Freelancer profile translated to English.
Back to original languageAbout Carlos
Applied AI, Low-code Automation, and Custom Full-Stack Web Development | Sovereignty, Security, and Scalability
Looking for a profile to take your technology project from theory to practice, combining AI, automation, cloud, and web development without complications, and that brings real value from day one?
I am **Jean Carlos Romero Marín**, your ally if you seek a real leap in efficiency, innovation, and control over your systems, data, and processes. I help startups, freelancers, SMEs, and companies looking for innovative, robust, and scalable solutions, anticipating trends and applying the latest technology so your business is not only efficient but also sovereign and secure.
How can I help you and what do I bring to your business?
Custom backend & frontend development: Node.js, React.js, Next.js, PHP, REST API integration, microservices, Figma UX/UI design, synchronization and integration of internal and external systems.
Data & Reporting:I centralize and connect all your data sources (SQL, MySQL, XML, CSV, JSON, TXT), create visual dashboards and advanced reporting for agile and effective decision-making.
AI and LLMs Integration:OpenAI, GPT, Claude, Llama, Gemini, Mistral... I develop chatbots, virtual assistants, intelligent agents, and generative AI automation systems tailored to your business.
Low-code/No-code Automation:n8n, Make, scraping, bank integration (GoCardless, Stripe, Wise, Redsys), process automation, repetitive tasks, and total connectivity between your tools.
Web, App & Mobile Development:XCODE, VS Code, WordPress, Prestashop, Elementor, WooCommerce, custom web and mobile applications, always with a modular, scalable, and secure approach.
Digital Sovereignty and Cybersecurity:I help you gain total control over your data, your infrastructure, and the security of your projects (Cloudflare, IONOS, OVH, GDPR).
Spanish
Native or bilingual
English
Conversational
Remote only
Primarily works remotely
Experience
- SERVICIOS INDUSTRIA DEL AUTOMÓVIL,S.A.U
On Malt
Development of the online store website: recaplus.comSeptember 2019 - October 2019 (1 month)Madrid, EspañaDevelopment of the online store recaplus.comTechnologies used: PrestaShop.Information migration: Woocommerce to PrestaShop. - JAVIER MANUEL GARCIA PANODevelopment of the website limpiezasluchosl.comAugust 2019 - August 2019 (1 month)Madrid, EspañaDevelopment of the website limpiezasluchosl.com
- REPSOLVPN MigrationTELECOMMUNICATIONSJune 2018 - January 2019 (7 months)Madrid, SpainMigration of users to a new connection system for teleworking users.
Reviews
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Education
- Computer Systems EngineerUNIMAR - Universidad de Margarita2016