Meta interview notes, page 189 of 238

“This was the whole last 20 minutes and I kind of underestimated how much ground it would cover.” The rest of the author's notes on Software Engineer interview at Meta, Onsite - Cross-functional / Panel round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“The dedup step tripped me up at first.” 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 spent too long on the data model upfront and barely had time to talk through the geospatial indexing side, which is obviously the core of the problem.” The rest of the author's notes on Software Engineer interview at Meta, Onsite - System Design / Architecture round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“This one ate up a lot of time because I kept wanting to jump straight into the execution sandbox piece, which is the fun part, but the interviewer kept pulling me back to basics like auth flows and problem storage.” The rest of the author's notes on Software Engineer interview at Meta, Onsite - System Design / Architecture round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“The is_deleted filter is easy to forget under pressure and I almost 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.

“The bug was pretty obvious once I saw it, no visited tracking anywhere.” The rest of the author's notes on Machine Learning 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.

“My first instinct was just BFS every cell and try flipping each zero, which works but is way too slow for a 500x500 grid.” 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.

“I went with DFS first because it's the quickest to write under pressure, got through the base case fine.” 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.

“I picked a project where I was more of a coordinator than a true architect and I think that hurt me.” The rest of the author's notes on Technical Program Manager interview at Meta, Onsite - System Design / Architecture round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“Classic problem but the off-by-one logic when you find the first mismatch trips people up.” 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.