Secure MERN Stack Development

I’ll build high-performance, secure MERN (MongoDB, Express, React, Node.js) applications with baked-in security best practices to protect against breaches, data leaks, and common exploits. Security-Focused Deliverables: Hardened Backend (Node.js/Express): Secure API development with JWT/OAuth2 authentication Input validation & sanitization (express-validator, helmet) Rate limiting & brute-force protection Encryption for sensitive data (AES-256, bcrypt) Safe Frontend (React): XSS/CSRF protection (CSP, anti-CSRF tokens) Secure state management (no sensitive data in localStorage) HTTPS enforcement & secure headers Database (MongoDB): Role-based access control (RBAC) NoSQL injection prevention Automated backups & encryption-at-rest DevSecOps Integration: SAST/DAST scans in CI/CD (Snyk, OWASP ZAP) Docker security best practices Secrets management (Vault, environment variables)

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