Six years with React, Next.js, TypeScript, Node.js, and React Native, from architecture to delivery.
Marcos GulhottiMoreira Sales, Paraná, BrazilAvailable for opportunities
The tools I rely on most to design, build, and ship digital products.
Mar 2026 · Sep 2026
Senior Software Engineer · Freelance
Internal management system for a medical platform, built from scratch with React, Next.js, TypeScript, Node.js, and MongoDB. APIs for patients, scheduling, payments, and administration, with JWT, RBAC, Mongoose, and real-time notifications.
Projects
May 2026 · Jun 2026
Senior Software Engineer · Freelance
Real estate website built from scratch with Next.js, TypeScript, and Node.js. Reusable components, validation, API integration, and business rules for listings, with ownership of the architecture.
Nov 2022 · Mar 2026
Senior Software Engineer
Lead frontend developer in a pod, guiding the team and leading four internal SPAs for management and e-commerce with React, TypeScript, Node.js, and GraphQL. Standardized 30+ microservices, migrated legacy JavaScript to TypeScript and Vite, maintained internal libraries, and joined the core e-commerce move from Java to Next.js.
May 2022 · Nov 2022
Junior Software Engineer
Migrated the company website to React and TypeScript, built white-label mobile apps with React Native, and integrated the interfaces with backend APIs for a healthcare platform used by international clients.
Mar 2021 · May 2022
Technical Mentor
Technical mentorship for full-stack web development students. Created tasks and projects from scratch and reviewed code in JavaScript, React, TypeScript, Node.js, and Python.
Internal medical management system built from scratch: patients, scheduling, payments, and administrative workflows, with Next.js, TypeScript, Node.js, MongoDB, JWT, and real-time notifications.
Company: Liore·Mar 2026 · Sep 2026
Contributed to migrating the core e-commerce project from Java to Next.js, moving pages into the new project to modernize the application.
Company: Abercrombie & Fitch·Nov 2022 · Mar 2026
Internal management systems in a distributed architecture: pod frontend lead, four SPAs, 30+ microservices, and a migration from JavaScript to TypeScript and Vite.
Company: Abercrombie & Fitch·Nov 2022 · Mar 2026