Domain Driven Design, complete software architecture, online course, instructor, whiteboard, colorful markers, formal attire, suit and tie, mature professor, experienced, enthusiastic, explaining complex concepts, diagramming tools, UML diagrams, entity-relationship models, bounded contexts, subdomains, core domains, interfaces, application layers, infrastructure layers, domain models, value objects, entities, aggregates, repositories, factories, unit tests, integration tests, mocking frameworks, test-driven development, behavior-driven development, continuous integration, automated builds, deployment pipelines, cloud infrastructure, virtual machines, containerization, microservices architecture, event-driven architecture, RESTful APIs, GraphQL APIs, gRPC APIs, service meshes, circuit breakers, API gateways, load balancers, autoscaling, monitoring dashboards, log aggregations, APM tools, DevOps practices, agile methodologies, Scrum boards, Kanban boards, backlog prioritization, sprint planning, retrospective meetings, software architecture patterns, event sourcing, command query separation, CQRS, data warehousing, business intelligence, ETL pipelines, big data analytics, NoSQL databases, relational databases, graph databases, cloud-native applications, serverless computing, FaaS, PaaS, IaaS, SaaS, enterprise software systems, complex distributed systems.