I will fix nestjs API backend bugs and errors


About this gig
Are you dealing with a Node.js, NestJS, or REST API bug that is blocking your application?
I will diagnose and fix backend issues in existing Node.js, NestJS, JavaScript, and TypeScript applications.
I can help you fix:
- REST API errors and broken endpoints
- Node.js and NestJS bugs
- Authentication, JWT and authorization issues
- PostgreSQL, MySQL and database problems
- Prisma and ORM-related errors
- Third-party API and webhook integration issues
- Validation and error-handling problems
- Environment and configuration issues
- Docker and deployment-related backend errors
- Performance and backend logic issues
What you can expect:
- Clean and maintainable code
- Proper debugging and root-cause analysis
- Fixes integrated into your existing codebase
- Clear communcation about the issue and solution
- Production-focused backend development
I have professional experience building and maintaining backend systems using Node.js, NestJS, TypeScript, PostgreSQL, REST APIs, Docker, AWS, and other cloud technologies.
Please message me before ordering with the error, relevant logs, and a brief description of the problem. This allows me to confirm the scope and recommend the appropriate package.
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Get to know Saad Sohail
Backend Developer
- FromPakistan
- Member sinceJun 2019
- Last delivery5 years
Languages
Urdu, English
My Portfolio
FAQ
What information should I send before ordering?
Please send a description of the issue, relevant error messages or logs, your technology stack, and any steps required to reproduce the problem. Code access may be required after the scope is confirmed.
What is considered a small bug for the Basic package?
A small bug is one isolated backend issue with a reasonably identifiable scope, such as a broken API endpoint, validation error, configuration issue, or minor application logic bug.
Can you fix existing Node.js or NestJS projects?
Yes. This gig is specifically designed for debugging and fixing existing Node.js, NestJS, JavaScript, and TypeScript backend applications.
Can you fix database and authentication issues?
Yes. I can troubleshoot PostgreSQL/MySQL, Prisma/ORM issues, JWT authentication, authorization, roles and permissions, and related backend problems.
Can you work with third-party APIs and webhooks?
Yes. I can diagnose and fix API integrations, webhooks, request/response handling, authentication, and related integration issues.
What if my problem is more complex than the packages offered?
Send me the details before ordering. I can review the scope and provide a custom offer based on the complexity and estimated work.

