Meta·Data Scientist·Technical Phone Screen
May 2026
Data Scientist interview at Meta focused entirely on Stories as a product case. Four questions, all interconnected, building from basic evaluation metrics up to cross-app performance gaps. The experiment design question at the end was the toughest part.
- How would you evaluate the performance of Instagram Stories as a feature?
- What criteria would you use to decide whether to do a full launch after a pilot?
- If Stories are cannibalising Feed posts, how do you respond to that?
- Facebook Stories gets roughly half the views of Instagram Stories. Why might that be, and how would you design an experiment to investigate it?
“Started with DAU lift and posting frequency, which felt safe.” The rest of the author's notes on Data Scientist interview at Meta, Technical Phone Screen round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.
View Post