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English
$
USD
I will develop a java spring boot rest API with tests and documentation
Shen Jiawen
About this gig
I will build a focused Java Spring Boot REST API module for your application.
I have five years of Java backend experience across education platforms, AI tutoring workflows and logistics systems, and have led a five-person development team.
This package includes:
- One business entity and up to 3 REST endpoints
- MySQL persistence, request validation and consistent error responses
- Tests for the agreed success and failure cases
- Source code, SQL/schema changes, API examples and a setup guide
- One revision within the original scope
Suitable for a small CRUD module or a clearly defined extension to a runnable Spring Boot application. Delivery is 5 days after complete requirements are received.
Frontend UI, payment systems, complex authorization, external integrations, infrastructure deployment and large legacy refactors require a separate scope. Please message me before ordering to confirm feasibility and acceptance criteria.
Communication is primarily written in English or Chinese.
Get to know Shen Jiawen
Shen Jiawen
Java Backend Developer, Spring Boot and AI API Integration
- FromChina
- Member sinceOct 2026
- Avg. response time1 hour
Languages
Chinese, English
I am a Java backend developer with five years of experience in education platforms, AI applications and logistics systems. I have led a five-person development team and worked on API design, asynchronous workflows and data production tools. I offer Spring Boot REST API development, focused bug fixes, AI API integration and Excel/CSV import validation. My stack includes Java, Spring Boot, MyBatis, MySQL, Redis, RabbitMQ and Elasticsearch. I focus on clear requirements, tested code and practical documentation. Communication is primarily written in English or Chinese.
Other Software Development Services I Offer
FAQ
What is included in the $30 package?
One entity, up to 3 REST endpoints, MySQL persistence, validation, error handling, tests, source code and setup/API documentation. This is a small backend module, not a complete application.
Can you fix an existing Java application?
Yes, after I review the issue and confirm a runnable environment and scope. A bug fix may replace the API module by agreement; it is not an additional task included in this package.
Do you handle Redis, messaging or AI integrations?
I have worked with Redis/Redisson, RabbitMQ, Elasticsearch and AI application workflows. These can be discussed as separately scoped work after reviewing your requirements.
How do communication and revisions work?
I communicate primarily in writing, in English or Chinese. One revision covers corrections against the original acceptance criteria. New endpoints, features or changed requirements need a separate scope.
