"Precision in every transaction, clarity in every decision."
const kayiranga = {
name: "KAYIRANGA Jesus",
title: "Full-Stack Developer & CEO of VaultIQ",
location: "Kigali, Rwanda 🇷🇼",
languages: ["JavaScript", "PHP", "HTML", "CSS", "Solidity"],
frontend: ["React", "Tailwind CSS", "CSS3", "HTML5"],
backend: ["Node.js", "Express.js", "PHP"],
databases: ["MongoDB", "MySQL"],
interests: ["Web3", "Cybersecurity", "System Architecture"],
ctf: "Active PicoCTF competitor & cybersecurity challenger",
currentFocus: "Building secure, scalable full-stack systems",
funFact: "I think in systems, not just in code 🔐"
};Security is not a feature — it is a foundation.
I am deeply passionate about cybersecurity and actively sharpen my skills through hands-on challenges and real-world problem solving.
🏆 CTF Competitions
PicoCTF is a world-renowned cybersecurity competition created by Carnegie Mellon University where I actively compete and solve real security challenges across these domains:
| Domain | Description |
|---|---|
| 🔍 Reverse Engineering | Analyzing and understanding compiled programs |
| 🌐 Web Exploitation | Finding and exploiting vulnerabilities in web apps |
| 🔒 Cryptography | Breaking and understanding encryption systems |
| 🧩 Binary Exploitation | Low-level memory and binary attacks |
| 🕵️ Forensics | Investigating and recovering hidden data |
| 💻 General Skills | Linux, scripting, and core security concepts |
🛡️ Security Knowledge I Apply
✔ JWT authentication & secure token handling
✔ Password hashing with bcrypt
✔ Role-based access control (RBAC)
✔ Input validation & sanitization
✔ API security & route protection
✔ Identifying & preventing common web vulnerabilities
📚 Currently Studying
- Network security & penetration testing fundamentals
- OWASP Top 10 vulnerabilities
- Ethical hacking methodologies
- Secure coding practices in Node.js & React
| # | Tool | Category | Purpose |
|---|---|---|---|
| 1 | 🔍 Nmap | Reconnaissance | Network scanning & port discovery |
| 2 | 🦈 Wireshark | Network Analysis | Packet capturing & traffic inspection |
| 3 | 💀 Metasploit | Exploitation | Penetration testing framework |
| 4 | 🔥 Burp Suite | Web Security | HTTP interception & web app testing |
| 5 | 🔑 John the Ripper | Cryptography | Password hash cracking |
| 6 | ⚡ Hashcat | Cryptography | GPU-accelerated hash cracking |
| 7 | 📡 Aircrack-ng | Wireless | WiFi security testing |
| 8 | 🚪 Gobuster | Web Security | Hidden directory & file brute forcing |
| 9 | 💧 Hydra | Exploitation | Login brute force attacks |
| 10 | 🔬 Binwalk | Forensics | Binary & firmware analysis |
⚠️ All tools are used strictly for ethical hacking, CTF competitions, and authorized security research only.
| 🏛️ Project | 📝 Description | 🛠️ Stack | 🔗 Link |
|---|---|---|---|
| VaultIQ | Premium inventory management system with role-based access, admin analytics, JWT auth and full CRUD | Node.js · Express · React · MongoDB | View Project |
More projects coming soon — stay tuned 👀
🏛️ Growing VaultIQ into a full business-ready platform
🔐 Competing in PicoCTF & cybersecurity challenges
🌐 Exploring Web3 & smart contract development
🛡️ Studying ethical hacking & penetration testing
📚 Sharpening system design & architecture skills
💻 Building more open source projects
"Don't just write code that works. Write code that lasts."
"Security is not a feature — it is a foundation."
"Every system you build is a reflection of how you think."
Thanks for visiting my profile! Drop a ⭐ on any project you find useful.