I applied through an employee referral. I interviewed at OpenAI (San Francisco, CA) in May 2026
Interview
2 ML coding (60 min each)
2 General Coding (60 min each)
1 Hiring manager INTERVIEW(30 min)
I didn't get to onsite stage
But if i get there, it would be presentation + hm interview
2 ml coding rounds, 2 general coding rounds
ml codings: one pytorch round, one numpy round
general coding: 60-75min, doesn't require optimal solution, need to do it quickly to pass test cases
Interview questions [1]
Question 1
- given set of human labeler, labeling tasks, and model, give balanced assignment schedule for each (human, task), (human, model), (model, task) pairs
Recruite reached out via LinkedIn, for the GPU infra team. First round was a 15 minute recruiter call that was more about team fit and culture, as well as why OpenAI. Next was a technical screen, which was then followed by an onsite with 1 sys design, 2 ml coding, and 2 coding questions
Interview questions [1]
Question 1
Implement a Memory Allocator, followup question afterwards