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Guilherme Orlandin Ferreira

@guilhermeorlandinfer

Frontend Developer at Beta Online shipping a React and Next.js product with checkout integrations and a standardized component system.

Brazil

Message

At Beta Online, I develop a React and Next.js product with TypeScript, including a JavaScript-to-TypeScript migration and a standardized design system documented in Storybook.

I work on state architecture, forms, and REST API integrations, and have improved input performance and reduced re-renders on high-use screens. I also integrated payment gateways into checkout flows, including tokenization, processing, and failure handling.

At Beta Online, I standardized duplicated preview code in a repository consumed as a Vite package by other repositories. I also provided temporary Tech Lead coverage for prioritization and technical alignment.

Previously, at DFCom Software House, I built a point of sale module for sales, transactions, and invoices using React, Node.js/Nest.js, Prisma, and MongoDB. In freelance projects, I delivered CRM web applications with React and Node.js.

Experience

Work history, roles, and key accomplishments

Current

Frontend Developer

Current

Beta Online

May 2023 - Present (3 years 6 months)

Develops the product with React, Next.js, and TypeScript, including a JS to TS migration and standardization. Implements state-layer architecture, Storybook documentation, forms with Formik and React Hook Form, REST API consumption with Axios, and payment gateway integrations.

React Next.js TypeScript Context API Storybook MUI Formik React Hook Form Zod Axios JWT Payment Gateways Vite

Full Stack Developer

DFCom Software House

Jan 2023 - May 2023 (4 months)

Built a point of sale (POS) module with React, Node.js/Nest.js, Prisma, and MongoDB, including sales, transactions, and invoices. Managed state with Zustand and Context API, used React Query for cache and sync, and integrated REST APIs with Nest.js and Prisma.