Modern web architecture, domain-driven design, clean code, microservices, event-driven, scalable system, cloud computing, containerization, Docker, Kubernetes, RESTful API, JSON data format, secure authentication, authorization, Role-Based Access Control (RBAC), modular monolithic structure, layered architecture, presentation layer, application layer, business logic layer, infrastructure layer, database persistence, relational database, NoSQL database, caching mechanism, load balancer, SSL encryption, firewall protection, Linux operating system, virtual machine, DevOps pipeline, continuous integration, continuous deployment, agile development methodology, UML diagrams, sequence diagram, class diagram, component diagram, deployment diagram, technical debt reduction.