Visa

“The pandas part was fine, filter by year, drop negatives, groupby user_id, sum, sort.” The rest of the author's notes on Data Scientist interview at Visa, 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 the obvious stuff, a container format with a header index, offsets per image, maybe a footer checksum.” The rest of the author's notes on Software Engineer interview at Visa, Onsite - System Design / Architecture round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“Knew it was Dijkstra the second I read the problem.” The rest of the author's notes on Software Engineer interview at Visa, Technical Phone Screen round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“Started with the brute force and they let me run with it for a bit before nudging me toward something better.” The rest of the author's notes on Software Engineer interview at Visa, Technical Phone Screen round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“I rambled.” The rest of the author's notes on Data Scientist interview at Visa, Recruiter / HR Screen round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“This is a big sprawling question and I kind of rambled at first.” The rest of the author's notes on Product Manager interview at Visa, 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 rambled a bit.” The rest of the author's notes on Software Engineer interview at Visa, Hiring Manager 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 to sort by the gain from doubling, which is the right direction, but I fumbled on figuring out the actual gain formula.” The rest of the author's notes on Software Engineer interview at Visa, Technical Phone Screen round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“Pretty standard gatekeeping question.” The rest of the author's notes on Software Engineer interview at Visa, Recruiter / HR Screen round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“Knew this one but fumbled the explanation a bit.” The rest of the author's notes on Software Engineer interview at Visa, Technical Phone Screen round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.