João Vieira is a JavaScript-focused web developer and technology instructor based in São Paulo with eight years of experience building scalable, well-tested front-end and full-stack applications. He combines hands-on engineering—unit testing, CI/CD, video streaming and analytics—with product-minded requirement gathering and feature prioritization. Notable achievements include refactoring an e-commerce platform that cut AWS costs by 48% while boosting conversion and concurrency, and leading video-encoding projects with end-to-end deployment. An award-winning Computer Science graduate and ongoing Frontend Engineering specialist, he emphasizes standards, documentation and maintainability while continually adopting new tools. Colleagues know him as a tech lead and analyst who pairs pragmatic delivery with a constant drive for improvement.
Contributions:173 commits, 172 pushes, 1 branch in 2 years 3 months
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