Juan Mesaglio
Cloud Security Technical Leader at Mercado Libre
Buenos Aires, Autonomous City of Buenos Aires, Argentina
Summary
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Rockstar🎓
Top SchoolJuan Mesaglio is a Cloud Security Technical Leader based in Buenos Aires with eight years of hands-on experience securing cloud-native platforms at Mercado Libre. He has progressed through roles from cyber incident response and automated phishing defense to leading company-wide initiatives like distroless images, container hardening, image signing, and continuous vulnerability scanning. Comfortable coding in Go, Python and Node.js, he contributes to open-source tooling—recently enhancing a Go-based website cloner with smarter image handling, proxy support and efficiency refactors. Juan combines practical DevSecOps instincts with deep understanding of build-from-source and dependency management, helping teams shift security left without slowing delivery. He also teaches operating systems and programming paradigms at UTN Buenos Aires, bringing academic clarity to production problems. Colleagues rely on him for pragmatic, automation-first security solutions that scale across AWS, GCP and GitHub ecosystems.
9 years of coding experience
5 years of employment as a software developer
Ingeniería en sistemas de informacion, Ingeniería en sistemas de informacion at Universidad Tecnológica Nacional
Stackoverflow
11reputation
2kreached
3answers
0questions
Github Skills (12)
golang10
go10
crawler9
proxy8
json6
beautifulsoup6
machine-learning6
curl6
python6
parsing6
6
gcc6
Programming languages (15)
Github contributions (5)
goclone-dev/goclone
Nov 2021 - Aug 2022
Website Cloner - Utilizes powerful Go routines to clone websites to your computer within seconds.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:1 release, 14 reviews, 23 commits in 9 months
Contributions summary:Juan contributed to the website cloner project by enhancing the image handling capabilities. They implemented features to ignore base64 and blob image URLs, and added support for proxy settings. Furthermore, the user updated dependencies and refactored the code to improve the project's efficiency. They also worked on cleaning up and simplifying parameters and removed unnecessary functions.
goroutinegolanggocloningcrawler
mesaglio/melange
Jul 2023 - Mar 2025
build APKs from source code
Contributions:31 pushes, 7 branches in 1 year 9 months
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