Ho presentato la mia candidatura online. La procedura ha richiesto 5 settimane. Ho sostenuto un colloquio presso Groupon (Londra, Inghilterra) nel mese di ott 2018
Colloquio
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.
Domande di colloquio [1]
Domanda 1
What is the difference between random Forest and a normal bagging approach?
Ho presentato la mia candidatura online. La procedura ha richiesto 2 settimane. Ho sostenuto un colloquio presso Groupon
Colloquio
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.
Domande di colloquio [1]
Domanda 1
Name the 5 assumptions made when using linear regression techniques
Ho presentato la mia candidatura online. La procedura ha richiesto una settimana. Ho sostenuto un colloquio presso Groupon (Chicago, IL) nel mese di lug 2019
Colloquio
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.
Ho presentato la mia candidatura online. Ho sostenuto un colloquio presso Groupon (Chicago, IL) nel mese di apr 2019
Colloquio
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
Domande di colloquio [1]
Domanda 1
1. what is type 1 error?
2. what is type 2 error?
3. what is false positive?
4. what is p value?
