Freelancer profile translated to English.
Back to original languageAbout Sergio
Spanish
Native or bilingual
English
Conversational
Can work on-site
Sevilla La Nueva (up to 50km)
Experience
- Proyectos PersonalesWeb DeveloperJune 2024 - Today (2 years and 2 months)Development of full-stack web applications with JavaScript, React, PHP, and Node.js. Creation of REST APIs, management of CRUD operations, and frontend-backend communication. Modeling and management of MySQL, MongoDB, and Supabase databases. Implementation of secure authentication with JWT and bcrypt. Version control with Git/GitHub and application of good development practices.
- ZaitecWeb Developer InternMarch 2025 - June 2025 (3 months)Development of a ticket sales web application with HTML, CSS, JavaScript, PHP, and SQL. Implementation of backend logic, CRUD operations, and database connection. Use of XAMPP as a local environment and Git/GitHub for version control. Collaborative work following agile methodologies.
- Supermercado AhorramásCashier-StockerJuly 2024 - Today (2 years and 1 month)Villanueva de la Cañada, SpainTeamwork with stockers and checkout. Customer service and performance of various tasks.
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Education
- Higher Vocational Training2025Grado Superior
- Modern JavaScript CourseUdemyCurso JavaScript Moderno