Solicité el puesto a través de la escuela superior o la universidad. El proceso duró 4 semanas. Acudí a una entrevista en Two Sigma (New York, NY) en ene 2020
Entrevista
OA, typical questions.
Next talk to an HR, asked about why interested in two sigma and briefly introduce two sigma to me.
Second phone call, asked about technical questions.
Then onsite, three rounds in the morning, tested about programming, statistics, and research. didn't make it to the afternoon.
Preguntas de entrevista [1]
Pregunta 1
Asked about a case study with time series analysis. Was not familiar with the terminology.
Discuss in an hour on how to predict house price starting with a initial dataset. Back and forth as the discussion go deeper. Discussed model choices, variable selection, and model validation, etc.
Preguntas de entrevista [1]
Pregunta 1
predict house price starting with a initial dataset
Envié una solicitud electrónica. Acudí a una entrevista en Two Sigma
Entrevista
OA: Three coding questions (Linear Interpolator, Linear regression of daily temperature by town, Efficient fitting of linear regression)
3 Technical Interviews (1 hour each): 1. Data Analysis; 2. Coding and Algorithms; 3. Domain knowledge for Phd or Core Statistics
Final round with 2-3 hiring managers and a senior manager from matched teams: combination of open-ended technical problems and behavioral questions
Purely behavioral round with HR team and a recruiter
Preguntas de entrevista [1]
Pregunta 1
First round technical interview: begin with some questions about stats/probability knowledge, and the core is an open-ended case study
Envié una solicitud electrónica. Acudí a una entrevista en Two Sigma
Entrevista
Three Technical:
Data analysis
- Approach to open-ended problem
o Paper, pen
- Ask interviewer if stuck
- Systematic manner:
o Creative ideas
o Technical proficiencies
o What sort of datasets
o What sort of features
o Technical / methodology
o Start with linear model first
- No code
Algorithms
- Hackerrank
o Short, simple and clean code
Core statistics / domain expertise
- Bachelor / Masters – core statistics
o Linear regression
o R^2
o T-stat
o How they are used
o Statistics foundation
- No code
Two more rounds of intern / hiring managers:
- Mainly technical, some behavioral
o Similar to data analysis
o More targeted towards their team
o Come prepared with questions
If well, 30 min technical interview:
- Logistical interview
30 min of senior meeting with Two Sigma:
- Cultural fit
o Behavioral mainly
o Maybe 1 technical
Team match in the spring for more accurate project matching
Tested on foundational knowledge
