I will fix nodejs and nextjs bugs, errors, issues and debug your backend application,


About this gig
Hello:
I will professionally fix Node.js bugs, runtime errors, API issues, Express problems, authentication failures, database errors and backend functionality. Ill diagnose the root cause, implement clean fixes, test your application and help restore a stable, reliable Node.js backend.
Service;
- Node.js bug fixing
- Node.js error debugging
- Node.js runtime error fixing
- Node.js syntax debugging
- Node.js module error fixing
- npm dependency troubleshooting
- Express.js bug fixing
- Express middleware debugging
- REST API debugging
- Node.js API fixing
- API authentication debugging
- JWT troubleshooting
- OAuth integration debugging
- CORS error fixing
- Webhook debugging
- JSON response troubleshooting
- Async/await debugging
- Promise error fixing
- Callback debugging
- Node.js database debugging
- MongoDB troubleshooting
- Mongoose debugging
- PostgreSQL integration fixes
- MySQL integration fixes
- Sequelize debugging
- Redis integration troubleshooting
- Socket.IO debugging
- WebSocket troubleshooting
- Node.js authentication fixes
- Node.js authorization debugging
- File upload troubleshooting
- Node.js server error fixing
- Environment variable and Docker Node.js troubleshooting
- Node.js deployment debugging
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Get to know Hollah Bugson
Full Stack Developer JavaScript PHP Nodejs and SaaS API Specialist
- FromUnited States
- Member sinceSep 2026
- Avg. response time2 hours
Languages
English, Spanish, French, German
FAQ
Can you fix Node.js errors?
Yes. I can investigate runtime, module, dependency, asynchronous and application-level Node.js errors and implement appropriate fixes.
Can you fix Express.js bugs?
Yes. I can troubleshoot Express routes, middleware, controllers, request handling, responses, authentication and error-handling problems.
Can you fix Node.js API errors?
Yes. I can investigate REST API requests, responses, authentication, JSON handling, HTTP status problems and third-party integrations.
Can you fix MongoDB errors in Node.js?
Yes. I can troubleshoot Node.js-to-MongoDB connections, Mongoose models, queries, CRUD operations and related database problems.
Can you fix PostgreSQL or MySQL issues?
Yes. I can investigate database connections, queries, ORM integrations and backend logic involving supported SQL databases.
Can you fix CORS errors?
Yes. I can investigate backend and frontend communication problems involving CORS configuration, allowed origins, methods and headers.

