Crystal Sierra



  • B.S., Mathematics (magna cum laude)
    University of Puerto Rico at Rio Piedras

Crystal Sierra joined Merlinos & Associates in 2020 new to the actuarial industry after graduating magna cum laude from the University of Puerto Rico.  She is currently pursuing a Fellowship designation from the Casualty Actuarial Society.  Prior to Merlinos, Crystal served as an intern at IBRIC – The Internship in Biomedical Research, Informatics, and Computer Science – where she worked on Biomedical Data Science Research.  Her experience includes: 

  • Studying causal graphs to seek insights about the causal mechanism and processes involved in breast cancer.
  • Applying theoretical mathematical knowledge in real data.
  • Data cleaning and Excel functions working with the data of more than 1,000 breast cancer patients and 3,236 discrete variables.
  • Finding 34 causal relations from the data using GFCI algorithm, and evaluating them with a domain expert, concluding in several relationships between variables.