System Design for Freshers: Top 10 Core Concepts You Must Know Before Interviews

By Karan Patel · Published · 1 min read

Simplified intro to System Design concepts for college students and entry-level SDE roles. Learn Load Balancers, Caching, Sharding, and APIs.

Introduction to High Level System Design (HLD)

While freshers are primarily evaluated on DSA, understanding fundamental System Design concepts sets top candidates apart in tier-1 product interviews.

1. Load Balancing

Load balancers distribute incoming network traffic across multiple backend servers to ensure no single server becomes overwhelmed.

2. Caching (Redis / Memcached)

Caching stores frequently requested data in high-speed RAM memory, reducing database queries and response latency.