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URL Shortener System Design
Design a scalable URL shortener like Bitly or TinyURL with detailed architecture, API design, database schema, caching strategy, and scalability considerations.
Notification Service System Design
Design a multi-channel notification service for email, SMS, push and in-app messages.
API Gateway System Design
Understand API Gateway responsibilities in microservices architecture.
Java 8 Features
Important Java 8 features every backend engineer should know.
Java 17 Features
Important Java 17 features for modern enterprise applications.
Java 21 Features
Java 21 features useful for modern backend engineering.
Spring Boot REST API
Build clean REST APIs using Spring Boot.
Spring Boot Security OAuth2
Secure Spring Boot APIs using OAuth2 and JWT.
Top 20 System Design Interview Questions
Master the most common system design interview questions asked at FAANG companies with detailed solutions, trade-offs, and best practices.
Design Netflix - Video Streaming Platform
Learn how to design a scalable video streaming platform like Netflix, handling millions of concurrent users, content delivery, and personalized recommendations.
Design a Parking Lot System
Learn how to design a parking lot system with object-oriented principles, handling multiple vehicle types, parking spots, and payment processing.
CAP Theorem - Understanding Distributed Systems
Master the CAP theorem and learn how to make trade-offs between Consistency, Availability, and Partition Tolerance in distributed systems.