Yijun Xie, Ph.D.

Senior Data Scientist

About Me

As a Data Scientist with a Ph.D. in Statistics, I bring extensive experience in machine learning, statistical modeling, and causal inference to the table. My proven track record includes developing and deploying advanced machine learning models and scalable data solutions, always with a focus on cutting-edge methodologies and technical innovations. I'm passionate about leveraging data to drive business decisions and create impactful solutions.

Work Experience

Senior Data Scientist - Growth

Stripe, Inc. | November 2023 - Present

  • Partnered with cross-functional teams to improve product adoption and activation
  • Built end-to-end pipelines for dynamic marketing email content and distribution
  • Led the development of scalable tools for experiment analysis

Senior Data Scientist - Retail Growth

Shopify, Inc. | February 2022 - November 2023

  • Delivered data products to drive user growth and subscription revenue
  • Led online and offline experiments targeting users across funnels
  • Developed causal-based machine learning models for marketing campaigns

Skills

Areas of Expertise

Machine Learning Deep Learning Predictive Modeling Bayesian Statistics Causal Inference Time Series Analysis

Technical Skills

Python R SQL GCP (BigQuery, Vertex AI, Looker) PySpark dbt Airflow PyTorch TensorFlow

Education

  • Ph.D. in Statistics, University of Waterloo, 2017-2020
  • MSc in Statistics, University of British Columbia, 2015-2017
  • BSc in Applied Mathematics, University of Notre Dame, 2012-2015

Blog

Unpopular, Biased, and most likely Incorrect

My occasional thoughts on ML engineering, statistics, and whatever catches my attention.

Contact

Feel free to reach out to me for any opportunities or collaborations.