I applied online. The process took 2 months. I interviewed at C3 AI in Jan 2022
Interview
Cold and industrial with "no-reply" emails disregarding the humans behind emails. That captures the entire interview process for me.
Two months after my application, I received an email out of blue that I was fast-forwarded to on-site.
Got a totally negative vibe when chatting to different people during the on-site interviews, with an emphasis on "we are so smart".
My second interviewer showed up 9 minutes late to a 30-minute interview. Started twisting simple stats questions in ways that were inaccurate. I was not able to understand what he was really after nor I could correct him because interview is not a place to argue with the interviewer. One of my worst interview experiences trying to answer the question while the inexperienced interviewer was trying to outsmart me by twisting simple questions with a smirk on his face.
Interview questions [1]
Question 1
How do you forecast sales of a product when you have three tables of data on sales, promotions and google analytics?
Are two independent variables necessarily uncorrelated and vice versa? (I think the true question that the interviewer could not spell is this "does lack of linear correlation between two variables mean they are independent?
How do you compute a non-parametric CI for parameters of a model?
Answer is bootstrapping and taking 2.5 and 97.5 percentiles. But again the interviewer was trying to twist everything to an incomprehensible level for himself and me.
First gave an online python coding test then gave a hirning manager interview which was of 40 mins after that I didnot get the call. It was basically why you did this, what will you improve now , defend your choices
I applied online. I interviewed at C3 AI (Singapore)
Interview
Hackerrank --> three tech interviews (proceed to the next one if you pass the current one) each round is 1 hour long --> hiring manager interview (1 hour)--> VP interview.
Interview questions [1]
Question 1
tech interviews: 1) (1 hour) traditional ML based case study, 2) (1 hour) ML concept deep dive, and 3) (1 hour) coding (leet-code medium)
Resume screening -> technical assessment -> 4 rounds of interviews:
- personal projects, simple questions not there to trick you
- situational questions: "what would you do if..."
- machine learning: starts from the very basics (stats and probabilities) to more up to date models
- coding: medium leet code
Data Scientist applicants have rated the interview process at C3 AI with 3.3 out of 5 (where 5 is the highest level of difficulty) and assessed their interview experience as 41% positive. To compare, the company-average is 34.6% positive. This is according to Glassdoor user ratings.
Candidates applying for Data Scientist roles take an average of 30 days to get hired, when considering 105 user submitted interviews for this role. To compare, the hiring process at C3 AI overall takes an average of 33 days.
Common stages of the interview process at C3 AI as a Data Scientist according to 105 Glassdoor interviews include:
Phone interview: 31%
One on one interview: 22%
Presentation: 19%
Skills test: 9%
Drug test: 7%
Group panel interview: 6%
IQ intelligence test: 3%
Personality test: 2%
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