About

Hi there! 👋

I'm Jeya Seelan S, a Senior Security Engineer with 4+ years of hands-on experience in offensive and defensive security practices. Currently working at Tekion Corporation as Security Engineer II, where I drive product security initiatives and embed secure-by-design principles across the Secure PDLC.

My expertise spans product security, red teaming, secure software design, threat modeling, cloud security posture management, and DevSecOps. I'm passionate about building automation tools to reduce risk and streamline security operations.

Previously at Zoho Corporation, I performed extensive penetration testing, led real-world red team assessments, and built internal tools that significantly reduced attack surface. I'm also active in the security community and have discovered multiple CVEs including CVE-2020-35338 and CVE-2025-52966.

Check out my security research and insights or connect with me on LinkedIn.

Professional Interests & Achievements

• Security Research: Discovered multiple CVEs and actively contribute to the security community
• Conference Speaking: Delivered talks on "Weaponising Shodan for Fun and Profit" and "Why So Serial: Demystifying Insecure Deserialisation"
• Security Education: Organized company-wide CTF events and internal security workshops to enhance developer security awareness
• Automation & Tooling: Built internal tools for automated asset discovery and vulnerability scanning

Security Tools & Technologies

My current security toolkit and expertise:

Connect With Me

Let's connect and discuss security research, red teaming techniques, or collaborate on security initiatives. I'm always interested in sharing knowledge and learning from the security community.