Rafael Villegas Michel
Medellín, Antioquia, Colombia
Summary
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SeniorRafael Michel is a Senior Software Engineer with eight years of experience building scalable full-stack systems, currently working at Mercado Libre after leading major retail projects for Nordstrom. He specializes in TypeScript/Node.js, React, PostgreSQL, AWS, and Kubernetes, and has repeatedly driven migrations from serverless to microservices while designing event-driven architectures and real-time data replication. His work includes developer-experience improvements like a Go CLI for secret management and performance optimizations using Redis caching and Kafka consumers for privacy-sensitive customer data. Rafael also explores practical AI applications—semantic search with PG Vector and Azure OpenAI and internal AI agents to boost developer productivity—bringing an experimental, product-focused mindset to engineering. Bilingual and based in Medellín, he combines hands-on coding across multiple languages (Go, Python, Rust, Java) with a knack for automating operational workflows that reduce costs and improve user experience.
9 years of coding experience
Github Skills (18)
github-copilot8
driver7
copilot5
python5
linux4
lua4
gnu4
userspace4
cli3
neovim3
nvim-cmp3
windows2
cats-effect2
macos2
rust2
Programming languages (9)
Github contributions (5)
rvillegasm/sage
Dec 2019 - Feb 2020
A simple package manager for Linux, macOs and Windows
Contributions:33 commits, 2 PRs, 26 pushes in 2 months
linuxmacospackage-managerwindows
rvillegasm/Quasar
Jun 2020 - Jul 2021
Rendering engine written in modern C++
Contributions:16 PRs, 115 pushes, 12 branches in 1 year
cpprendering-engine
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