Openai Software Engineering Fundamentals Interview Questions

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OpenAI

Hard

Machine Learning Engineer

Explain what torch.distributed.barrier does

Question In PyTorch distributed training, what does torch.distributed.barrier() do? Follow-ups - Give an example of when you would use it. - What are ...

Software Engineering Fundamentals

Explain JS threading and useState vs useRef

Answer the following conceptual questions about JavaScript and React: 1. JavaScript and multithreading - How does JavaScript's execution model wo...

Software Engineering Fundamentals

Dec 6, 2025

OpenAI

Medium

Software Engineer Locked

Design a social network with snapshots

You are asked to design and implement an in-memory SocialNetwork class that supports users following each other and creating snapshots of the follow g...

Software Engineering Fundamentals

Nov 16, 2025