
Maciel64
Full Stack Developer passionate about creating beautiful and functional web applications
Technologies I've Worked With
Featured Projects
A collection of personal, academic, for clients and technical tests projects I've worked on

Developed for Natalshopping, Meetlink integrates a web admin panel with touchscreen kiosks, allowing customers to request immediate assistance with a single touch. The system uses advanced communication technologies like WebRTC to connect users to support teams via real-time video, with support for Portuguese and Brazilian Sign Language (Libras).

Back-End Tech Challenge (NestJS/TypeORM): E-commerce system for async order processing using queues (Bull), following Clean Architecture. Requirements: REST endpoints to register orders (product, quantity, price, client), status/log updates via queue processing, filtered queries by status/date range. Evaluation: layered structure (entities, repositories, use cases), error handling, testability, and efficient queue integration, directly securing my position at Fusion Clinic.

Academic project developed for the Software Engineering course at UNP, in collaboration with the entire class. The system serves as a digital scheduler for the university's Integrated Health Center (CIS), allowing administrators to allocate time slots for partner municipalities (e.g., São Gonçalo do Amarante). Each city purchases hourly credits (e.g., 20h/month) converted into bookable slots by their representatives through the platform. The solution optimizes access to free healthcare for the population, ensuring financial control (contracted vs used hours) and preventing scheduling overlaps. Developed using agile methodologies, it features granular authentication, integrated calendar, and utilization reports.

Replicated Figma designs into responsive interfaces using React, Tailwind CSS, and advanced state management with useReducer + useContext. Built dynamic routing via react-router-dom, reusable component patterns, and pixel-perfect implementation. Modular architecture with custom hooks for shared logic, ensuring scalability. This project showcased modern React expertise and UI/UX precision, directly securing my position at Fusion Clinic.
Professional Experience
Yoobe.co
As a developer at Yoobe.co — a logistics platform connecting employees of major companies to corporate swag for performance rewards or celebrations — I contributed to the development and maintenance of the redemption e-commerce platform, supporting up to 10k simultaneous users. Leveraged Next.js, TypeScript, and TailwindCSS for performance optimization and UI enhancements, alongside tools like Docker, Git, and GCP for scalability. On the back-end, performed maintenance on the Ruby on Rails and Spree framework, ensuring seamless integration with the front-end. The platform served key clients like Pipefy, RD Station, and Yampi, maintaining stability during high-demand peaks.
Fusion Clinic Brasil
As the sole developer of Fusion Clinic — a medical room rental marketplace — I managed the migration from a third-party system to an in-house solution. Leveraged Next.js, TypeScript, and TailwindCSS for front-end development, and Laravel for back-end maintenance, implementing key features like PIX payment integration (via external gateway). The platform served 700 users, delivering significant gains in performance, security, and customer experience.
Academic Education
Certificates
Professional certifications and achievements that validate my expertise and skills
Validates advanced English proficiency for academic and professional contexts. Certifies ability to understand complex texts, communicate fluently, and engage in technical discussions. Internationally recognized standardized assessment.