
Worked on the pagopa/p4pa-payhub-activities repository, delivering an end-to-end Unique Invoice Identifier (IUV) generation and validation system spanning activity, service, and DAO layers. Applied Java and Spring Boot to implement robust API endpoints, enhance sequence-number handling, and improve error management, with comprehensive unit testing using Mockito. Refactored code for clarity and maintainability, including updates to OrganizationService to return Optional types for safer API usage. Strengthened ingestion workflows by validating inputs and ensuring reliable status updates. Maintenance tasks included version control improvements, test organization cleanup, and SonarQube issue resolution, reducing data integrity risks and supporting more reliable backend operations.
December 2024 — pagopa/p4pa-payhub-activities: Delivered end-to-end IUV generation and validation across activity, service, and DAO layers, with unit tests and navigation format conversion; improved sequence-number handling and error management; performed targeted refactors for clarity and correctness. Strengthened API robustness by updating OrganizationService.getOrganizationByFiscalCode to return Optional<OrganizationDTO> with tests. Hardened ingestion flow: UpdateIngestionFlowStatusActivityImpl now validates inputs, returns boolean, with unit tests for valid/invalid inputs and nulls. Maintenance improvements: versioning, test organization cleanup, and SonarQube fixes. Business value: reduces data integrity risk in IUV generation, safer API usage, and more reliable ingestion workflows, with improved maintainability.
December 2024 — pagopa/p4pa-payhub-activities: Delivered end-to-end IUV generation and validation across activity, service, and DAO layers, with unit tests and navigation format conversion; improved sequence-number handling and error management; performed targeted refactors for clarity and correctness. Strengthened API robustness by updating OrganizationService.getOrganizationByFiscalCode to return Optional<OrganizationDTO> with tests. Hardened ingestion flow: UpdateIngestionFlowStatusActivityImpl now validates inputs, returns boolean, with unit tests for valid/invalid inputs and nulls. Maintenance improvements: versioning, test organization cleanup, and SonarQube fixes. Business value: reduces data integrity risk in IUV generation, safer API usage, and more reliable ingestion workflows, with improved maintainability.

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