Rayhan

@thesiamrayhan

Certified Ethical Hacker and Fullstack Android Developer

Bangladesch

Englisch, Hindi, Bengalisch

Einige Informationen werden in englischer Sprache angezeigt.

Über mich

👋 I'm Siam Rayhan — Fullstack Android Developer & Certified Ethical Hacker from Bangladesh, coding since 2017. I build apps and secure them — a rare combo. ✅ Android App Development (Java/Kotlin) ✅ IoT Systems (ESP32, Arduino, Firebase) ✅ REST API Integration ✅ Custom Libraries on Maven Central & GitHub ✅ Penetration Testing & Security Audits ✅ Vulnerability Assessment & Ethical Hacking Open-source contributor. Let's build something powerful & secure!... Mehr lesen

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