Sebastian Valencia
/seb / sebo/
I work at 
Ramp.
Previously Data Scientist @ 
Shopify.
Earlier @ 
1Password, 
theScore, 
Loblaw Digital.
Studied Math at 
University of Waterloo.
I like shaping products, with and without data.
Projects
- Building the Best Value Soccer TeamOptimization, Operations Research
- Kalshi vs. PolymarketDashboard
Writing
- Why Ratio Metrics Break A/B Tests and How Linearization Fixes ItExperimentation, Statistics