C4 component diagram for CU-23 Buscar y Filtrar Peritos—a marketplace inspector search feature in Mi Peritaje Platform. Users interact with a React SPA frontend containing a Search Form + Filters component and Results List component, communicating via REST API to a FastAPI backend. The PeritoController receives search requests, PeritoService validates criteria and applies business rules (excluding suspended and pending-review inspectors), and PeritoDAO retrieves matching inspector profiles from PostgreSQL. This layered architecture demonstrates clean separation of concerns: presentation, API, business logic, and data access. Fork this diagram to customize filter parameters, add caching strategies, or extend to support advanced search features like rating-based sorting. The pattern is ideal for multi-sided marketplaces requiring role-based filtering and compliance-driven data exclusion.