Jason A.Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Nov 5, 2026.

20-year cybersecurity professional with a doctorate in computer science (data protection focus), covering penetration testing, security investigations, and technical training for companies operating globally. Clients retain me for recurring compliance-driven pentesting and annual security awareness training. Pentest work spans network, web application, and infrastructure environments, including engagements supporting SOC 2 and PCI DSS compliance cycles. Testing follows a documented methodology, with CVSS-rated findings and retest verification, built to the standard a QSA or auditor expects. OSCP and GPEN certified for hands-on testing, with additional credentials in reverse engineering (GREM) and security management (CISSP, ISSAP, CISM). Other services: Security investigations and incident response Technical security training and awareness programs Technical review of security content, education, and training materials, including work for SANS Institute I write regularly on data security, network security, and digital forensics, and I'm the author of several published security books, including Foundations of Cybersecurity (2nd ed., No Starch Press), Cyber Warfare, and Coding for Penetration Testers (Syngress).