← Back to Directory

Apple interview notes, page 6 of 38

FAANG / Big Tech

Most of these Apple write-ups come from Software Engineers (212), then Machine Learning Engineers (85) and Data Scientists (32). The most reported rounds are the technical phone screen (217), the system design round (48), the product sense round (29) and the behavioral / leadership round (22).

372 interview notes · updated Oct 2026

Apple·Software Engineer·Technical Phone Screen

Apr 2026
Apple technical screen for a software engineering role, heavy on computer architecture fundamentals. The questions were more hardware-adjacent than I expected for an SWE position, which threw me a bit.
  • Given a fixed semiconductor process and no new circuit-level innovations, what architectural, micro-architectural, and logic-level changes can you make to improve performance (higher clock frequency or more operations per second)?
  • How do performance improvements at the architecture and micro-architecture level typically trade off against power and area?
  • Compare a ripple-carry adder and a carry-select adder for 32-bit addition: how does delay scale with bit-width for each, how do their areas compare, and when would you pick one over the other?

“This was broader than I expected.”

View Post

Apple·Software Engineer·Technical Phone Screen

Apr 2026
Apple SWE interview, just one question about what a full-stack developer is. Not much to report.
  • What is a full-stack developer?

“Pretty surface-level definition question.”

View Post

Apple·Software Engineer·Onsite - Behavioral / Leadership

Apr 2026
Interviewed for a product designer role at Apple, one behavioral question about creative problem solving. Short and to the point, not much else to report.
  • Tell me about a time you had to come up with an unconventional solution to a problem. How did you approach it?

“Pretty standard behavioral prompt but I blanked for a second trying to pick the right story.”

View Post

Apple·Data Scientist·Technical Phone Screen

Apr 2026
Apple data scientist interview with a pandas coding task on sales data. Pretty straightforward if you know your groupby and merge patterns, but the follow-up about ranking regions tripped me up a bit.
  • Using pandas, compute total revenue per store per day from a sales table, then merge it with a stores table to identify the top three regions by total revenue.

“The groupby part was fine, I've done that a hundred times.”

View Post

Apple·Software Engineer·Technical Phone Screen

Apr 2026
Apple data engineer interview, got a pretty classic coding question about primes. Nothing too wild but I fumbled the optimization part more than I'd like to admit.
  • Write a function that returns all prime numbers up to a given number n.

“Started with the naive approach, checking every number up to n by dividing it by all smaller numbers.”

View Post

Apple·Software Engineer·Technical Phone Screen

Apr 2026
Apple SWE interview that went deep into graph modeling and multi-objective optimization. Not a typical shortest path question, they wanted you to reason about tradeoffs between cost and stops simultaneously, which I wasn't fully prepared for.
  • Given a list of flight tickets between cities, design an algorithm to find the best itinerary from city A to city B. The 'best' means trading off total ticket cost against number of stops. How do you model this as a graph problem, what search strategy do you use, and how do you handle two competing objectives at once?

“This one wrecked me a little.”

View Post

Apple·Software Engineer·Technical Phone Screen

Apr 2026
Apple data engineer interview with a coding question focused on finding duplicates. Not much context to go on, but it reads like a technical screen.
  • Given a dataset or array, find all duplicate values.

“Classic problem but Apple has a way of making you second-guess the obvious solution.”

View Post

Apple·Software Engineer·Technical Phone Screen

Apr 2026
Apple SWE interview, one question about code quality. Not much to go on but it's the kind of question that sounds easy until you're actually in the room trying to say something that doesn't sound like you just read a Medium article.
  • How do you ensure code quality in your work?

“I rambled about code reviews and testing and probably said 'best practices' at least twice, which I regret.”

View Post

Apple·Software Engineer·Technical Phone Screen

Apr 2026
Apple SWE interview focused entirely on a prior LLM project, basically a deep technical autopsy of everything I'd built. No leetcode, no system design whiteboard, just them picking apart my past work for an hour.
  • Walk me through an LLM project you worked on: what problem it solved, why it mattered, and what your specific contributions were across the full stack (data, modeling, training, evaluation, deployment).
  • What were the key technical decisions you made during the project, and what trade-offs did those decisions involve?
  • How did you measure success on this project? What metrics did you use and what results did you actually achieve?
  • Describe the biggest technical challenge or incident you ran into during the project and how you handled it.
  • Looking back, what would you do differently if you were starting this project over?

“This was the core question and it ate up most of the session.”

View Post

Apple·Software Engineer·Technical Phone Screen

Apr 2026
Apple technical screen for a software engineer role, one meaty question about arbitrary-angle matrix rotation that ended up being more of a design conversation than a coding exercise. Took me a while to realize they cared more about the trade-off reasoning than the actual implementation.
  • Given an n x n matrix and an arbitrary rotation angle in degrees, rotate the matrix by that angle. The angle is not restricted to multiples of 90, so rotated cell centers land on non-integer coordinates. You need to decide and justify: the output grid shape (same size with crop/pad vs. expanded bounding box), the resampling method for non-integer source coordinates (nearest-neighbor, bilinear, bicubic), and how to handle out-of-bounds source cells. Then implement it and walk through the trade-offs.

“I went straight to coding and the interviewer stopped me pretty fast.”

View Post