I received an interview invitation from a Meta recruiter on LinkedIn for a Research Engineer position. I have over two years of experience in search, advertising, and recommendation system architecture and algorithms. **Phone Screen:** This round was a team ma...
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I had a coding phone screen with two questions: 1. Kth Largest Element in an Array (LeetCode 215) 2. Subarray Sum Equals K (LeetCode 560) - variant I solved both questions quickly, but not without small syntax errors. For the first question, I had a follow-up...
I had a coding screen with Meta, and I was asked the following two questions: 1. Find the left and right side view of a binary tree. 2. Find the longest increasing path in a binary search tree. The follow-up was how to implement this in a regular binary tree,...
I was asked two coding questions: * LeetCode 50 * LeetCode 680 with a follow-up involving performing the operation k times.
I had an onsite interview that covered coding, AI, system design, and behavioral aspects. In the coding round, I solved LeetCode 26 and LeetCode 329 and answered follow-up questions. For the AI-native random friend recommender question, I completed four questi...
I applied online and got an onsite interview directly without a phone screen, likely because I had passed a phone screen for another role previously, though that role was no longer available by the time I was scheduling the virtual onsite. **Round 1: Behaviora...
I was asked two LeetCode problems. They were both direct LeetCode questions. - LeetCode 207 - LeetCode 124
I received an online assessment after applying. The assessment was on CodeSignal and consisted of four questions: 1. Given an array and a pivot, calculate the number of elements greater than and less than the pivot. Return '>', '<', or '=' based on the relatio...
Here's my recent interview experience at Meta. **Background:** I have 7 years of experience, primarily in ML/AI infrastructure. Previously, I worked at a large company on data/ML infrastructure. Recently, I've been working on LLM agent/ML infrastructure/distri...
The assessment was similar to an in-memory database, and I was told there are similar questions online. The task was to implement add, delete, lock, and unlock operations for a record, using only 1-2 hash maps. I was told that the problem itself may have error...
