André Castelo is a Senior Software Engineer based in João Pessoa, Brazil, with 18 years of hands-on experience building modern web platforms using React, TypeScript, and Python, and recent work exploring Go. He thrives in contract and product environments—recently at Bluefin and long-term as a Toptal freelancer—delivering end-to-end systems from Next.js frontends to FastAPI/Django backends and CI/CD pipelines. André has repeatedly led architectural efforts, secure auth integrations (Keycloak), and E2E test automation (Playwright/Behave), bringing maintainability to legacy stacks and speed to greenfield projects. Comfortable switching hats between frontend polish and backend architecture, he prefers pragmatic, test-driven solutions and admits to a strong dislike for Java.
18 years of coding experience
11 years of employment as a software developer
Pontifical Catholic University of Rio de Janeiro
Bachelor's degree, Computer Science, Bachelor's degree, Computer Science at Universidade Federal da Paraíba
Simple test app to help discover new movies using a public API.
Contributions:22 PRs, 11 pushes, 1 branch in 3 years 2 months
discoverapireactmoviesrapidapi
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André Castelo - Senior Software Engineer at Toptal