Affirm interview notes, page 2 of 4

“Pretty standard opener.” The rest of the author's notes on Data Scientist interview at Affirm, Hiring Manager Screen round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“This took me longer than it should have to set up the month truncation logic correctly.” The rest of the author's notes on Software Engineer interview at Affirm, Technical Phone Screen round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“I jumped straight into acquisition tactics and kind of forgot to talk about retention, which is probably where the real leverage is.” The rest of the author's notes on Product Manager interview at Affirm, Onsite - Product Sense / Strategy round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“Went surprisingly clean.” The rest of the author's notes on Software Engineer interview at Affirm, Onsite - Coding / Algorithms round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“I jumped straight to greedy, pairing the biggest creditor with the biggest debtor each round.” The rest of the author's notes on Software Engineer interview at Affirm, Technical Phone Screen round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“This one had way more moving parts than I expected.” The rest of the author's notes on Software Engineer interview at Affirm, Technical Phone Screen round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“The math itself is not hard once you see it.” The rest of the author's notes on Data Scientist interview at Affirm, Technical Phone Screen round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“This was a sprawling question and I underestimated the scope at first.” The rest of the author's notes on Software Engineer interview at Affirm, 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 is the kind of problem that looks straightforward until you start thinking about edge cases like duplicate transactions, partial matches, or timing windows.” The rest of the author's notes on Software Engineer interview at Affirm, Technical Phone Screen round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“The groupby part was fine, agg with a dict of functions is second nature at this point.” The rest of the author's notes on Data Scientist interview at Affirm, Technical Phone Screen round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.