About Alen Sebastian — Security Researcher & Ethical Hacker
Alen Sebastian is a passionate Security Researcher, Ethical Hacker, and
VAPT Specialist (Vulnerability Assessment and Penetration Testing) based in Kerala, India. He
specializes in identifying vulnerabilities, crafting robust security solutions, and helping organizations stay
ahead of cyber threats.
Currently working as a Security Consultant at Gladius & Schild,
conducting penetration testing for enterprise clients, performing security assessments and code reviews
Areas of Expertise
- Red Teaming & Adversary Simulation
- Web Application Security & Penetration Testing
- VAPT (Vulnerability Assessment and Penetration Testing)
- API Security Testing
- Network Security & Exploitation
- CTF Competitions
Technical Skills
Security: Red Teaming, Penetration Testing, VAPT, Web Exploitation, API Security, Network
Security
Tools: Burp Suite, Metasploit, Nmap, Wireshark, Ghidra, SQLMap
Languages: Python, Bash, JavaScript, SQL, C/C++
Certifications
- Junior Penetration Tester v2 (eJPTv2)
- APIsec Certified Practitioner (ACP)
- Certified AppSec Practitioner v2 (CAPv2)
- Certified Network Security Practitioner (CNSP)
Education
Bachelor of Computer Application (BCA) — Marian College Kuttikkanam Autonomous, Kerala, India
Featured Projects
- Security Scanner — Automated web vulnerability scanner with OWASP Top 10 detection (Python,
Bash)
- Marauder-Web-UI — Web-based control interface for ESP32 Marauder with WiFi/BLE analysis
capabilities (C++, ESP32)
Contact & Social Links