My onsite interview for a Data Engineer role included the following: **General Coding:** The difficulty was between LeetCode Easy and Medium. I'm not sure if it qualifies as an algorithm question. * Merge Intervals * Word Count: Given a long sentence, list the...
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I had a phone screen with two coding questions: 1. **Interval Intersection Variant:** The problem involved finding the maximum number of overlapping intervals. There were two follow-up questions: * Find the number of overlaps at a given time. * Given a time pa...
I interviewed for an ad-related team. **Phone Screen:** I was asked LeetCode 636. **Virtual Onsite:** I had a system design round where I needed to design a system for promoting ads, including defining the DB schema. I was told to focus on their specific syste...
The question was similar to a variation of the LRU cache. The requirement was to avoid outputting identical logs within a short time frame (a time range was provided). There were many follow-up questions, such as how to delete data, how to handle concurrency,...
### Round 1: High Concurrency I was asked to design a class that would allow multiple users to report their latency. The system should then calculate and report the 99th percentile latency over a given period. ### Round 2: Coding I had to write code to process...
The interviewer asked me to optimize my code and improve its readability before pushing it to production. I finished 15 minutes early.
The problem involved parsing a board represented as an array of strings. Each string contains tiles separated by spaces, where each tile consists of a letter and 0-9 crowns. The task was to calculate the total score using the formula: (number of same tiles in...
I interviewed with Netflix in July. I applied at the end of March for several L5 positions and heard back from a recruiter in June. **Round 1: Recruiter Screen** This was a 30-minute interview. I was asked basic questions and about Netflix's culture. I reviewe...
I consider myself an average programmer. I spent five months preparing for the interview, dedicating 4 hours each weekday and weekend morning. My preparation included completing around 200 LeetCode questions. **Recruiter Screen:** This was an informal call ini...
I compiled a list of frequently asked system design questions at Meta, gathered from various online sources. I hope this helps others preparing for Meta interviews. The list includes: 1. Ad Click Aggregator 2. Instagram / Newsfeed 3. LeetCode (online coding ju...
