The online assessment consisted of four questions on the CodeSignal platform: 1. The first question involved performing a series of simple operations on three given integers. 2. The second question provided an integer array representing the lengths of branches...
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I applied online for an infra track Staff Engineer position through a referral and was quickly scheduled for interviews. My first round was a phone screen, consisting of 15 minutes of behavioral questions and a coding problem. My virtual onsite was split over...
I interviewed for a Backend SWE position. The interview question felt like a variation of a LeetCode problem, but not a direct match. The problem description was quite lengthy. The question was: Given an array of function calls, return the most frequent call s...
### Question 1 I was given a sorted array `requestTimestamps`. Each timestamp represents a request. `windowLength` represents the length of the window time, and `maxNumber` represents the maximum number of requests the window can accommodate. If the number of...
I had a phone screen that consisted of 45 minutes of coding and 15 minutes of ML fundamentals. The coding question was a Candy Crush solver. **Part 1:** Given a grid with integers, if there are 3 or more horizontally or vertically adjacent matching integers, o...
I had an onsite interview for a Machine Learning Engineer position. **Phone Screen:** * LeetCode 528 **Onsite:** * Sliding window anagram * Data stream mean * ML design: Design a model to predict the probability of dislike of a Facebook newsfeed post. The inte...
I was asked two coding questions: 1. A general MapReduce problem: Given A = \[a,b,c] and B=\[d,e,f], how to use MapReduce to get C=\[a+d, b+e, c+f] 2. Context parallelization in terms of segment Q, K, and V. The interviewer asked about the block-wise attention...
I interviewed for a Staff SWE position. Here's a breakdown of my interview experience: **Round 1: Coding + System Design** The scenario was designing a Rental Car API. * Input: (longitude, latitude) * Determine if the location is in a premium area (returns tru...
The onsite interview consisted of two system design rounds and one coding round. I don't remember the exact coding question, but it involved a depth-first search (DFS). The two system design questions were: 1. Design a recommender system for Perplexity's disco...
The problem was to design an image feed that calls a backend API, loads images, supports infinite scrolling, displays loading indicators and error images, and supports offline viewing. The interviewer asked many frontend-specific details, including concepts I...
