Open to opportunities

dylan du preez

@dylandupreez

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Network security professional specializing in penetration testing and Palo Alto firewalls.

South Africa

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What I'm looking for

I seek a hands-on security role focused on offensive testing, vulnerability remediation, and improving security posture, with opportunities for growth and impact.

I am a results-driven network security professional with hands-on experience configuring Palo Alto firewalls, monitoring security events, and conducting incident response. I have completed intensive penetration testing training and applied tools like Nessus, Burp Suite, NetSparker, Metasploit, and L0phtCrack to identify and remediate critical vulnerabilities across networks, web applications, APIs, mobile apps, and infrastructure.

I have delivered practical security assessments, developed custom vulnerable environments for training, and produced clear remediation guidance and executive reports. I seek to apply my offensive security skills, scripting knowledge (Python, Bash, C/C++), and compliance understanding to strengthen organizational security posture and drive measurable risk reductions.

Experience

Work history, roles, and key accomplishments

Current

Junior Information Technology Engineer

Current

New Order Group

Jun 2025 - Present (7 months)

Conducted penetration tests and vulnerability assessments on client networks, web applications, and systems, identifying critical issues and recommending remediation to improve security posture. Automated scanning with Nessus and NetSparker, performed manual testing with Burp Suite and custom scripts, and advised on password and MFA best practices.

Penetration Testing Nessus Burp suite Netsparker L0phtCrack Vulnerability Assessment Exploit Development

Trainee Penetration Tester

Orange Cyberdefense Academy

Feb 2025 - Apr 2025 (2 months)

Completed an intensive penetration testing boot camp covering web, API, mobile, and infrastructure testing; executed exploit-based assessments (SQLi, XSS, SSRF, Kerberoasting) and produced comprehensive reports and executive presentations. Built a custom vulnerable Docker training environment to demonstrate real-world vulnerabilities.

Web Testing API Testing Mobile Testing Metasploit OSINT BloodHound Frida Reporting Docker

Network Security Consultant

Checksum Network Security

Apr 2024 - Sep 2024 (5 months)

Configured and managed Palo Alto firewall infrastructure, optimised firewall rules and policies for security and operations, and monitored alerts while performing incident response to detected threats. Improved rule efficiency and operational security posture during engagements.

Palo Alto Firewalls Incident Response Security Monitoring Network Security Troubleshooting

Education

Degrees, certifications, and relevant coursework

Orange Cyberdefense Academy

Boot Camp / Professional Training, Penetration Testing / Offensive Security

2025 - 2025

Activities and societies: Developed a custom vulnerable Docker environment and delivered comprehensive penetration test reports and executive presentations.

Completed an intensive penetration testing boot camp covering vulnerability scanning, exploitation, API and mobile testing, OSINT, infrastructure testing, and reporting.