Skip to contentSkip to footer

Principal Data Scientist Interview Questions

Salaries
Interviews

484 principal data scientist interview questions shared by candidates

SQL: quite basic joins, groupbys, some window functions Python: create a function to estimate cashback of each transaction given different assumptions Experimentation: there were maybe a dozen questions here, do your homework and learn about experimentation!
avatar

Senior/Principal Data Scientist

Interviewed at Cash App

3.7★
Jan 23, 2024

SQL: quite basic joins, groupbys, some window functions Python: create a function to estimate cashback of each transaction given different assumptions Experimentation: there were maybe a dozen questions here, do your homework and learn about experimentation!

Technical screen involved mainly SQL questions as this was for a data modeling focused role. Some on SQL logic (it's open ended, so you can answer with whatever dialect you're familiar with) and some on writing performant queries.
avatar

Staff/Principal Data Scientist

Interviewed at Brightline

3.7★
Dec 22, 2022

Technical screen involved mainly SQL questions as this was for a data modeling focused role. Some on SQL logic (it's open ended, so you can answer with whatever dialect you're familiar with) and some on writing performant queries.

Viewing 401 - 410 interview questions

See Interview Questions for Similar Jobs

Senior Data ScientistPrincipal Scientist

Glassdoor has 484 interview questions and reports from Principal data scientist interviews. Prepare for your interview. Get hired. Love your job.