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I will develop a node js backend and rest API for your web or mobile app
Mallikarjun.M
About this gig
Looking for a Node.js backend developer to build a secure, scalable and reliable REST API for your web or mobile application?
I will develop a custom Node.js backend, REST API, API integration or backend service based on your project requirements.
What I can build for you:
Node.js backend development
REST API development
Express.js backend
CRUD APIs
Authentication and authorization
JWT authentication
Role-based access control
MySQL, PostgreSQL or MongoDB integration
Third-party API integration
Payment API integration
Webhooks
Swagger / OpenAPI documentation
API testing and debugging
Backend bug fixing
API optimization
Backend integration with React, Next.js and mobile applications
Technologies I work with:
Node.js | Express.js | JavaScript | REST API | MySQL | PostgreSQL | MongoDB | JWT | Swagger | OpenAPI | Webhooks | Git
I focus on clean architecture, secure APIs, scalable backend development, database performance, maintainable code and reliable communication
I can also work with Java Spring Boot and Python FastAPI when your project requires a different backend technology
Please send me your project requirements before ordering so I can understand your requirements
Get to know Mallikarjun.M
Mallikarjun.M
Backend Developer Node JS Spring Boot FastAPI
- FromIndia
- Member sinceOct 2025
Languages
English, Hindi
I'm a software engineer specializing in backend development using Node.js, Java Spring Boot, and Python FastAPI. I build scalable REST APIs, secure backend systems, database integrations, authentication, payment integrations, and third party API integrations. I work with MySQL, PostgreSQL, and MongoDB and can develop reliable backends for web and mobile applications. I also have experience with React, Next.js, Flutter, WhatsApp automation, and YouTube API integrations. I focus on clean code, reliable solutions, and on time delivery.
My Portfolio
FAQ
Can you develop a custom Node.js REST API for my project?
Yes. I can develop custom Node.js REST APIs using Express.js based on your project requirements, including CRUD operations, authentication, database integration, and third-party API integrations.
Can you integrate my API with a database?
Yes. I can integrate your backend with MySQL, PostgreSQL, MongoDB, or another supported database and implement the required database operations.
Can you add authentication to my Node.js API?
Yes. I can implement authentication and authorization using JWT, role-based access control, protected routes, and other suitable authentication methods.
Can you integrate third-party APIs or payment APIs?
Yes. I can integrate third-party REST APIs, webhooks, payment APIs, and other external services into your Node.js backend.
