I need an experienced Java developer to build a complete set of RESTful APIs that power our customer-facing web application. The work goes beyond a quick proof-of-concept; I’m looking for a production-ready solution delivered as soon as possible. Scope • Design and implement all required endpoints, covering user management, business logic, and data retrieval. • Build with modern Java tooling—Spring Boot or a similar JAX-RS framework—ensuring clean, well-structured code. • Add robust authentication and authorization, input validation, consistent error handling, and pagination where appropriate. • Produce thorough unit and integration tests plus automated build scripts (Maven or Gradle). • Generate clear, developer-friendly documentation—ideally Swagger/OpenAPI—so our front-end team can consume the services immediately. • Package everything for easy deployment (Docker image or WAR file) and provide a short hand-over guide. Key points – API style: RESTful (this is mandatory). – Primary consumer: an existing web application. – Timeline: delivery ASAP; please outline a realistic schedule in your proposal - 3rd Party APIs Integration - Authentication & Authorization - Data Encryption If you have a track record of shipping secure, scalable Java back-ends and can jump in right away, let’s talk.