quantitative analyst / senior data analyst / data scientist

Olga Berezovsky


Passionate, product-oriented data analyst who loves to work on great products and tackle difficult problems.

My vision

I want to change the way you think about data analysis. Data by itself doesn't bring any value. I use sophisticated data processing and transformation tools—combined with passion, creativity, and analytics—to tell a story with data that reveals its value and relevance. By performing data acquisition and developing user insights, I drive recommendations that can shape your product and maximize its value.


Product Development:

  • A/B and multivariate testing experiment setup & evaluation
  • User growth and engagement - scaling MAU, DAU
  • User retention and churn measurement and tracking
  • User acquisition strategy development
  • Data Science and Data Engineering:

  • Predictive modeling
  • Testing experiment design
  • Data modeling and building forecasts and prediction models
  • Developing and maintaining ETL, stored procedures
  • Schema design and dimensional data modeling

quantitative user profile analysis forecasting modeling user acquisition user retention user growth user segmentation product testing experiment setup & evaluation cohort analysis qualitative research text analysis long-term trends analysis lifetime value estimation subscription-based model analysis regression models

Recent analytics projects

  • Making recommendations for optimising email programs
  • Uncovering user behavior by conducting user cohort analysis
  • Documenting RedShift Schema and Data Warehouse maintenance
  • Building forecast time series to predict user and revenue growth
  • A/B testing products, which includes experiment setup and evaluation
  • Completing Multivariable experiment for CTA testing
  • Developing user segments quantitative profile
  • Creating dashboards (Chartio, Tableau, Amplitude, Mixpanel, Looker, etc) and visualizations (RStudio, R ggplot2, Python Pandas)

Recent publications

connect with me

Linkedin My Blog GitHub GitLab