Julio Castillo

About Julio Castillo

I am a dedicated Cybersecurity Analyst with one year of hands-on experience, a CompTIA Security+ certification, and a strong problem-solving mindset. In this time, I have contributed to three major security projects and completed a practical internship, gaining expertise in threat analysis, vulnerability management, and incident response.With a solid foundation in risk mitigation and security operations, I am committed to strengthening organizational defenses against evolving cyber threats. Always eager to learn and adapt, I actively seek opportunities to enhance security strategies and collaborate with industry professionals.

Experience

1. Cyber Security Support Engineer

   Log N Pacific

   Dec 2024 — Present

   Developed custom detection rules in Microsoft Defender for Endpoint to automate isolation and investigation of compromised systems-Reduced brute force incidents by 100% by implementing inbound NSG/firewall rules to limit Internet exposure-Performed vulnerability assessments and risk prioritization using Tenable across Windows and Linux environments-Executed secure configurations and compliance audits (DISA STIG) with Tenable to meet industry standards.

Education

• Alvernia University

  Bachelor's degree, Registered Nursing/Registered Nurse