Yeray 'JBKira' Medina Piñero

Junior Penetration Tester || Offensive Security Engineer || Red Team Operator

eJPTv2
CPTS
CRTO

About Me

Junior penetration tester focused on web application security, Active Directory and infrastructure assessments. CRTO & CPTS-certified with hands-on experience across HTB Pro Labs and 100+ offensive security labs. Experienced in Red Team Operations, defense evasion, C2 operations, enumeration, exploitation, privilege escalation, lateral movement and technical reporting. Currently deepening red team and adversary simulation skills through CRTL course.

I am currently looking forward to new opportunities in the field of cybersecurity to enhance my professional skills and contribute to meaningful projects that can make me grow as a security professional.

Certifications

eJPTv2

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CPTs

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CRTO

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IT Skills

Graphical diagram of the technical skills I possess in the field of computing

Domains
Networking
Systems
Cybersecurity
Programming
Databases
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Projects

In this section you can find my latest projects and contributions to cybersecurity


Latest CTF Machines Completed (+110 in total)

In this section you can find my latest CTF machines completed with detailed write-ups

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CVEs, PoCs & Security Research

Proof of Concepts created by me to already discovered vulnerabilities

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