Explore Categories

APIs, authentication, databases, microservices, and backend frameworks in real production setups.

Core problem-solving skills covering arrays, trees, graphs, dynamic programming, and interview patterns.

SQL, NoSQL, indexing strategies, transactions, and data modeling at scale.

CI/CD, Docker, Kubernetes, cloud fundamentals, and infrastructure automation.

Debugging, code reviews, testing strategies, and developer tooling.

Modern UI development using React, Angular, performance optimization, and UX patterns.

Coding rounds, system design interviews, behavioral prep, and company-specific patterns.

Object-oriented design, SOLID principles, UML diagrams, and real-world design problems.

Deep dives into Java, JavaScript, TypeScript, Python, and language internals.

OAuth, JWT, SSO, encryption, and securing modern applications.

Monoliths vs microservices, event-driven systems, domain-driven design, and trade-offs.

Design scalable systems: databases, caching, queues, sharding, and high-traffic architectures.