Worked on the ErasmusEgalitarian/educado-mobile and Educado-App repositories, focusing on stabilizing certificate workflows, improving backend reliability, and enhancing developer experience. Addressed certificate generation and display issues by refactoring API coordination and removing circular dependencies, using JavaScript and React Native. Improved database startup stability and added new API routes for user and institution data in Node.js and Express.js. Enhanced project maintainability by modularizing dependencies and updating documentation for local development. Implemented robust testing strategies with Jest and improved code quality through linting and refactoring. These efforts resulted in more reliable certificate issuance, smoother onboarding, and a scalable, maintainable project structure.