Meta interview notes, page 129 of 238

“I started with the easy part, explaining why mean is misleading here and median is more representative, but then kind of fumbled when they pushed on P1 and P99 specifically.” 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.

“Cycle detection in a directed graph, basically.” The rest of the author's notes on Software Engineer 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.

“The key constraint is that the array is immutable and queries happen repeatedly, so preprocessing is the move.” The rest of the author's notes on Software Engineer 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.

“The second half is what gets you.” The rest of the author's notes on Software Engineer interview at Meta, Onsite - Behavioral / Leadership round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“I talked about prompting and tweaking AI-generated code at work, which felt like a reasonable answer at the time.” 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.

“I knew this cold, or thought I did.” 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.

“I went straight to user friction and conversion rates, which felt right, but I missed the trust and safety angle for way too long.” The rest of the author's notes on Product Manager interview at Meta, Onsite - Product Sense / Strategy round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“Spent the first minute just trying to figure out what Facebook Sports even is as a product surface, which probably wasn't a great look.” The rest of the author's notes on Product Manager interview at Meta, Onsite - Product Sense / Strategy round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“This one sprawled in ways I didn't fully anticipate.” 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.

“The country join tripped me up at first because you pull country from the users table but the experiment table only has user_id.” 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.