Master distributed systems architecture. Scalability, Microservices, Message Queues, and vast database optimizations.
Deep dive into TCP vs UDP, HTTP vs over grpc, WebSockets, and DNS resolution paths.
Vertical/Horizontal Scaling, SQL vs NoSQL, Sharding partitions, Consistent Hashing techniques, and CAP Theorem biases.
Event-driven Architectures with Microservices, Message Queues (Kafka), CDNs configurations, and API Rate Limiting algorithms.