I will design and develop a secure, maintainable REST API using Node.js and Express for your web application, mobile app, SaaS product or internal business system.

Depending on the agreed scope, your API can include:

RESTful endpoints and structured JSON responses

PostgreSQL, MySQL or MongoDB integration

JWT authentication and refresh tokens

Role-based access control

Input validation and centralized error handling

Pagination, filtering and search

File or image uploads

Email and third-party API integrations

API documentation

Deployment support for an existing AWS EC2 environment

You will receive organized source code, environment-configuration instructions and testing using agreed sample data.

Each service covers one clearly defined API or backend requirement. Frontend development, major legacy-code restructuring, cloud-resource creation and unapproved additional features are outside the initial scope. Payment-gateway integrations and webhooks are available only when specifically reviewed, agreed and quoted.

Please contact me before purchasing. Share your required endpoints, user roles, database, integrations, expected traffic, deployment environment and preferred timeline so I can confirm the scope and price.