Freelancer profile translated to English.
Back to original languageAbout David
I am amobiledeveloper specializing inFlutter (Android/iOS)andnative Androidwith **Kotlin/Java**. I design and build modern mobile applications, focusing on good performance, a polished user experience, and maintainable code.
I have experience connecting apps with **REST APIs (Java / Spring Boot)**, I use **Firebase**, and I work with best practices like **Clean Architecture**, **MVVM**, and version control with **Git**.
I can help you to:
- Create an MVP from scratch.
- Develop new features in an existing app.
- Improve performance, code structure, or user experience.
I like to communicate clearly, plan work by milestones, and always deliver with quality and basic tests. I am looking for collaborations where I can add value from day one and continue growing with the team or client.
Spanish
Native or bilingual
English
Conversational
Remote only
Primarily works remotely
Experience
- SM - Proyecto colaborativoCo-founder and Full-Stack DeveloperSOFTWARE PUBLISHINGAugust 2025 - Today (10 months)Complete development of a sports social application as a collaborative project.Responsible for the backend withSpring Bootand the mobile app with **Flutter**, applying agile methodologies and good development practices.Currently in active development phase with a view to an initial launch.
- S2F - Proyecto personalFounder and DeveloperSOFTWARE PUBLISHINGJune 2025 - Today (1 year)Personal project based on my Final Degree Project.Development of a fitness app withFlutterand **Firebase**, managing the entire product lifecycle: design, development, integration, and deployment.
- Triplo Mobile S.L.Intern DeveloperSOFTWARE PUBLISHINGApril 2025 - June 2025 (2 months)Practical learning in mobile environments with **Flutter**, **Dart**, **Kotlin**, and **Firebase**. Participation in internal tasks, version control with **GitLab**, and familiarization with real workflows in Flutter projects.
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Education
- Higher Vocational Training Cycle in Cross-Platform Application DevelopmentTunivers Formación2025Ciclo Formativo Grado Superior Desarrollo de Aplicaciones Multiplataforma
Certifications
- Oxford Test of English (B2 Level)University of Oxford2024