At an Agencia de Marketing Digital y Desarrollo de Software, I contributed to the development and maintenance of a WhatsApp CRM platform using Next.js. I integrated Redis and BullMQ for asynchronous campaign processing and implemented real-time notifications with WebSockets.
I also developed contact management and segmentation for thousands of contacts, taking Meta's WhatsApp Business Platform policies into account. I refactored role-based access control and implemented file uploads with Multer.
For Baby Sofia Boutique, I developed a custom point-of-sale system from requirements analysis through implementation. It included product, inventory, sales, billing, and cash management modules, with billing aligned to SAR Honduras fiscal requirements.
In a freelance IT consultant role for a law firm, I prepared technical recommendations to improve equipment performance and establish preventive maintenance practices.
