About Alfredo Rafael
English
Native or bilingual
Spanish
Native or bilingual
Experience
- Happy TicketsFullstack DeveloperTRAVEL AND TOURISMOctober 2024 - Today (1 year and 9 months)Zaragoza, Spain• Developed mobile applications and web solutions using Flutter for cross-platform development (Android and iOS) and HTML, CSS, and JavaScript for web frontend.• Implemented new features and optimized performance in mobile and web applications, ensuring a smooth and efficient user experience.• Built and managed the backend using PHP and MySQL, developing RESTful APIs for the integration of ticketing and event management systems.
- Ingenius CubaSystems EngineerSOFTWARE PUBLISHINGJanuary 2022 - January 2024 (2 years)Havana, Cuba• Led the development of Android mobile applications using Kotlin and Jetpack Compose, applying the MVVM pattern to achieve scalability and code maintainability.• Implemented CLEAN architectures using MVP and MVVM, ensuring a clear separation of responsibilities and facilitating unit and integration testing.• Developed APIs with Laravel and Spring Boot, managing databases in MySQL and PostgreSQL, optimizing performance through code refactoring and improved SQL queries.• Used Jetpack Libraries such as Room, LiveData, ViewModel, and Coroutines to enhance efficiency and state management in applications.• Set up CI/CD pipelines with GitLab, automating tests and deployments, which improved team efficiency and enabled continuous development.• Conducted testing with JUnit, ensuring code quality through automated testing.• Managed development under agile methodologies, specifically Scrum, organizing sprints, reviews, and retrospectives to ensure continuous value delivery.• Worked closely with UI/UX designers and multidisciplinary teams to create user-centric, intuitive interfaces using XML and Jetpack Compose.
- Cienfuegos,Freelancer DeveloperSOFTWARE PUBLISHINGJanuary 2020 - January 2022 (2 years)Cuba• Developed mobile applications using Kotlin and Java, applying best practices in CLEAN architectures like MVVM and MVP for scalable application development. Leveraged Jetpack Libraries such as Room, LiveData, ViewModel, and Coroutines to improve efficiency and state management in apps.• Created web applications using PHP, Python and Angular, with seamless integration of MySQL and PostgreSQL databases.• Applied agile methodologies like Scrum to streamline development workflows, fostering effective collaboration within multidisciplinary teams.
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Education
- Bachelor's DegreeUniversity of Cienfuegos2020Bachelor's Degree