Igor Buzato
Valinhos, SP · Brazil
Web, mobile, AI and the backend behind it.
Senior Full-Stack Engineer · SuperFrete
Today I build SuperFrete's shipping platform with TypeScript, Node and React Native. Before that, I led telemedicine teams at Dasa, going from developer to Tech Manager. On the side, I put AI inside products and make systems talk to each other.
I've loved technology since my first clicks as a kid. I started as a developer, became a tech lead, then a Tech Manager, and happily went back to code as a senior engineer.
I like hard problems and owning projects end to end, from the technical decision to delivery. My favorite ground is the space between systems, people and teams, where a poor integration turns into a bottleneck.
Lately I'm especially into observability, deployment best practices, monorepos and micro frontends, smart proxies and automations that help teams ship with more quality and less friction.
Assistants and chatbots that understand natural language while keeping rules, calculations and permissions in the backend. Input and output guardrails, tools allowed per intent, and evaluation suites with adversarial cases before anything reaches production.
I connect systems that weren't built to work together, including REST and GraphQL APIs, health insurers, in-app payments and subscriptions, social login, maps, notifications, Brazilian e-invoicing (NF-e) and local printers driven by a cloud ERP.
Dashboards, management and internal tools that move customers, inventory, quotes, permissions and PDF and Excel reports out of spreadsheets.
React Native and Expo apps for iOS and Android, with pipelines that build, sign and publish to the stores with no manual steps. End-to-end tests and error monitoring along the way.
A shipping platform for online sellers. I work with TypeScript, Node, React Native and the React ecosystem, from the app to the backend.
Team management, technical leadership and consulting for the NAV Pacientes and NAV Pro telemedicine products at Latin America's largest integrated healthcare network. Fully remote, focused on digital transformation.
Web and mobile for Dasa with React Native, ReactJS, Svelte, Vue, Apollo Client, GraphQL, Jest and Detox. I also ran technical onboarding for new team members.
Complete systems for clients across many industries, with ReactJS, Angular, Node.js, SQL and NoSQL databases and continuous integration.
A health platform with telemedicine, test and vaccine scheduling, health history and insurer integration, on web, Android and iOS. NAV Pro brings real-time test results to healthcare professionals.
My roleDeveloper on the NAV Pacientes app, then Tech Manager for NAV Pacientes and NAV Pro.
Open NAVA nutrition app with an AI assistant that creates, looks up and explains meals and suggests ingredient swaps based on each person's meal plan. It also includes an app for assessors and an admin panel.
My roleAll of the chatbot's AI, from the agent pipeline in the backend (guardrails, tools, history) to the in-app conversation, plus the build and release pipelines for the apps.
Open NutriXpert
An ERP for small and mid-sized businesses with sales, inventory, Brazilian e-invoicing, finance and management in a single flow. One sale updates inventory, issues the invoice and creates the receivable with no retyping. Wynix Bridge, a Windows app, connects the cloud ERP to the store's printers.
My roleFounder. From the idea and features to implementation, testing and talking with users.
Open Wynix
An app for dog and cat routines, health and expenses, with vaccine and deworming reminders, a timeline, growth tracking, life-stage care, shared owners and cost tracking.
My roleFounder. From the idea and design to implementation, testing and publishing to the stores.
Open Mais que Pet
Sales and operations management covering customers, suppliers, inventory, custom quotes, permissions and PDF and Excel export.
My roleDeveloper of every module, integration and improvement.
Visit Oficina do CracháReact, Next.js, Svelte, Vue, Redux, Tailwind CSS
React Native, Apollo Client, Jest, Detox
Node.js, NestJS, Laravel, GraphQL, REST, Electron
OpenAI, OpenRouter, tool-using agents, guardrails, evals
PostgreSQL, MySQL, MongoDB, Firebase, Supabase
Docker, Kubernetes, AWS, GitHub Actions, Fastlane, EAS, observability