Worked on the vtex/openapi-schemas repository to deliver an upgrade of the External Promotions Protocol API to version 1.1, focusing on enhancing integration between VTEX native promotions and external providers. The approach involved designing new API endpoints and updating OpenAPI definitions to support hybrid orchestration, correlation IDs, and custom fields in JSON requests. Improvements included end-to-end tracing capabilities and comprehensive updates to developer documentation and Postman collections. By aligning technical changes with business goals such as faster partner onboarding and improved observability, the work promoted smoother partner integrations and reduced friction for external providers, leveraging skills in API design and backend development.