** Hi, I’m Samuel Kivairu (HexSentinel) 👋
I’m a data-driven developer with a strong focus on ethical hacking, AI engineering, and building systems that protect people rather than exploit them.
My work lives at the intersection of cybersecurity, statistics, and software engineering. I enjoy breaking systems to understand them, then rebuilding them stronger. From machine learning pipelines and AI-powered prediction models to web apps built with React and Firebase, I’m obsessed with turning theory into tools that solve real problems.
I’m especially interested in:
Ethical hacking and defensive security research
AI and machine learning for agriculture, healthcare, and social impact
Data analysis, statistical modeling, and explainable AI
Building scalable, clean, and secure software systems
I believe technology should be guided by integrity. My long-term goal is to become a guardian in the cybersecurity and AI space—learning deeply, building responsibly, and using my skills to serve communities and protect critical systems.
Currently learning, building, and sharpening my edge—one commit at a time.
**