About Me

Hi, I’m Ian Marrero — a cybersecurity professional with over a decade of experience in information security, system architecture, and cyber threat detection across both the public and private sectors. I currently serve as a Principal Cyber Engineer, focusing on the deployment and support of insider threat detection systems for enterprise environments.

My background includes hands-on work in areas like:

• Threat hunting, cyber threat emulation, and incident response

• System hardening and compliance using NIST frameworks

• Deployment and integration of cybersecurity products in Linux, Windows, and macOS

• Container orchestration, SIEM configuration, and endpoint monitoring

I’ve had the opportunity to lead teams, work directly with government agencies, and engineer solutions that protect critical infrastructure and information systems. I bring a hybrid mindset — deeply technical, but always strategic.

With experience that spans from the Department of Defense to the Department of Commerce and private-sector cybersecurity firms, I’ve developed a sharp eye for balancing security needs with business goals. Whether I’m reverse engineering malware, tuning detection rules, or mentoring up-and-coming analysts, I approach each challenge with curiosity, integrity, and impact in mind.

When I’m not knee-deep in threat models or SIEM dashboards, you can find me:

• Spending quality time with my wife and sons

• Practicing martial arts to stay sharp — mentally and physically

• Tackling new trails through hiking adventures

• Exploring penetration testing tools and techniques in my home lab or Hack The Box

• Picking locks (ethically!) — because why not challenge your mind?

I believe cybersecurity is best learned hands-on and with the guidance of someone who’s walked the path. That’s why I’m committed to supporting others through 1:1 mentorship, helping them navigate their careers, build technical skills, and find their place in this ever-evolving field.

Ready to connect or work together? Book a mentorship session or send me a message — I’d love to hear from you.

Certifications

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