I applied online. I interviewed at Cognistx (Arlington, VA) in Jun 2021
Interview
First round coding interview was based on building Machine Learning models as a coding question and MCQ's about ML/DL concepts. Further rounds were interviews where I was asked algorithms and case studies
Interview questions [1]
Question 1
Case study for improving machine Learning model to get higher investments through clients
~3 hours OA
1 hour DS interview including general DS questions, coding questions, and a case study.
Another 1 hour DS interview.
30 min behavioral interview with a PM.
30 min interview with the CEO.
I applied through university. The process took 3 weeks. I interviewed at Cognistx (Pittsburgh, PA) in Nov 2018
Interview
Series of 4 interviews, some of them remotely, others at the offices (Pittsburgh, PA):
1. Project manager and Data Scientist (remote)
2. Data Scientist (in site)
3. Senior Data Scientist (remote)
4. CEO (in site)
The interviewers were very professional and kind.
Interview questions [1]
Question 1
After 1st interview, I was asked to do a Data Science test. They gave me 2 days to do it.
Afterwards, I presented the results in site to the DS team and the CEO.
