I will fix nodejs express javascript api bug and backend error


About this gig
Are you struggling with critical Node.js, Express.js, or API bugs in your web application? Look no further! I am a Full-Stack Web Developer specializing in backend architecture, REST API integration, and database management. I will quickly diagnose, debug, and fix your backend errors so your application runs smoothly.
Services I Offer in This Gig:
Fix Node.js, Express.js, and JavaScript errors
Debug and resolve REST API issues & Webhook integration
Fix Database connection errors (MongoDB, Mongoose, MySQL)
JWT Authentication & Middleware authorization issues
CORS policy and security headers setup
Fix payment gateway integration bugs (bKash, Nagad, Crypto, Stripe, etc.)
Performance optimization & Server deployment bugs
Why Choose Me?
Clean, maintainable, and optimized code
Fast turnaround time and quick bug identification
100% Client satisfaction & continuous support
Note: Please message me before placing an order so we can discuss the requirements and provide the best solution for your project!
Respect third-party rights
Please be aware that it is against Fiverr's policies for sellers to include themes, templates, or any other elements that infringe third-party rights or applicable laws in the delivered work. Read more about in our Guide to Responsible Digital Creation.
Get to know Arafat Ariyan
Full Stack Developer and Node js Specialist
- FromBangladesh
- Member sinceAug 2025
- Avg. response time1 hour
Languages
Bengali, English
FAQ
Should I contact you before placing an order?
Yes, please message me first with your project requirements or codebase details so I can estimate the exact time and cost.

