforcing both tokens per minute (TPM) and requests per minute (RPM).
#Python
#Redis
#Rate Limiting
#Concurrency
Full Stack Engineer
•
Coding
•
medium
Write a Python script using asyncio to fetch data from multiple LLM endpoints concurrently, aggregate the results, and return early if any request exceeds a 2-second timeout.
#Python
#asyncio
#Concurrency
#API Integration
Full Stack Engineer
•
Technical
•
medium
How would you optimize a Python backend service that is heavily I/O bound due to waiting for model inference from GPU clusters?
#Python
#Performance
#Asynchronous Programming
Full Stack Engineer
•
Technical
•
medium
How does Python's Global Interpreter Lock (GIL) affect the performance of a multi-threaded web server, and how would you architect around it for a CPU-intensive task?
#Python
#Concurrency
#Multiprocessing
Difficulty Radar
Based on recent AI-sourced data.
Meet Your Interviewers
The "Standard" Interviewer
Senior EngineerFocuses on core competencies, system constraints, and clear communication.
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Think Out Loud
Always explain your thought process before writing code or drawing architecture.