Candidatei-me por indicação de um funcionário. O processo levou 2 semanas. Fui entrevistado pela Instacart (San Francisco, CA) em mai. de 2016
Entrevista
I was referred by an acquaintance and quickly contacted by a recruiter. We had an initial chat where he was honest that my background was likely not technical enough for the role, but I was welcome to attempt the coding challenge. I did, and the coding challenge was a timed test mainly on predictive modeling.
After the test I was again contacted by the recruiter to set up a phone interview with the head of data science. During the phone interview it was clear the interviewer had spent time looking at my past work and asked highly detailed questions about my work, and how I may have gone about certain tasks differently.
Perguntas de entrevista [1]
Pergunta 1
How might you have optimized parameters for this model differently?
Faced a deep technical challenge during the interview, asked to design a personalization algorithm for product recommendations. I walked them through feature engineering and model choices, which stressed me out initially. Luckily, I realized the structure was almost identical to a problem I had explored on prachub.com while prepping. The interview progressed through a behavioral round where they focused on my previous experiences, and I ultimately received an offer, but decided to decline after careful consideration. Overall, it was intense but rewarding.
Fiz uma entrevista na empresa Instacart (Toronto, ON).
Entrevista
It was pretty straightforward. HR and then technicals. The technicals were a mix of statistics and math questions. Overall, it moved pretty quickly. My interviewer was quite late with no apology and in general not very friendly. I knew someone interviewing at the same time and they had a much better experience and recieved the same questions.
Perguntas de entrevista [1]
Pergunta 1
Suppose we wanted to launch 15-minute deliveries in a specific area where we already deliver. How would you statistically test the results?