Me postulé en línea. El proceso tomó 5 semanas. Acudí a una entrevista en Groupon (Londres, Inglaterra) en oct 2018
Entrevista
The process took around 5 weeks. It contained 4 rounds in total. First round was a VC with a senior data scientist and questions were mostly around the cv and few about business understanding of GroupOn. Followed by a second round by another data scientist. It was mostly technical round and were questions were on Machine Learning. Third round was VC with live coding test. This was the round where could I performed little. Even then I recieved call for a final round which is face to face at London GroupOn office. Last round was mostly a managerial round.
After completion of rounds, I had to wait for around 20 days for the final result. And after which I received a mail stating that they found an other suitable candidate for the role.
Preguntas de entrevista [1]
Pregunta 1
What is the difference between random Forest and a normal bagging approach?
Me postulé en línea. El proceso tomó 2 semanas. Acudí a una entrevista en Groupon
Entrevista
4 stage process.
1. Quick chat with HR (phone).
2. Technical screening (phone). Was very focused on theoretical basis of different ML techniques. Interviewer gave immediate feedback on areas to study up on.
3. Interview with business stakeholders (phone).
4. On-site interview.
Preguntas de entrevista [1]
Pregunta 1
Name the 5 assumptions made when using linear regression techniques
Me postulé en línea. El proceso tomó 1 semana. Acudí a una entrevista en Groupon (Chicago, IL) en jul 2019
Entrevista
After applying, I had a behavioural phone screen with a recruiter, followed by a technical phone screen with a data scientist (who seemed to be doing interviews exclusively now). I was told the next steps were a phone call with business stakeholders, followed by an on-site interview day.
Me postulé en línea. Acudí a una entrevista en Groupon (Chicago, IL) en abr 2019
Entrevista
The first step is the phone screen, I was asked lots of questions about the concept of statistics, especially the question relevant to the AB test; as well as common behavior questions
Preguntas de entrevista [1]
Pregunta 1
1. what is type 1 error?
2. what is type 2 error?
3. what is false positive?
4. what is p value?
