Candidatei-me online. Fui entrevistado pela Two Sigma em set. de 2020
Entrevista
I went through a phone interview, a written test, and then an "onsite" interview which consisted of a sequence of 1 hour interviews for a day (programming and statistics). Some interviews were both.
Perguntas de entrevista [1]
Pergunta 1
What is a standard error? How do you calculate it? How do you calculate a regression coefficient for a multivariate regression?
Fiz uma entrevista na empresa Two Sigma (New York, NY).
Entrevista
It will be a phone interview first. They will ask you technical questions about probability/ statistics. The interviewer is friendly, but the question is not easy. The process is good.
Perguntas de entrevista [1]
Pergunta 1
There are 11 people, they want to make sure that every 6 of them can open a box. How many keys at least for each person should have? How many locks? (One key can only open one lock, but one lock can be opened by many keys)
Candidatei-me por indicação de um funcionário. Fiz uma entrevista na empresa Two Sigma.
Entrevista
First round: multi variable time series modeling
Virtual Onsite: coding + research + talk about a paper you read recently + statistics foundations
Very likely failed in statistics foundations.
Need more serious preparations to get through the position.
Perguntas de entrevista [1]
Pergunta 1
First round: multi variable time series modeling
Virtual Onsite: coding + research + talk about a paper you read recently + statistics foundations
Candidatei-me online. O processo levou 1 semana. Fui entrevistado pela Two Sigma (New York, NY) em nov. de 2023
Entrevista
Two rounds of probability theory followed by two rounds of coding. The probability theory round were consists of some puzzles, counting and Markov chains. They focused on random walks induced by certain real-life questions.
Perguntas de entrevista [1]
Pergunta 1
I do not remember the exact questions but it was heavily focused on Markov chains.
