Freelancer profile translated to English.
Back to original languageAbout Mario
As a freelance fullstack developer, I design, develop, and maintain web and mobile applications, working on both the frontend and the backend. I implement intuitive and responsive interfaces, develop APIs, and manage databases, ensuring performance, scalability, and security. I collaborate with clients to understand their needs, offer customized solutions, and optimize processes using modern technologies. I also perform testing, debugging, and continuous updates to ensure functionality and the end-user experience.
English
Native or bilingual
German
Basic
Spanish
Native or bilingual
Can work on-site
Madrid (up to 50km)
Experience
- GENDESK GMBHSoftware Developer / Project LeaderTECHMarch 2025 - June 2025 (3 months)Berlin, Germany• Development from scratch of a web application for the management of reagents and the warehouse of a laboratory.• In charge of requirements analysis, technical design, frontend and backend development, and database integration.• Direct coordination with the laboratory manager and technical decision-making with the management team, leading the technical direction of the project.• Technologies: MongoDB, MySQL, HTML, CSS, JavaScript, React, Node.js.
- CARCAMOVIL S.LSales AgentRETAIL (SMALL BUSINESS)August 2023 - February 2025 (1 year and 6 months)Madrid, Spain• Personalized sales assistance, focused on satisfying the specific needs of each client.• Adaptability to different consumer profiles to guarantee a tailored shopping experience.• Maintenance of an organized and clean work environment, reflecting professionalism and efficiency.
- I.E.S BUTARQUEAssistant in audiovisual productionsFILM AND AVJanuary 2021 - December 2021 (11 months)Madrid, Spain
- Support in the preparation, assembly and transport of technical equipment.
- Assistance to cameramen, sound engineers and production staff.
- Collaboration in the installation of lights, cameras and microphones.
- Organization and control of materials during filming.
- Maintaining order and logistical support on the set.
- Verification that the equipment is ready and in correct working order.
- Coordination of minor tasks to facilitate the work of the creative team.
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Education
- Higher Degree in Multiplatform Application DevelopmentI.E.S LUIS VIVES2025Grado Superior en Desarrollo de Aplicaciones Multiplataforma
- Secondary School (ESO) and Baccalaureate (ScienceI.E.S BUTARQUE2022Escuela Secundaria (ESO) y Bachillerato (Ciencias