A data scientist talked with me about some product questions, gave me a SQL question and finished with some ML questions. It was pretty easy but they still rejected me. Never heard about the reason why and it still bugs me.
Me postulé a través de un reclutador. Acudí a una entrevista en Noom
Entrevista
Interview process was good. Had a sql round, python coding round, product analytics round and ML modeling round. I did not brush up some of the basic/theoretical aspects because of which it wasn't in my favor. But overall I enjoyed the process.
Preguntas de entrevista [1]
Pregunta 1
SQL:
Joins, sub-queries, ranking
Python:
Don't remember the exact question - but average difficulty
Product analytics:
Guesstimate number of people flying in any country at any given point in time and how will you validate if your answer is correct without google.
How would you A/B test a pricing change on the website? If you see you start seeing decline in revenue from this change in treatment group. would you stop the experiment and pull the plug?
ML Modeling:
Data set given, need to feature engineer and build a weight loss prediction ML model within 2 hours
what is bias-variance tradeoff?
What is regularization?
how to interpret co-efficients in linear regression
why is collinearity a issue for linear regression and issues interpreting them.
Three rounds: a case study with some statistical knowledge questions (with a SQL question), a modelling round with ML questions at the end, and a behavioral. There was a recruiter call before the process started too.
Preguntas de entrevista [1]
Pregunta 1
Some example questions are: what does an r-squared value represent? Write a query for this information (in a coderpad)
Me postulé en línea. El proceso tomó 2 semanas. Acudí a una entrevista en Noom en ene 2022
Entrevista
Call with recruiter, then interview with a data scientist on the team, and then a virtual onsite with 5 interviews. the virtual onsite is a bit lengthier than most. nothing was unexpected, although the process is tiring.
Preguntas de entrevista [1]
Pregunta 1
How would you answer the question of whether or not a tennis match is won by complete randomness
