I will develop a secure node express backend API with mongodb atlas


About this gig
Stop deploying vulnerable backends.
Your business deserves enterprise-grade data security.
Whether building a healthcare platform, SaaS, or internal portal, I engineer secure REST APIs using Node.js, Express, and MongoDB Atlas. With 5+ years of experience, I protect your assets from day one.
AUDIENCE BENEFITS & BUSINESS VALUE: Data Privacy: Protect sensitive compliance data with enterprise-grade encryption. Automated Deploy: Zero DevOps stress with GitHub Actions CI/CD pipeline directly to Railway. High Performance: Optimized database pooling built to handle massive concurrent traffic.
️ METADATA SECURITY HARDENING: Node.js & Express: Advanced JWT Role-Based Access Control and strict input sanitization. NoSQLi & ReDoS Mitigation: Query type-checking to completely block injection payloads. Privilege Escalation Guard: Field whitelisting isolates role modifications to admins. Cryptographic Sovereignty: Ephemeral TLS_CERT_B64 usage to leak zero keys on disk. Secure HTTP Headers: Hardened Helmet policies blocking cross-site scripting vulnerabilities.
Message me before ordering to discuss your backend architecture!
Get to know Jorge G.
FullStack, Mobile Dev, Angular API, Flutter, Node
- FromItaly
- Member sinceMar 2026
- Avg. response time1 hour
Languages
Spanish, English, Italian
My Portfolio
FAQ
Do you follow standard API naming conventions?
Yes, absolutely. All routes are normalized and written strictly (e.g., /api/v1/doctors, /api/v1/hospitals) utilizing correct HTTP verbs (GET, POST, PUT, DELETE) and returning perfectly structured plural JSON arrays.
How do you guarantee database security on cloud environments?
I enforce zero hardcoded keys by utilizing environment variables. Additionally, for modern ephemeral hosting like Railway or automated CI environments, I implement TLS_CERT_B64 to handle database TLS certificates safely in-memory without persistent disk footprints.
Is the backend protected against modern database attacks?
Yes. The application layers include active NoSQL injection filters on query parameters, input type-checking on logins, and sanitized regex inputs to completely neutralize Regular Expression Denial of Service (ReDoS) threats.
What package manager and deployment setup do you use?
I use pnpm for ultra-fast, deterministic dependency management with a strict lockfile. For deployment, I provide a native GitHub Actions workflow alongside a tailored railway.json file configuring automatic restarts and automated health check paths.
Is this Node.js backend compatible with my existing frontend technology?
Yes, 100%. The backend is a decoupled REST API using JSON, making it fully compatible with any frontend like Angular, React, Vue, Next.js, or mobile apps. I also pre-configure secure CORS policies to ensure seamless, safe, and immediate integration with your domain.

