Solicité el puesto a través de la recomendación de un empleado. Acudí a una entrevista en Amazon (New York, NY) en sept 2017
Entrevista
First interviewer cancelled interview 15 mins AFTER the original scheduled time. Pushed to next week, but the job description is gone. HR called to explain saying that I need to get rematch to a different team if I pass the interviews.
Second interviewer asked some basic machine learning questions without going deep into anything. Then ask me a very ambiguous question about how to predict products that can be sold next month. Then coding question.
Preguntas de entrevista [1]
Pregunta 1
Coding: Given a bar plot and imagine you are pouring water from the top, how to qualify how much water can be kept in the bar chart.
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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