I spearheaded the development of a custom, comprehensive ERP system specifically designed to centralize and automate operations for an import company. Throughout the project, I maintained a high level of direct client contact to meticulously gather requirements and translate complex business logic—such as calculation of landing costs and multi-level approval flows—into high-performance APIs. My role involved overseeing the entire technical lifecycle of the platform, which integrates logistical container tracking, supply chain management, commercial billing, and strategic data analysis into a unified solution. I engineered specialized modules, including an intelligent purchase suggestion engine that cross-references sales history with inventory levels, as well as complex financial dashboards for multi-wallet cash flow and profitability analysis. To ensure absolute data integrity across critical records like supplier registration and client risk classification, I implemented rigorous validation schemas and a type-safe database architecture using Drizzle ORM and Neon. The final system features a modular React interface and a robust cloud infrastructure on AWS, providing the client with a scalable tool that even automates customer notifications via the WhatsApp Business API.

During my freelance tenure at GHLIA, a platform dedicated to adapting educational materials for students with disabilities and cognitive challenges, I refactored the Flutter codebase and enhanced content adaptation efficiency by resolving critical communication failures with the FlowiseAI API—which was integrated with Google Search, OpenAI, and Supabase buckets. I integrated MistralAI for OCR and document processing, designed and normalized the Supabase (PostgreSQL) database architecture, and improved the security and performance of the primary TypeScript and Go API. Additionally, I led the architectural migration to a modern stack, implementing a React frontend focused on UX/UI and performance through componentization and optimized Hooks, alongside a Python (FastAPI) backend to support advanced AI-driven educational solutions.

Developed a high-performance product catalog for Luma Festas, a leading party supply retailer in Brazil. Built a custom mobile/web optimized Next.js front-end integrated with a Strapi headless CMS back-end, enabling management of over 500 SKUs with real-time updates and a seamless user experience. Delivered a flexible, scalable solution tailored for a major event in São Paulo.

Maintenance and development of e-commerce platforms like HD Store, Logitech Store, and Creality Store, using Magento and NopCommerce. My daily tasks include building and optimizing pages with HTML, CSS, and JavaScript, developing and integrating REST APIs, configuring DNS and deploying applications, and collaborating on UI/UX improvements. I also incorporate advanced AI tools like OpenAI, DeepSeek, Perplexity, and Sonnet into my workflow to enhance efficiency and innovation. I'm always striving to improve my skills and deliver high-quality solutions.