Juan Rubio
Senior Penetration Tester
Uruguay
Summary
👤
Senior🎓
Top SchoolJuan Rubio is a Senior Penetration Tester and offensive security entrepreneur with nearly a decade of hands-on experience delivering tailored pentests across web, mobile, API, and network environments. He combines a software engineering background and application security experience from roles at Verifone and Deloitte with leadership in client-facing teams, estimating efforts, mentoring testers, and ensuring clear, value-driven communication. As a former application security engineer and full‑stack developer, he brings pragmatic secure-by-design thinking to engagements and to DevSecOps pipelines. Juan holds a Master's in Information Security and continuously contributes to the community through blog posts and security research. He runs a niche penetration testing practice while also serving as Senior Penetration Tester at Refactor Security, balancing independent consulting with team leadership. Notably, his profile blends deep technical roots in secure development with active bug‑bounty and research hunger that keeps his offensive skills sharp.
9 years of coding experience
7 years of employment as a software developer
Master in Information Security, Master's degree, Computer and Information Systems Security/Information Assurance, Master in Information Security, Master's degree, Computer and Information Systems Security/Information Assurance at Centro de Posgrados y Actualización Profesional en InformáticaComputer Engineer, Bachelor of Engineering, Computer Engineering, Computer Engineer, Bachelor of Engineering, Computer Engineering at Universidad de la República
English, Spanish, Portuguese
Stackoverflow
43reputation
6kreached
3answers
2questions
Github Skills (105)
vala10
frida10
instrumentation10
qt10
camera10
flash10
image-editing10
camera-flash10
reverse-engineering10
spring4shell9
logcat9
security9
windows9
poc9
security-scanner9
Programming languages (9)
Github contributions (5)
cxzero/xss-finder
Jun 2018 - Oct 2020
PoC tool to check if a URL is vulnerable to XSS
Contributions:7 commits, 1 PR, 5 pushes in 2 years 4 months
vulnerablexsssecuritypocxss-scanner
cxzero/ctf-writeups
Apr 2020 - Jun 2022
Contributions:27 commits, 21 pushes in 2 years 2 months
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