They asked about challenging or conflictive situations I had faced and how I handled them, as well as questions about how I would improve a system or processes in places where I’ve worked.
Senior Backend Engineer Interview Questions
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When I was presenting my coding working, one important question was: Why did I choose this solution.
Q: Databases: - Indexes: how to create & maintain - Differences
Live Coding: Test given class with couple of methods (expectation is to first go black-box method and then dig into the code)
many questions about kafka partitions, groups, event streaming. So be prepared for many kafka questions.
Consider this scenario: The greatest sporting event in history is about to take place – The World ChessBoxing Championship! The highlight of the event will be the Celebrity Mega-Match on Mars between Elon Musk and Mark Zuckerberg! Everyone knows who would win the chess game……but who would dominate in the ring? The world anxiously awaits to see these two tech monsters slug it out on another planet! This elimination tournament will begin with 300 matches happening simultaneously at various venues around the world. Each match will also be simultaneously live streamed to millions of viewers via the RTheyAliensInc app. Your task is to design a high-throughput, low latency, resilient, and scalable backend system that will deliver notifications. Specifications: - The events that need to be fired during the match are: - Major piece captured - Check and checkmate - Power punch landed - KO / TKO - Each user can set in their preferences how they want to receive notifications: a browser pop-up, an email, or a mobile push notification. - Each time a new notification event is fired, the web application will process and deliver notifications in batches according to the platform chosen by users (web, iOS, Android). - During high loads, the queue of messages that needs to be processed can start to swell and affect delivery timing, so special care must be taken to prevent lag and resource contention. We need a System Design capable of scaling to 300 notifications/second average and 1000 notifications/second peak.
"What is IDisposable interface?" You don't know? Cut interview short at 5 minutes.
More than Technical Round HR Round questions was little difficult and unexpected one
Had to explain the software architecture in my current workplace.
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