Phase 8: Security & Optimization
Hardening and optimizing production systems. Authentication, authorization, database tuning, and performance profiling for secure, fast applications.
Authentication & Authorization
OAuth 2.0, JWT, SSO, RBAC, ABAC. Securing access to your APIs and services.
API Security
Rate limiting, DDoS protection, WAF. Protecting your APIs from attacks.
Database Query Optimization
EXPLAIN plans, indexing strategies, query rewriting. Making your DB fast.
Connection Pooling
PgBouncer, ProxySQL. Managing database connections efficiently at scale.
Compression Techniques
Snappy, LZ4, Zstd. Reducing data size for storage and network transfer.
Performance Profiling
Flame graphs, bottleneck analysis. Finding and fixing performance issues.
CDN Optimization
Edge caching, cache invalidation, TTL strategies. Serving content fast globally.
Real-Time Communication
WebSockets, Server-Sent Events, WebRTC. Building live, interactive experiences.
Batching & Buffering
Write coalescing, read-ahead patterns. Optimizing I/O operations.
Probabilistic Data Structures
Bloom filters, HyperLogLog, Count-Min Sketch. Space-efficient approximations.