Developed and delivered end-to-end Customer Discounts Management across both the betca-tpv-angular and betca-tpv-core repositories, enabling full CRUD operations and seamless application of discounts during checkout. Leveraged Angular with Angular Material for the front-end interface and Spring Boot with MongoDB for the backend, implementing REST APIs, DTOs, and service layers to support business rules such as customer eligibility and minimum purchase requirements. Enhanced code quality through targeted refactoring and stabilized continuous integration by addressing failing invoice integration tests. Demonstrated proficiency in TypeScript, Java, and integration testing while ensuring maintainable, reliable workflows for customer promotions and streamlined checkout processes.