Reynaldo Villena
Software Engineer at Freelance Software Engineer
São Paulo, Brazil
Summary
👤
Senior🎓
Top SchoolReynaldo Villena is a software engineer with a PhD and MSc in Computer Science from the University of São Paulo and over eight years of experience building web, desktop, and mobile applications. He combines deep academic expertise in number theory and cryptography with practical full-stack skills—Django/Python, PHP/MySQL, C# with SQL Server, and growing React experience—often developing SQLite-backed web tools and C# desktop systems for enterprise and public-sector clients. A regular LeetCode competitor and frequent user of scientific libraries like Pandas and NumPy, he brings strong problem-solving instincts and rigorous algorithmic thinking to production software. Currently freelancing from São Paulo, he has a track record of translating research-grade understanding into maintainable, audit-friendly solutions for healthcare, municipal, and commercial projects.
8 years of coding experience
5 years of employment as a software developer
Engineer's degree, Informática y Sistemas, 8/10, Engineer's degree, Informática y Sistemas, 8/10 at Universidad Nacional de San Antonio Abad del Cusco (UNSAAC)Doctor of Philosophy - PhD, Computer Science, 8.5/10, Doctor of Philosophy - PhD, Computer Science, 8.5/10 at Instituto de Matemática e Estatística - Universidade de São Paulo (IME-USP)
Spanish, English, PortugueseGithub contributions (5)
reynaldocv/projecteuler
Jun 2019 - Dec 2021
Contributions:22 commits, 62 pushes, 1 branch in 2 years 6 months
reynaldocv/leetcode
Dec 2021 - Oct 2024
Contributions:2381 pushes, 1 branch in 2 years 11 months
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