Candidatei-me online. Fui entrevistado pela comma.ai (San Diego, CA) em mai. de 2026
Entrevista
The interview process at comma.ai for the Office Manager role was brief and, honestly, not very reflective of what the role actually demands. For a position centered around facilities management, vendor coordination, and operational execution, the bulk of the interview leaned heavily on riddle-style logic questions — including the classic lily pad exponential growth puzzle — rather than situational or behavioral questions that would surface real operational competency.
To be fair, comma.ai is a tech company and the emphasis on quick thinking and outside-the-box reasoning makes sense culturally. A couple of the questions did dig into facilities problem-solving and how you'd approach getting projects done under pressure, which felt more relevant and gave the conversation some substance.
That said, the process felt short for the scope of the role, and the riddle format — while intellectually interesting — isn't necessarily the most accurate signal of whether someone can run a complex operation. Strong office managers and facilities leads are systems thinkers, not trivia performers.
A Notable Observation
The role was reposted within a week of candidates being notified they weren't moving forward. Make of that what you will — but it raises questions about whether the hiring process was fully formed or whether the bar was clearly defined going in.
Bottom Line
If you're interviewing here, brush up on your logic puzzles and be ready to think fast on your feet. Come prepared with concrete examples of operational wins. And go in with eyes open about the process itself.
Perguntas de entrevista [1]
Pergunta 1
A lily pad doubles in size every minute. It completely covers a pond in one hour. How long does it take to cover a quarter of the pond?
Candidatei-me de outra forma. Fui entrevistado pela comma.ai (San Diego, CA) em mai. de 2026
Entrevista
Doing the challenge for 1 month on a top leaderboard
Two phone calls:
One with ML leader who designs the challenge:
Intro -> One brain teaser question -> research details about the submission & future improvements
Another phone call with the CTO:
Two brain teaser questions, that's it.
Perguntas de entrevista [1]
Pergunta 1
1. Given a fuse that burns 1-minute with unpredictable changing burning rate. Now you have infinite matches, how can you design a 30-second timer?
2. It's one hour before sunset. If you keep walking west, you defer the sunset by how much time?
3. Design a load balancer for data center that can schedule tasks to fully utilize GPU powers
Candidatei-me online. O processo levou 5 dias. Fui entrevistado pela comma.ai (San Diego, CA) em jun. de 2021
Entrevista
Software engineering challenges and technical questions. Both concrete questions of machine learning and brain-teaser questions. Concrete questions about self-driving and software engineering too. Questions likely depend on specific position applied for.
Perguntas de entrevista [1]
Pergunta 1
How to build a vision system to detect motion from video.