Software Development
The lifecycle of modern applications.
Section titled “The lifecycle of modern applications.” SDLC & Methodologies The Software Development Life Cycle, Agile vs Waterfall, Scrum, Kanban, and integrating DevSecOps.
Build Tools & Artifacts Compilation, package managers across ecosystems, lock files, and artifact repositories like Nexus.
The 12-Factor App Methodology for building modern, scalable, maintainable cloud-native SaaS applications.
Design Principles Core principles for writing maintainable software: SOLID, DRY, KISS, YAGNI, and Separation of Concerns.
System Design
Section titled “System Design” Scalability & Load Balancing Vertical vs horizontal scaling, load balancing algorithms, autoscaling, and database scaling strategies.
Database Design & Replication SQL vs NoSQL, normalization, indexing, CAP theorem, sharding, and consistency models.
Caching Strategies Cache-aside, write-through, TTL, eviction policies, CDN caching, and Redis patterns.
API Design REST, gRPC, GraphQL, versioning, rate limiting, authentication, and backward compatibility.
Message Queues & Event-Driven Architecture Kafka vs RabbitMQ, pub/sub, delivery guarantees, idempotency, Saga pattern, and backpressure.
System Design Case Studies End-to-end walkthroughs: URL shortener, rate limiter, notification service, key-value store.