Developed new endpoints for the Document Translation API 2025-12-01-preview within the Azure/azure-rest-api-specs repository, expanding the REST API to support advanced document translation workflows. Focused on API development and specification design, the work involved updating the OpenAPI specification in JSON to introduce additional endpoints and parameters, enabling programmatic translation requests aligned with enterprise needs. The implementation strengthened the API’s design and improved collaboration workflows, making translation capabilities more reusable across Azure services. This contribution addressed the evolving requirements for document translation by enhancing the API’s extensibility and maintainability, reflecting a methodical approach to specification-driven development and cloud integration.