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
Frontend Engineer
•
Coding
•
medium
Implement a custom React hook `useStreamingResponse(url, prompt)` that connects to an SSE endpoint, accumulates the streamed text chunks, and returns the current text and a boolean indicating if the stream is complete.
#React Hooks
#Server-Sent Events
#Asynchronous JavaScript
Frontend Engineer
•
Coding
•
medium
Write a custom React hook `useFetch` that takes a URL and options. It should handle loading state, error state, caching responses, and aborting the request if the component unmounts.
#React Hooks
#Network
#AbortController
Frontend Engineer
•
Technical
•
hard
How does React 18's concurrent rendering work? How would you use `useTransition` or `useDeferredValue` to keep a chat interface responsive while rendering a heavy Markdown response?
#React Internals
#Performance Optimization
#Concurrency
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.