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Fiverr Pro
Português
$
USD
I will fix nodejs backend, express js API, mongodb, postgresql bugs
Muhammad Abid
Sobre este Serviço
Are you facing bugs or errors in your Node.js backend, Express.js API, MongoDB, PostgreSQL, Prisma, JWT authentication, Stripe payment, or REST API? I can help you debug and fix backend issues professionally with clean, scalable, and production-ready code.
I can fix API errors, database query issues, authentication bugs, Stripe webhook problems, deployment issues, server-side errors, environment configuration issues, and backend performance problems.
My services include:
Node.js backend bug fixing
Express.js API debugging
REST API endpoint fixes
MongoDB and Mongoose query fixes
PostgreSQL and Prisma ORM errors
JWT authentication and refresh token issues
Login, signup, role-based access, and authorization bugs
Stripe payment and webhook debugging
Third-party API integration fixes
Backend performance and response handling
Deployment and server-side error fixes
Technologies I work with include: Node.js, Express.js, MongoDB, Mongoose, PostgreSQL, Prisma ORM, MySQL, REST APIs, GraphQL, JWT Authentication, and Stripe Payment Integration.
Please contact me before placing an order so I can review your backend issue and suggest the best package.
Conheça mais sobre Muhammad Abid
Muhammad Abid
Full Stack Web Developer, React, Node, Databases and Deployment
- A partir dePaquistão
- Membro desdemai. de 2026
- Responde em aprox.:1 hora
Idiomas
Inglês, Urdu, Francês
I am Muhammad Abid, a Full Stack Web Developer with 3 + years of experience building modern, responsive, and scalable websites. I specialize in React.js, Node.js, Express js, MongoDB, PostgreSQL, MySQL, REST APIs, payment integrations, admin dashboards, and business web applications. I also have strong experience in deploying websites and backend systems on AWS, Render, Railway, Cloudways, and other hosting platforms. My focus is clean code, fast performance, secure backend architecture, and smooth user experience. Lets build a professional website for your business.
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Outros serviços de Desenvolvimento de Software que eu ofereço
Perguntas frequentes
What backend technologies do you work with?
I work with Node.js, Express.js, MongoDB, PostgreSQL, MySQL, Prisma ORM, REST APIs, JWT Authentication, Stripe Integration, and GraphQL.
Can you fix existing backend bugs?
Yes. I can debug and fix issues in existing Node.js, Express.js, MongoDB, PostgreSQL, Prisma, and API-based applications.
Can you fix authentication and authorization issues?
Yes. I can fix JWT authentication, refresh token flows, role-based access control (RBAC), session management, and authorization issues.
Can you fix Stripe payment integration issues?
Yes. I can troubleshoot Stripe Checkout, Payment Intents, Subscriptions, Webhooks, Customer Management, and Billing-related issues.
Do you work with databases?
Yes. I work with MongoDB, PostgreSQL, MySQL, Prisma ORM, and database optimization.
Can you review and optimize my API performance?
Yes. I can identify bottlenecks, optimize database queries, improve API response times, and enhance backend performance.
Do you provide source code after completion?
Yes. All source code changes will remain yours after project completion.
Can you work on large projects?
Yes. I can work on both small bug fixes and large-scale backend applications depending on project requirements.
What if my issue is complex?
Please contact me before placing an order. I will review the issue and recommend the most suitable package.
Do you sign NDAs?
Yes. I am comfortable working under NDA for confidential projects.
