The difference between junior and senior data scientists? Understanding what the numbers in your power analysis actually mean. Most analysts just plug 0.05 alpha and 80% power into a calculator and call it done. But senior data scientists know these aren’t magic numbers—they’re business trade-offs

Coaching update: Two clients just accepted senior data scientist offers at Uber after multiple interview prep sessions 🎉 Another client crushed technical rounds at Google, Instacart, and Stripe—currently in final rounds. The interview prep framework we use focuses on breaking down complex proble

Breaking down the EXACT SQL question that helped me ace Meta and Netflix coding data wrangling interview Starting a new series where I’m sharing the real coding challenges from my Meta & Netflix interviews — no fluff, just the actual problems they asked. This is how data scientists at top