SDE Interview Experience at Apple London

Hi I am from Bangalore, India. I recently cleared the interview for SDE role at Apple London. Level will be ICT3 and offer not yet disclosed. Hope my experience helps someone. All the best. I applied for a SWE(ICT in Apple) role about ~8 months back which suits very much to my experience and suddenly out of the blue recently got the mail from Apple Recruiter. I was doing lots of interviews on and off for the last 1 year (>40 companies and >100 interview rounds) and solved over 800 LC(200/400/200) and studied lots of System Design books and blog posts (Martin Klepperman book Designing Data Intensive Applications, Head First Design Patterns, GoF patterns, SOLID patterns, Paxos/Raft papers, Bitcoin in 3Blue1Brown channel(bonus), Read about ReadWriteLocks, ReentrantLocks, StampedLock, Condition, Semaphore, Bounded Buffer problem etc) Round 1: I had first round of Technical screening by the Team Manager and Sr Developer to discuss about my past projects and teams and what I have worked on and my experience around it. I was asked to explain about interesting problem I have faced and how I solved it. There were many good follow up questions involved. Round 2: Once they are satisfied with my experience I have been called for Coderpad round to check my coding skills. (I did all the interviews in Java). Question was like normal LC medium problem (like LRU cache) and follow up was more of problems due to concurrency and how yo handle it. Apple cares a lot about Concurrency issues. Read about more about it and be confident about the issues and how to overcome that. (Like why we need to call wait() instead of looping over indefinitely. Hint: CPU utilization, why we need to put the wait in while loop instead of if(condn) Hint: Spurious wakeups) Once I am done with the round feedback was positive and recruiter wanted to schedule 5 rounds of interviews back to back on same day but I asked for separate day for 3 coding & programming related rounds on one day and system design and cultural round on one day. Round 3: Programming round was more of testing knowledge on Java and DS and fixing concurrency issues in the code (implementation rather than just explaining). I did okayish here but explained and coded almost well Round 4: DS and Algo round. It was good question where there is a code skeleton already there and we have to reuse and add more functionalities to it. More of real life problems rather than common LC. Check problems in Leetcode starts by Design underground transport system, Design Autocomplete System, etc.) Round 5: Problem solving round. Some random questions will be asked to check out problem solving ability like find median in a stream, read file using read4 method, etc Round 6: System Design. Basic System Design and focus is on High level design and then some component has to be tested deeper further. Keep in mind about security and compliance, privacy etc. Apple cares about these a lot Round 7: Cultural round: More on some situations I have faced during work and how I handled those not entirely technical. How I have showed impo to privacy, security while creating a product After 3 or 4 days recruiter reached out and told I passed the interviews and did well on all the rounds. But no information yet on the level and salary yet. I hope I did well for ICT3 level. I hope it will be helpful for everyone. Everyone reading this you will get your dream job soon. All the best and give your best. 😊 Current TC : 38L YOE: 3.6 #interviewquestions #interviewexperience #interview #apple #engineering #software #swe