La procedura ha richiesto 4 settimane. Ho sostenuto un colloquio presso Yelp
Colloquio
This was for yelp canada. Short phone screen with recruiter. She told me immediately about going thru to the second stage which was a video call with a DS manager. Did'nt go past the second stage but the 3rd and final stage is apparently a virtual onsite consisting of 4 or so individual interviews with different DS and product people.
FEEDBACK: I was told in the phone screen that the second stage would test technical & communication skills plus business product intuition. The interview was totally academic and almost seemed like they were looking to do a checkbox approach. Nothing too sour though since its understandable, maybe that makes it easier for them to be objective. Plus the interviewer was very nice and supportive as well as patient.
Domande di colloquio [1]
Domanda 1
1. What is a sql join
2. Is it possible for a left join to give the same result as an inner join, if yes, how
3. What is sql where,having statement
4. Whats a union, diff between union and join
5. How would you determine if a coin is fair if it gives 55 heads on 100 tosses
The interview ended with a sql question; had to write a query about some lame open ended analytical situation.
Ho presentato la mia candidatura online. Ho sostenuto un colloquio presso Yelp (Calgary, AB) nel mese di ott 2022
Colloquio
First Round was Hackerrank - Two question on SQL and one on Python. The SQL questions were involved using joins. Level was Leetcode medium. The Python question was more logical. No knowledge of data structures is required you need to understand the question and come up with a logic. After you clear the hackerrank round, you proceed to virtual interview with the managers.
Domande di colloquio [1]
Domanda 1
A yelp specific SQL Question based on joins, group by etc How do you decide how long to run an A/B test?
Ho presentato la mia candidatura online. La procedura ha richiesto 2 mesi. Ho sostenuto un colloquio presso Yelp (Vancouver, BC) nel mese di lug 2022
Colloquio
I had 3 rounds - (1) Hackerrank test, (2) Technical DS interview, (3) Virtual on-site interview comprised of 2 technical rounds and 2 non-technical rounds.
The recruiters replied promptly and the whole process was smooth.
Ho presentato la mia candidatura online. Ho sostenuto un colloquio presso Yelp (Amburgo)
Colloquio
After applying, I was contacted within a few days by a recruiter for an approximately 30 min online screening. While the recruiter was nice, she didn't seem overly interested in learning more about me as a person or my background.
Nonetheless, I very quickly received an invitation for an online technical interview with a senior data scientist located in the US. This interview lasted approximately one hour and purely consisted of technical questions about topics such as data manipulation in Python/Pandas, statistics, SQL, etc. For most of them, we used a shared browser-based text editor. Frustratingly, we had some connection issues which made communication difficult. While I tried to check my own connection but couldn't find any problems, the interviewer mostly chose to ignore the issue. Most questions were not overly difficult, but the connection issues made it hard for me to concentrate on them properly.
A few days later, I received a standard template email informing me that they would not move forward with my application. No reasons for this decision were provided. Further, they explicitly stated that they are unwilling to provide any feedback. Given the amout of time that a candidate has invested at this point, I find this very disappointing.
Domande di colloquio [1]
Domanda 1
Manually implement a function in Python that returns the standard deviation of an input list of numbers.