C3 AI Fullstack Engineer Interview Questions
& Process
Real candidates share what happened, how many rounds they had,
and how the experience turned out.
Based on 8 interview experiences · FREE TO READ
Candidate interview experiences
First-hand accounts from people who interviewed at C3 AI.
C3 AI
Fullstack Developer
Mid Difficult Neutral experience No offer 4 rounds
Interview process
Recruiter call Technical screen Technical screen Technical screen
Interview formats
Behavioral Coding Coding System Design
The interview process had several scheduling issues, with multiple rounds being rescheduled. First up was a hiring manager round with behavioral questions. After that, there were two coding rounds and one system design round. The coding rounds featured LeetCode Medium and Hard problems, and the system design round involved designing a monitoring system.
Confirmed questions3 questions
- LC Walls and gates problem
- Design an In-Memory File System (LC 588)
- Tell me about yourself/past experiences.
C3 AI
Full Stack Developer
Entry Average Neutral experience No offer 3 rounds
Interview process
Recruiter call Technical screen Onsite
Interview formats
Behavioral Coding
I applied for a full-stack developer role in Redwood City, CA. The first round was a 30-minute behavioral interview covering my goals and my strengths and weaknesses. The second round involved a LeetCode Medium problem, 279. Perfect Squares. I wasn't prepared for dynamic programming and couldn't write any code, but it was a good experience overall. I expect the next round to be another coding interview, followed by a System Design round if I pass the coding one. Hope this helps and good luck!
Confirmed questions2 questions
- Tell me about your goals, your strong points, and your weak points during a 30-minute behavioral interview.
- Could you solve LeetCode Medium 279, Perfect Squares, even though you weren't prepared for dynamic programming and couldn't write any code?
C3 AI
Full Stack Engineer
Lead Average Positive experience No offer 5 rounds
Interview process
Recruiter call Technical screen Technical screen Technical screen Technical screen
Interview formats
Behavioral Coding Coding System Design Behavioral
So first up was the hiring manager chat. Then we moved onto a coding challenge combined with some behavioral questions. That was followed by another round of coding and behavioral questions. The next step involved system design questions and more behavioral stuff. Finally, I had another interview with the hiring manager, which also included behavioral questions.
Confirmed questions1 question
- Regarding behavioral questions, how do you approach prioritizing tasks?
C3 AI Fullstack Engineer Interview Questions
Quoted word for word from C3 AI interview reports.
“How would you return a well-formed string by removing braces that aren’t well-formed?”
Read reports →“Design an In-Memory File System (LC 588)”
Read reports →“Could you write the code for a company build pipeline that handles test execution and deployment?”
Read reports →“Could you solve LeetCode Medium 279, Perfect Squares, even though you weren't prepared for dynamic programming and couldn't write any code?”
Read reports →“Can you tell me about any Non-Disclosure Agreements you've encountered?”
Read report →“Tell me about your goals, your strong points, and your weak points during a 30-minute behavioral interview.”
Read report →“Regarding behavioral questions, how do you approach prioritizing tasks?”
Read report →Formats, difficulty and experience
Across all 8 C3 AI interview reports.