During December 2025, Estrada developed the API Keys Description Editing feature for the tensorzero/tensorzero repository, enabling users to update API key descriptions directly through an enhanced frontend interface. This work involved integrating React for the user interface, implementing backend logic in Rust to update PostgreSQL database records, and ensuring reliability with Playwright end-to-end tests. By allowing users to manage API key metadata themselves, Estrada’s contribution improved data accuracy and reduced the need for manual administrative intervention. The feature was delivered as a cohesive full stack solution, demonstrating depth in both frontend and backend engineering within a modern development workflow.