Me postulé a través de una recomendación de un empleado. Acudí a una entrevista en Wayfair en dic 2021
Entrevista
Online assessment. Data challenge from codility. Takes a total of 90 minutes. They advise you to finish it in 2 business days. I applied in November and got this assessment before Christmas.
Preguntas de entrevista [1]
Pregunta 1
Four questions in total. Choose one from the first two. The first one is a SQL question. Have to use GROUP BY and ORDER BY and take care of null values. The third question is about a/b testing. They want to decide whether to remove a toll-free customer service. Provide the evaluation metrics. The last question is the one about an icecream shop.