Hongxiang Wu developed and delivered end-to-end Customer Discounts Management for the betca-tpv-angular and betca-tpv-core repositories, enabling creation, retrieval, updating, deletion, and application of customer discounts across both front-end and back-end. He implemented RESTful endpoints and MongoDB persistence using Java and Spring Boot, integrating with Angular and TypeScript on the client side to support dynamic discount workflows and UI enhancements. Hongxiang also stabilized invoice integration tests and improved CI reliability by refactoring code and updating test suites. His work addressed business needs for flexible promotions while ensuring maintainable, full-stack solutions through robust API development, integration testing, and refactoring.