Tag: Interview Preparation

All the articles with the tag "Interview Preparation".

• System Design Interview: Design WhatsApp Chat System

  14 Feb, 2026

  By Pratik Bhuite | 9 min read

  Series: System Design Interview Series

  Learn to design a scalable chat system like WhatsApp. Covers real-time messaging, WebSocket, last seen details, and end-to-end encryption.

  • System Design Interview
  • System Design
  • Distributed Systems

• System Design Interview: Design Twitter News Feed

  13 Feb, 2026

  By Pratik Bhuite | 17 min read

  Series: System Design Interview Series

  Master the Twitter system design interview. Learn fanout patterns, timeline generation, hybrid approach, and scaling for 300M active users.

  • System Design Interview
  • System Design
  • Distributed Systems

• System Design Interview: Design Instagram Feed

  11 Feb, 2026

  By Pratik Bhuite | 20 min read

  Series: System Design Interview Series

  Master the Instagram Feed system design interview. Learn feed generation, fan-out service, pull vs push models, and scaling for millions of users.

  • System Design Interview
  • System Design
  • Distributed Systems

• System Design Interview: Basic Notification System (Email & Push)

  11 Feb, 2026

  By Pratik Bhuite | 30 min read

  Series: System Design Interview Series

  Master the notification system design interview. Learn how to build scalable email and push notification delivery, handle retries, and optimize for reliability.

  • System Design Interview
  • System Design
  • Notification System