J'ai postulé en ligne. Le processus a pris 1 semaine. J'ai passé un entretien chez Amazon
Entretien
A 45 mins' phone call from one engineer asking about my research and several machine learning questions.
It took about 20 mins to detail my research and 2 questions for the machine learning.
Questions d'entretien [1]
Question 1
Question 1. How to deal with unbalance data where the ratio of positive and negative is huge.
Question 2. Estimate the disease probability in one city given the probability is very low national wide. Randomly asked 1000 person in this city, with all negative response(NO disease). What is the probability of disease in this city.
There are three rounds in total. The process begins with a coding round, followed by the main interview loop, where you will meet the team and discuss technical skills, experience, and fit.
First round is fun, second round, which is also the final round involved 5 sessions, with different focus. For some sessions, not be able to present my story completely, time was tight, and interviewers were rushing.
Thrilled to have accepted the offer — the process was tougher than I expected. The first round was primarily technical, where I tackled an A/B testing design question that required detailed metrics and sample size calculations. Later, I faced a SQL query challenge focused on tracking customer purchases over consecutive months. Funny enough, I had spent quite some time on PracHub digging into similar case studies, which really helped me approach these problems confidently. The final round included behavioral questions, and I felt well-prepared overall.
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