I will be your expert node js developer for rest API development and integrations


About this gig
Struggling with broken endpoints or need a high-performance backend built from scratch?
I am a professional Node JS developer specializing in building scalable REST APIs and seamless API integrations. Whether you are looking to fix a bug in an existing system or develop a complete backend architecture for your web application, I am here to help.
What I Offer:
- Custom REST API Development: Robust backends using Node.js and Express JS.
- Third-Party API Integration: Seamlessly connecting Stripe, PayPal, OpenAI, Twilio, Google Maps, and more.
- Database Integration: Expert setup and optimization for [Mention your DB, e.g., MongoDB, PostgreSQL, or MySQL].
- Bug Fixing: Quick resolution of connection errors, authentication issues, and logic bugs.
- JWT Authentication: Secure user login and authorization systems.
Why Choose Me?
- Clean, Documented Code: Easy for you or your team to maintain.
- Performance Focused: Optimized endpoints for fast response times.
- Post-Delivery Support: I don't just deliver and disappear; I ensure everything works.
Tech Stack:
- Runtime: Node JS
- Framework: Express JS
- Language: JavaScript / TypeScript
- Database: MongoDB, MySQL, and PostgreSQL
Please contact me before ordering
Get to know Kailey Louis
AI Automation Expert n8n, Make com, Shopify and API Integration
- FromUnited States
- Member sinceApr 2026
Languages
English, French, German
Other Software Development Services I Offer
FAQ
Do you provide documentation for the API?
Yes! Every API I develop or integrate comes with clear documentation (or Postman collections) so you or your frontend developer know exactly how to use the endpoints.
Can you fix an existing API built by another developer?
Absolutely. I can dive into your existing Node JS/Express codebase, identify bugs, and optimize the logic to get your system running smoothly again.
Can you integrate third-party APIs like Stripe, OpenAI, or Twilio?
Yes, I specialize in connecting external services. Whether it’s payment gateways, AI models, or communication tools, I can handle the integration and webhooks securely.

