Apple

For an Apple SDET interview, focus on practical, applied DSA patterns (Strings, Hash Maps, Stacks, Two Pointers, and Caching) that mirror real-world testing utilities, log parsing, and data validation. You do not need complex hard-level dynamic programming; you need rock-solid execution on core Easy/Medium problems with a strong emphasis on writing edge-case test assertions.

The interview process was straightforward and professional. I first had an introductory conversation with HR, followed by an interview with the hiring manager. They asked about my previous experience, relevant skills, and how I would handle different situations related to the role. The interviewers were friendly and gave me an opportunity to ask questions about the position and company.

Interview process was very smooth. It was well co ordinated. Gave details of all the relevant experience. Communication was also good. Waiting for next round to know more. It was a quick guide

There were multiple coding rounds and one managerial round planned for this role. Coding rounds were focussed on SQL and Python. They shared link of a coding platform which had questions on the left side and we can run the code on the right side.

The interview started with basic DSA questions. The interviewer first asked the classic “Add Two Numbers using Linked List” problem from LeetCode. I explained the approach using carry handling and traversing both linked lists simultaneously. They also discussed general linked list concepts like traversal and node manipulation. Then the discussion moved to system design. The interviewer asked me to explain the high-level system design of Instagram, including components like: * user feed generation * database storage * caching * load balancing * media storage * scalability handling for millions of users After that, they asked some computer architecture concepts related to the Apple M1 chip, specifically about: * L1 cache * L2 cache * L3 cache The discussion was around: * cache hierarchy * speed differences * why smaller caches are faster * how CPUs use caches to reduce memory access time Overall, the interview focused on: * DSA fundamentals * linked lists * system design basics * computer architecture concepts The difficulty level was moderate, with more focus on conceptual understanding and explanation ability rather than only coding.