Cássio Freitas
Software Engineer at CI&T
Porto, Porto, Portugal
Summary
🤩
RockstarCássio Freitas is a Senior Full Stack Software Engineer based in Porto with 5 years of experience building performant React and Next.js applications and scalable backend integrations. He currently crafts high-performance components for Inditex’s sustainability platform, connecting micro-frontends to Java Spring BFFs and leveraging feature flags with Growthbook. His background includes architecting internal tools and B2B e-commerce frontends with TypeScript, Redux/React Query, GraphQL and AWS, alongside Node.js API work. An active open-source contributor, he enhanced email UI components and preview tooling (syntax highlighting, copy and download) in the popular resend/react-email repo. Trained at Academia de Código and with an unfinished engineering degree in chemical engineering, he combines product-focused frontend craft with an analytical, systems-oriented mindset.
5 years of coding experience
Stackoverflow
1reputation
0reached
1answer
0questions
Github Skills (13)
javascript10
javascripts10
react10
jsx10
html9
css7
typescripts6
typescript6
typescript36
jestjs6
jest-js6
typescript26
typescript-types6
Programming languages (6)
Github contributions (5)
resend/react-email
Nov 2022 - Jan 2023
💌 Build and send emails using React
Role in this project:
Front-end Developer
Front-end DeveloperContributions:1 review, 26 commits, 15 PRs in 2 months
Contributions summary:Cássio primarily contributed to the development of React email components within the `resend/react-email` repository. They added and updated components such as `Section`, `Column`, and `Body`, including their corresponding tests and configuration files. The user also worked on the `CodeContainer` component for the preview section, adding features like code highlighting, copy to clipboard, and download functionality. The contributions involved modifying existing components and their tests to enhance the overall functionality and presentation of the email components.
reactjsreactemailemails
cassiorsfreitas/cassiorsfreitas.com
Jul 2021 - Feb 2023
Open source project created with Next JS + Vercel to generate static pages (SSG) through getStaticPaths and getStaticProps feature. Posts are written in Markdown and managed by the application itself.
Contributions:293 commits, 239 PRs, 284 pushes in 1 year 7 months
next-jsreactssgstatic-pagesjest
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