Juan Villegas
Senior Software Engineer at Mercado Libre
Medellín, Antioquia, Colombia
Summary
👤
Senior🎓
Top SchoolJuan Villegas is a Senior Software Engineer with seven years of experience building scalable, low-latency web systems, currently driving backend initiatives at Mercado Libre. He specializes in Go and Java Spring Boot, with full-stack fluency in React and Node.js, and a strong track record optimizing server-side performance through caching, indexing, and code-level improvements. At Mercado Libre he led efforts to centralize product configuration, reduce configuration errors, and maintain SLOs while developing internal libraries that streamline team development. Comfortable both as an independent contributor and a collaborative team lead, he combines pragmatic engineering with a focus on security and code quality. Educated through formal degrees and focused upskilling in blockchain and AI on Platzi, he brings curiosity and continuous learning into production-grade systems. Colleagues know him as a "code addict" who turns operational pain points into measurable cost and reliability improvements.
7 years of coding experience
4 years of employment as a software developer
Carrera en Blockchain y Criptomonedas, Carrera en Blockchain y Criptomonedas at PlatziGrado en Ingeniería Informática, Non, Grado en Ingeniería Informática, Non at Fundación Universitaria Internacional de La Rioja - UNIRSENA: Servicio Nacional de Aprendizaje
Github Skills (15)
hosting6
css-variables6
cli6
gulp5
jamstack4
spritesheet3
vercel3
podcast3
react3
backend3
javascript2
css1
android-app1
ui-design1
react-native1
Programming languages (8)
Github contributions (5)
sebasvil20/juansetech-blog
Nov 2023 - Apr 2025
Blog personal con artículos sobre tecnología, desarrollo y vida personal.
Contributions:8 PRs, 56 pushes, 1 branch in 1 year 5 months
sebasvil20/Fitness-App
Jan 2020 - Sep 2020
ReactJs Fitness Project
Contributions:7 commits, 1 PR, 4 pushes in 8 months
react
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