Yeray 'JBKira' Medina Piñero

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

eJPTv2
CPTS
CRTO (Pending Exam)

About Me

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

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.

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Certifications

eJPTv2

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CPTs

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CRTO (Pending Exam)

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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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