quantitative analyst
noun /ˌkwɒntɪtətɪv ˈænəlɪst/
  /ˌkwɑːntəteɪtɪv ˈænəlɪst/
(also informal quant)
 (finance)- a person whose job is to analyse a situation or an event, especially a financial market, by developing and using complex models based on mathematics and statistics
- Wall Street firms are hiring large numbers of quantitative analysts.