theodor balan.

About

I’m a data scientist with a background in biostatistics and mathematics. I’m interested in causal inference, experimentation, survival analysis and machine learning. I mostly code in R, and am the author and maintainer of the frailtyEM package. I have a PhD from Leiden University based on methodological research in frailty models.

I currently work as a senior data scientist at Booking.com, focused on causal inference and experimentation for two-sided marketplaces. Before that I spent three years at Danone Nutricia Research building statistical and machine-learning solutions for early life nutrition and medical foods, and five years in academia at the Leiden University Medical Center.

For more info you can send me an email, check out some of my code on Github, my work & education history on LinkedIn, my peer-reviewed publications on Google Scholar or my occasional blog posts on Medium.