Data Scientist applicants have rated the interview process at PubMatic with 3.7 out of 5 (where 5 is the highest level of difficulty) and assessed their interview experience as 33% positive. To compare, the company-average is 39.5% positive. This is according to Glassdoor user ratings.
Candidates applying for Data Scientist roles take an average of 18 days to get hired, when considering 3 user submitted interviews for this role. To compare, the hiring process at PubMatic overall takes an average of 23 days.
Common stages of the interview process at PubMatic as a Data Scientist according to 3 Glassdoor interviews include:
Phone interview: 43%
Group panel interview: 14%
Presentation: 14%
One on one interview: 14%
Skills test: 14%
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the interview was good. I was rejected in the last round. they asked very good questions from DS/ML.Every round was for 1 Hour. They asked coding questions also. remove duplicate from a list.
Interview questions [1]
Question 1
1. evaluation metrics for regression?
2. evaluation metrics for classification?
Applied online and recruiter called for initial phone screen. A week later, technical interview with hiring manager was set up.
Poor communication on what was to be expected for technical interview. They said there will be coding exercise, but there was no coding exercise. This was one of the most exhausting/frustrating interviews I have been in. Seemed like the interviewer had not read through my resume beforehand.
For the first 10-15 mins, he spent time asking about my work status in the country and why I was working while I was still studying. (I had several internships listed on my resume). After this, he asked me to explain the ML projects on my resume in detail. Most of the projects I had were NLP, which was not his area of interest and he kept asking me to repeat what the project was about. He then asked me to explain a non-NLP project and asked to describe the algorithm in detail. (It was a complex algorithm, and I failed to remember the specifics.)
By this point I had already mentally checked out of the interview, and knew this role/company was not a good fit for me. Got a phone call from recruiter the next day saying I will not be moving forward in the process. This is the first time I have been relieved to hear that.
I applied online. The process took 4 weeks. I interviewed at PubMatic
Interview
HR contacted me via LinkedIn and sent me an assessment test questionnaire. Once I passed that I had 1 HR and 2 technical video calls. After that I had a video panel consisting of 3 more technical calls. All the interviewers were very intelligent yet friendly. HR is also super responsive in setting up these calls.
Interview questions [1]
Question 1
Technical calls covered questions from machine learning, linear algebra, probability, vector calculus, statistics, SQL, python concepts and coding.