Browse categories
Explore
Fiverr Pro
English
$
USD
I will build a secure nodejs authentication and login system
Md Khalid
About this gig
Need to protect user accounts, prevent unauthorized access, and manage login sessions securely?
I build Node.js JWT authentication APIs for startups, SaaS platforms, eCommerce businesses, and existing applications.
Problems I Solve
- Insecure login and password handling
- Expired tokens and unexpected logouts
- Refresh-token reuse risks
- Missing password recovery or session revocation
- Unauthorized API access
Authentication
- Registration, login, logout, and current-user API
- JWT access and refresh tokens
- Password hashing, change, and reset
- Protected routes
Advanced Security
- Refresh-token rotation, reuse detection, and revocation
- Secure HttpOnly cookies
- Joi validation, rate limiting, and error handling
User & Session Management
- User profiles and role-based access control (RBAC)
- Admin user management, search, and pagination
- Active sessions, individual session revocation, and logout from all devices
Tech Stack: Node.js, Express.js, MongoDB, Mongoose, JWT, bcrypt, Joi.
Backend APIs only. No frontend UI or full-stack development. New API development and existing backend integration are available. Features depend on the selected package.
Message me before ordering to discuss requirements.
Get to know Md Khalid
Md Khalid
Nodejs Backend Developer, JWT Authentication Security Expert
- FromBangladesh
- Member sinceAug 2020
- Last delivery4 years
Languages
Bengali, English
Have a project that needs a secure, reliable backend?
I help businesses and developers to build Node.js REST APIs and backend systems using Express.js and MongoDB. From authentication and user management to complete eCommerce and SaaS backends, I build systems around your actual requirements.
My focus is on clean architecture, strong security, reliable APIs, and maintainable code—so your backend is not just functional, but ready to support your application as it grows.
Let’s turn your backend requirements into a solid, working system.
FAQ
Do you build the user interface (UI) or frontend for this authentication system?
No. This service is strictly for backend development and API architecture using Node.js, Express, and MongoDB. I do not build frontend layouts, React components, or Nuxt pages for this gig. I will deliver production-ready server code and a Postman collection for your frontend team.
Is the basic signup/login system safe from modern web security vulnerabilities?
Absolutely. Even in my basic packages, passwords are never stored in plain text; they are encrypted using Bcrypt hashing. For advanced immunity against Cross-Site Scripting (XSS) and session theft, I highly recommend my Standard or Premium tiers which utilize secure HttpOnly, SameSite cookies.
How do you handle my database credentials and secret JWT keys securely during development?
Your secrets are safe. You should never share your raw production variables. I write all server code using standard environment files (.env). For development, I configure a completely isolated staging/development MongoDB cluster so your live production environment remains entirely untouched.
What is your refresh token rotation and reuse detection feature?
It's an enterprise security feature. If a hacker manages to steal an old, expired refresh token and tries to reuse it to access your API, my custom backend logic instantly detects the malicious reuse, invalidates the entire active session family tree, and forces a logout to protect the user account
Can you implement social logins like Google, facebook or GitHub OAuth?
My core packages cover custom email/password authentication systems. If you require Third-Party OAuth integration, please message me before placing an order. We can easily add it to your server as a custom checkout extra based on your project requirements.
What do I receive upon project completion to help me connect my frontend?
You will receive a clean, zip file of the modular codebase organized in an MVC pattern (Routes, Controllers, Models, Middlewares), along with a pre-configured Postman Collection. Your frontend developers can import this collection to test and integrate every single secure route instantly.
