Top 10 common backend system design questions

Top 10 common backend system design questions

Common backend system design questions for entry-level candidates focus on fundamental services and components. These include data storage (key-value stores, file systems), communication systems (chat, notifications), data processing (task queues, rate limiters), and application-specific designs (URL shorteners, e-commerce inventory, game leaderboards). These questions test understanding of scalability, data flow, and core system architecture principles.

What you will learn -

  • Understanding the Fundamentals of System Design
  • Building a Simple Key-Value Store in Java
  • Building a Robust URL Shortener Service with Java
  • Designing a Robust Task Queue System in Java
  • Implementing a Robust Rate Limiter in Java
  • Building a Basic Chat Application in Java
  • Building a Robust Logging System in Java
  • Designing a Robust Notification Service in Java
  • Building a Simple File Storage System in Java
  • Designing a Basic E-commerce Inventory System in Java
  • Designing a Robust Leaderboard System for Games in Java