Senior Penetration Tester

Lin A.

I am a Certified Senior Penetration Tester and Red Team Specialist with several years of experience delivering cybersecurity instruction, mentorship, and technical training. I hold a Bachelor of Science degree in Computing (Networking) from the University of Greenwich (3.7 GPA) and multiple certifications, including OSCP, PNPT, CEH, and eJPT. Throughout my career, I have designed and updated cybersecurity curriculums, hosted expert webinars, and consistently achieved high student satisfaction through hands-on labs and real-world training simulations.

My tutoring and teaching experience spans working one-on-one with aspiring cybersecurity professionals, mentoring over 50 students at Nexus Infosec, and guiding individuals toward achieving career milestones in cybersecurity. I focus heavily on practical, scenario-based learning approaches using industry frameworks such as OWASP, NIST, and MITRE ATT&CK. My teaching style emphasizes creating a supportive environment, breaking down complex technical topics into accessible parts, and encouraging students to build confidence through progressive hands-on exercises.

In addition to my formal roles, I have provided community mentorship, helping students understand key tools like Nmap, Metasploit, Burp Suite, and C2 Frameworks. I have experience working with learners of all backgrounds, from beginners to advanced students preparing for industry certifications. My goal as a tutor is to inspire a passion for cybersecurity, instill practical skills, and guide students toward their academic and professional goals with structured, real-world-based support.