🌍 Location: Dhaka, Bangladesh
💼 Role: Cybersecurity Researcher & Full Stack Developer
🔐 Specialization: Web Security, Bug Bounty Hunting, Penetration Testing
🎯 Current Focus: Finding vulnerabilities and building secure applications
Who I Am:
I'm a security researcher who specializes in finding and fixing vulnerabilities in web applications. I work as a bug bounty hunter, discovering security flaws before malicious hackers can exploit them. I also build secure web applications using modern technologies and share my knowledge through YouTube tutorials to help others learn about cybersecurity and web development.
| Category | Technologies & Tools |
|---|---|
| Penetration Testing | Web Application Testing, API Security, Authentication Testing |
| Vulnerability Research | OWASP Top 10, SQL Injection, XSS, CSRF, Business Logic Flaws |
| Bug Bounty Platforms | HackerOne, Bugcrowd, Private Programs |
| Security Tools | Burp Suite, OWASP ZAP, Metasploit, Nmap, SQLMap, Wireshark |
| CTF & Challenges | Capture The Flag Competitions, Security CTFs |
| Category | Technologies |
|---|---|
| Frontend | JavaScript, TypeScript, React.js, Next.js, HTML5, CSS3, Tailwind CSS |
| Backend | Node.js, Express.js, Django, Python, REST API, GraphQL |
| Databases | MongoDB, PostgreSQL, SQLite, Redis |
| Blockchain | Solidity, Web3.js, Smart Contract Security |
| Tools & DevOps | Docker, Git, GitHub, Linux (Kali, Ubuntu), VS Code |
- 🔍 Active Bug Bounty Hunter - Finding and reporting security vulnerabilities on platforms like HackerOne and Bugcrowd
- 🎯 Web Penetration Testing - Testing web applications for OWASP Top 10 vulnerabilities
- 🚩 CTF Player - Participating in Capture The Flag competitions and security challenges
- 🛡️ Responsible Disclosure - Helping companies fix security issues before hackers exploit them
- 💻 Full Stack Development - Building secure, modern web applications
- 🎓 YouTube Content Creator - Teaching cybersecurity and web development on my channel
- 🔧 Tool Development - Creating security tools and scripts for testing
- 📚 Knowledge Sharing - Writing tutorials and guides for the community
I offer professional services for businesses and individuals:
- ✅ Web Application Security Testing - Find vulnerabilities before hackers do
- ✅ Penetration Testing - Comprehensive security assessment of your systems
- ✅ API Security Testing - Ensure your APIs are secure from attacks
- ✅ Security Code Review - Review your code for security vulnerabilities
- ✅ Full Stack Web Development - Build modern, secure web applications
- ✅ Secure Application Design - Design applications with security in mind
- ✅ Bug Bounty Collaboration - Work together on vulnerability research
- ✅ Security Consulting - Get expert advice on security best practices
I'm always open to collaboration and new opportunities!
| Platform | Link |
|---|---|
| sajjadsiam@yahoo.com | |
| 🌐 Website | sajjadsiam.com |
| @sajjadsiam13 | |
| @sajjadsiam13 | |
| 💻 GitHub | @sajjadsiam |
- 🔐 Security research projects and bug bounty programs
- 🛠️ Open source security tool development
- 🚩 CTF team participation and competitions
- 🎥 Educational content creation and tutorials
- 💼 Professional security consulting projects
"Making the web safer, one vulnerability at a time."
I believe that security should be accessible to everyone. Through my work in bug bounty hunting, penetration testing, and educational content, I aim to:
- 🔒 Help companies secure their applications before hackers attack
- 📚 Share knowledge to help others learn cybersecurity
- 🌐 Make the internet a safer place for everyone
- 🤝 Build a strong, collaborative security community
- 💻 Favorite Code:
print("Hello, Security World!") - 🐛 Favorite Activity: Finding bugs that others miss
- 📖 Always Learning: New vulnerabilities, tools, and techniques
- ☕ Powered By: Coffee, curiosity, and a passion for security
📧 Business Inquiries: sajjadsiam@yahoo.com
"The only truly secure system is one that is powered off, cast in a block of concrete, and sealed in a lead-lined room with armed guards."
— Gene Spafford