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hackhawk-arch/README.md

👋 Hi, I'm Kelvin Macharia

🚀 Cybersecurity Engineer | ☁️ Cloud & Generative AI Professional | 🛠 DevOps & Backend Builder

🧠 About Me

I am a security-focused engineer passionate about building secure, scalable, and intelligent systems.

My expertise spans:

🔐 Cybersecurity & Information Security
☁️ Cloud Infrastructure (Oracle Cloud, Azure)
🤖 Generative AI & LLM Applications
⚙️ DevOps & Automation
🌐 Backend & Distributed Systems

Recently certified as: Oracle Cloud Infrastructure 2025 Certified Generative AI Professional

I specialize in:

  • Understanding and working with Large Language Models (LLMs)
  • Using OCI Generative AI Service
  • Building Retrieval-Augmented Generation (RAG) chatbots
  • Designing secure AI-integrated systems

🛡 Cybersecurity Focus

  • Penetration Testing Planning & Scoping
  • Network Security & Hardening
  • Vulnerability Assessment
  • SMTP & Email Security Analysis
  • Risk & Control Evaluation
  • Secure System Architecture
  • Linux-based Security Labs
  • Threat Modeling & Mitigation

🛠 Tech Stack

💻 Languages

JavaScript | TypeScript | Python | Go | SQL

🌐 Backend & Frameworks

Node.js | Next.js | React | Django

☁️ Cloud & DevOps

Docker | Kubernetes | Terraform | Azure | OCI | CI/CD

🗄 Databases

PostgreSQL | MongoDB | Redis

📊 GitHub Stats

GitHub Stats

Top Languages

📫 Connect With Me

LinkedIn

⚡ “Security is not a feature. It is a foundation.”

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