🔐 Cybersecurity Specialist | 🎓 Technical Trainer | 💻 Full-Stack Developer

I bring over 12 years of experience helping organizations and professionals grow through secure software development, impactful training programs, and hands-on digital transformation. My passion lies in enabling teams to learn, build, and scale—safely and efficiently.

• Cybersecurity & Compliance: ISO 27001, Policy Drafting, ISMS Awareness, Network Security (SSL/TLS, VPN, SNORT, Wireshark)
• Technical Training: Java, Spring, React, DevOps, Cloud (trained over 10,000 learners)
• Full-Stack Development: Java, Spring Boot, React, Node.js, Python, MySQL, Oracle
• DevOps & Cloud: AWS, Docker, Kubernetes, Jenkins, Git, Maven

I’m currently preparing and uploading:

• 🛡️ ISMS Awareness Training Toolkit – Slides, notes & templates for compliance sessions
• 💻 Full-Stack EHR App (Spring Boot + React) – Simulated healthcare project
• 🔐 Secure File Sharing System – Java-based AES encrypted file transfer
• ⚙️ DevOps Lab Scripts – Hands-on CI/CD examples with Jenkins, Maven & Docker
• 📱 React Native Training Kit – Code + content for mobile app development workshops

• AWS Academy Cloud Architecting (2025)
• AWS Academy Cloud Foundation (2025)
• IBM Certified: Architectural Thinking for Security
• Oracle Certified Associate (Java SE 8)
• MS SQL & HTML5 Certified

• 🥇 Best Mentor Award – NIIT (Regional & National)
• 🎙️ Course Representative & PALS Mentor – University of Surrey (MSc Cybersecurity)
• 👨‍🏫 Trained 10,000+ professionals across India and international teams
• 🌐 Volunteered at WiCYS events to promote cybersecurity learning

📧 kathirkathir2006@gmail.com
🔗 LinkedIn – Kathiresan Natarajan