The process is incredibly fast-paced and skip the HR fluff. Expect a heavy focus on raw engineering talent and low-level system understanding. After the initial screen, I had to jump into a deep-dive session involving real-world infrastructure challenges at a massive scale. They want to see if you can actually build things from scratch under pressure without relying on any "Magic" internal tools.
I applied online. I interviewed at xAI in Dec 2025
Interview
The interview process was clear and well structured. The discussion focused mainly on filesystem design and implementation, using a programming language of my choice. The interviewer emphasized problem solving, data structures, and reasoning over syntax. Overall, it felt practical and fair, with space to explain design decisions.
Interview questions [1]
Question 1
Design a filesystem progressively from start to end
Coding interview with code signal. Required to have camera, microphone, screen sharing and government ID. Not sure what the other steps would have been in the process. Typical leet code style questions.
