Perplexity interview notes, page 4 of 5

“I talked through shadow deployments and canary rollouts, then got into evaluation pipelines and monitoring for data drift.” The rest of the author's notes on Machine Learning Engineer interview at Perplexity, Technical Phone Screen round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“Sounds easy until you actually try to answer it without sounding like you just read the homepage.” The rest of the author's notes on Product Manager interview at Perplexity, Hiring Manager Screen round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“This felt deceptively simple.” The rest of the author's notes on Software Engineer interview at Perplexity, Technical Phone Screen round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“This tripped me up more than I expected.” The rest of the author's notes on Product Manager interview at Perplexity, Onsite - Product Sense / Strategy round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“I talked through a project where we were shipping design changes weekly and I was basically the go-between for eng and design.” The rest of the author's notes on Product Manager interview at Perplexity, Hiring Manager Screen round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“The scaffolding was already there which helped, but four parts means four chances to fall behind on time.” The rest of the author's notes on Software Engineer interview at Perplexity, Technical Phone Screen round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“I started with buffered writes and batching, then moved to write-ahead logging and memory-mapped files.” The rest of the author's notes on Software Engineer interview at Perplexity, Technical Phone Screen round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“This is a single question but it's basically six questions duct-taped together.” The rest of the author's notes on Software Engineer interview at Perplexity, 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 greedy deduction rule (earliest expiry first) is what makes this non-trivial.” The rest of the author's notes on Software Engineer interview at Perplexity, Technical Phone Screen round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“I started with a straightforward DFS for the cascade and it felt clean until they mentioned the efficiency constraint.” The rest of the author's notes on Software Engineer interview at Perplexity, Technical Phone Screen round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.