Multi-stack cross-platform developer, ethical hacker and technical consultant

Dutch multi-stack cross-platform developer, information security researcher and technical consultant with 17 years of professional self-employment experience spanning 30+ computer languages. Helping others from start-up to int. global corp.

• Android Entwicklung
• Application Development
• CSS (Cascading Style Sheet)
• E-Commerce
• HTML
• iOS Entwicklung
• JavaScript
• PHP
• Web Security
• Webdesign