• Created VM disaster recovery with Python + oVirt SDK, enabling zero downtime. • Restructured client network post-attack, reducing exposure via centralized firewall. • Configured FortiGate & Check Point firewalls (VPN, NAT, filtering). • Developed Zabbix + Grafana monitoring aligned with ISO 27001 controls. • Led project-based mentorship for 7 interns on cybersecurity, ML, and network infrastructure projects.

Built a MERN stack booking platform (React, Node.js, MongoDB, Express). • Designed REST APIs with conflict-free booking logic. • Automated email + calendar confirmations, reducing admin work by 50%. • Delivered a responsive React dashboard for staff to manage bookings. • Deployed production system on AWS EC2 with HTTPS/TLS and NGINX reverse proxy. Performed comprehensive security audit achieving A++ grade transformation from F, eliminating 100% of critical vulnerabilities. • Implemented enterprise-grade security controls including TLS 1.3 encryption, security headers, and OWASP Top 10 compliance. • Conducted penetration testing across authentication, injection, and SSL/TLS vectors, achieving zero security failures. • Configured advanced access controls with IP restrictions, information disclosure protection, and cross-origin isolation.

Built and published 4 apps using React Native & Expo achieving 500+ downloads across App Store and Google Play Store. • Led the full lifecycle (UX/UI, coding, testing, store submission, maintenance). • Reduced app crash rate to <1% through performance optimization. • Decreased bundle size by 40% and improved load times by 60%.

Configured firewalls, VLANs, DMZ, and subnet segmentation for secure isolation. • Deployed and hardened web, SFTP, and email servers . • Integrated Zabbix + Grafana with GLPI via API for asset management. • Applied ML (Python k-means) to monitoring data, achieving 0.85 silhouette score and reducing false positives.