OFFENSIVE SECURITY ENGINEER
Offensive Security Engineer building practical security tools, workflows, and methodologies.
I build practical tools, workflows, and methodologies that help offensive security work become more repeatable, useful, and safe for real teams.
Juan Nemiña
Offensive Security Engineer
Focus
Security disciplines and workflows I spend most of my time on.
Selected work
A mix of public projects and sanitized case studies. Public projects link to repositories when available; case studies share only high-level, non-confidential details.
Local-first CLI for sanitizing authorized pentest evidence before reports, tickets, notes, PoCs, or internal sharing.
Internal Windows-based vulnerable lab designed to support offensive security assessment and training scenarios.
Implementation details, source code, and walkthroughs are not publicly available due to confidentiality or release constraints.
Availability: Not public
Credentials
Practical, hands-on certifications that support offensive security and cloud fundamentals.
OffSec Certified Professional
Practical offensive security certification focused on enumeration, exploitation, and privilege escalation.
Junior Penetration Tester
Practical penetration testing fundamentals, methodology, and hands-on security assessment skills.
Microsoft Certified
Cloud fundamentals covering Azure services, identity, security, governance, and cloud concepts.
Notes
Methodology-first writeups and short technical notes.
Notes and writeups are reviewed before publication. Drafts stay private until sanitized. When published, they will appear here as methodology-first reflections and practical workflow notes.
I'm open to conversations about application security, offensive security, mobile security, security automation, CTFs and labs, and open-source security tooling.