Alvaro D.
Junior Mobile & Web Developer
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Alvaro D., a Mobile & Web Developer based in Guatemala City, is currently honing his skills while pursuing a degree in Systems Engineering at Universidad Mariano Gálvez of Guatemala. With hands-on experience in mobile application development using React Native, he specializes in creating practical solutions for businesses. In his current role at Comercios Universales, Alvaro develops mobile applications like the "Sistema de Permisos Laborales," utilizing Firebase Firestore and REST APIs to manage employee absences effectively. He excels in implementing complex business logic, ensuring robust authentication, state validations, and bug fixes. His proficiency with tools such as Git & GitHub ensures secure version control and credential management. Simultaneously, Alvaro handles high-volume enterprise billing, coordinating efficiently within administrative systems. His technical acumen and ongoing education equip him to contribute valuable technological advancements.
Experience
Software Developer
Comercios Universales · 2026 — PresentDeveloped the mobile application 'Labor Permission System' using React Native for managing employee permissions and absences. Integrated with Firebase Firestore through REST API for real-time data storage and querying. Implemented complex business logic, including calculations for permission days, half days, supervisor overrides, and IGSS suspension flows. Managed authentication, state validations, and addressed critical bugs in production. Utilized GitHub for version control and secure credential management.Billing Agent
Comercios Universales · 2024 — PresentHandled and processed business billing with a high volume of transactions. Coordinated administrative systems and worked with various internal departments.
Skills & Expertise
Education
- Bachelor of Information Systems EngineeringUniversidad Mariano Gálvez de Guatemala