Browse categories
Explore
Fiverr Pro
English
$
USD
I will fix nodejs nestjs API bugs errors and mongodb issues
Chamath W
About this gig
Are you facing bugs, errors, or unexpected issues in your Node.js or NestJS backend?
I can help you diagnose and fix backend issues in Node.js, NestJS, TypeScript, MongoDB, Mongoose, and REST APIs.
What I can help you with:
- Node.js and NestJS bugs and errors
- TypeScript errors
- REST API issues
- MongoDB and Mongoose problems
- Authentication and JWT issues
- API validation and error handling
- Database query issues
- Redis and BullMQ issues
- Third-party API integration issues
- Backend performance problems
- Existing code debugging and troubleshooting
I have professional experience building and maintaining backend applications using Node.js, NestJS, TypeScript, MongoDB, Redis, APIs, queues, and cloud-based services.
I focus on identifying the root cause of the problem and providing clean, maintainable fixes rather than temporary workarounds.
Please contact me before placing an order for complex issues so i can review your requirements and recommend the appropriate package.
Please contact me before ordering if you're unsure which package fits your issue. I'll review the problem and recommend the appropriate package based on its complexity.
Get to know Chamath W
Chamath W
Senior Software Engineer
- FromSri Lanka
- Member sinceMar 2016
- Avg. response time1 hour
Languages
English
I am a skilled developer with 7+ years of experience specializing in backend development, cloud-based architectures, and large-scale distributed systems. I am experienced in Java, Node.js, Microservices and Azure serverless technologies. I am passionate about solving complex challenges, building efficient automation workflows, and delivering high-quality, scalable solutions.
FAQ
What information do you need to start debugging?
Please provide a clear description of the issue, relevant error messages or logs, steps to reproduce the problem, and access to the relevant source code or repository. Please do not send passwords, production database credentials, API secrets, or other sensitive information directly.
What technologies can you help with?
I mainly work with Node.js, NestJS, TypeScript, MongoDB, Mongoose, REST APIs, JWT authentication, Redis, and BullMQ.
Can you fix any Node.js or NestJS bug?
I can troubleshoot a wide range of backend issues. However, complexity varies between projects, so please contact me before ordering if you have a complex or unclear problem.
Which package should I choose?
Choose Basic for one small and isolated issue, Standard for multiple related backend issues, and Premium for more complex debugging. If you're unsure, message me with the details and I can recommend the appropriate package.
Can you fix MongoDB and Mongoose issues?
Yes. I can help troubleshoot MongoDB/Mongoose queries, schema and validation issues, API/database errors, and certain performance problems.
Can you fix REST API and authentication issues?
Yes. I can troubleshoot REST API errors, request/response problems, validation, JWT authentication, authorization, guards, and related NestJS issues.
Do you develop new features as part of this Gig?
This Gig primarily focuses on debugging and fixing existing backend applications. Small changes may be possible depending on the package. For larger features or new API development, please contact me for a custom offer.
Will you deploy my application?
Deployment is not included by default in this Gig. If your issue involves deployment, Docker, Azure, or another environment, please contact me before ordering so I can review the requirements.
Will you explain what caused the problem?
Yes. After resolving the issue, I can provide a brief explanation of the root cause and the changes made.
