Hi, I'm Carlos

Design and implementation of a backend automation system using n8n for end-to-end patient flow management in private clinics. The system centralizes lead capture, appointment confirmation, automatic reminders, and post-consultation follow-up, reducing manual tasks and patient no-shows.

AWS cost optimization platform that automatically applies the most cost-effective reserved instances and savings plans based on workload. Leverages wholesale pricing and committed-use discounts to reduce AWS bills, continuously optimizing as usage patterns change—all in the background with no manual effort, approval queues, or guesswork. Cloudshim provides full visibility into cloud savings without requiring any manual action or engineering input; the backend automation engine applies optimizations automatically. My role: Full Stack Developer with Angular and Node.js.

Custom Shopify app development: integrated Marketing and Sales platform with CRM connected to the store. Abandoned cart recovery, automatic client tagging by product, orders and opportunity tracking. Email marketing, forms, ad spend control and WhatsApp Inbox. Automated notifications, campaigns and sales task assignment; opportunity follow-up and team-based commercial management. Built with React, Laravel and the Shopify ecosystem. One unified tool for sales, marketing and customer engagement—replacing multiple tools with a single solution tied to the online store.

Real-Time Error Monitoring and Fast Troubleshooting. My role: Front-End. Montrix is an application designed to help developers monitor errors in real-time and resolve issues quickly, minimizing application downtime. It offers detailed insights into what failed, where, and why, facilitating rapid recovery. Montrix integrates with Slack and email to provide instant notifications of critical issues, ensuring that development teams are promptly informed. No code changes are required—just connect your AWS account to start benefiting from efficient and effective error monitoring.

Live Chat Module Development for Inbox Platform Draft. My role: Full-Stack Developer. Designed and implemented a plug-and-play Live Chat feature within the existing Inbox platform. I architected both frontend and backend components to allow users to create a chat channel, customize a floating widget, configure multilingual support and multiple contact channels (Email, WhatsApp, Instagram, Facebook, Scheduling), and integrate analytics pixels. Finally, I built a script-generation tool so sites can embed the widget with a single copy-and-paste.

Development of a plugin for the creation of online exams. The add-on allows you to perform self-diagnoses of knowledge and competencies based on evaluations similar to those performed in Merit Competitions, State tests and Human Talent Selection Processes.

WordPress plugin to analyze, manage, and optimize script loading on your site. Take full control: deep page scanning discovers all loaded scripts (WP-registered, themes, plugins, external). One-click enable/disable per page or post with toggle switches. Advanced analysis shows dependencies, versions, file sizes, and loading position. Persistent management keeps disabled scripts tracked across reloads. Performance insights with auto MB/KB conversion. Compatibility mode for scripts loaded via non-standard methods. Smart warnings for missing scripts and configuration conflicts. Licensed under GPL v3.

Complete WooCommerce plugin that allows users to switch store currencies with support for automatic exchange rates (Fixer.io, ExchangeRate-API), IP-based detection, and multiple pricing zones. For administrators: configure multiple currencies, manual and API exchange rates, country flags, control purchases in selected currency, customizable widget, price zones by location, currency-based coupons, full WPML integration. For frontend: currency switching on shop, cart, and checkout; automatic detection by IP; widget styles (dropdown, buttons, flags); automatic price conversion for simple and variable products. Shortcode: [wct_currency_switcher].

Multiplatform mobile app that lets two people register, view, and analyze their income, expenses, and savings together. Dashboard with real-time metrics (total saved, income, expenses, net balance). Movement log with filters (income, expenses, savings), monthly analysis to identify saving patterns, and config (project alias, light/dark theme, password). Password authentication plus biometrics (Face ID / Touch ID) to protect financial data. REST API sync, responsive design with light and dark theme. Frontend: React Native (Expo); backend: Node.js, Express.js, SQLite, REST API, MVC architecture.

Corporate landing page for Mercantil RE, an international reinsurer with presence in 13 countries across Latin America and the Caribbean. Developed a multi-section, responsive landing from the ground up with HTML, CSS, and JavaScript to strengthen the brand's digital presence and communicate its value proposition: agility, technical excellence, and client-focused solutions. Delivered distinct views and sections including About us, Advantages, Business lines, Solutions, Clients & Allies, Group, Glossary, and Press—ensuring a clear, professional narrative and optimal user experience aligned with the company's positioning in the reinsurance market.

Robust REST API built with PHP/Laravel for a content management application. Includes authentication, data validation and automatic documentation.