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$
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I will build rest API or microservices with java spring boot
Heyther
About this gig
I will build a robust backend using Java 17/21 and Spring Boot.
What you get:
- RESTful, GraphQL, or gRPC API
- Database integration with Spring Data JPA (PostgreSQL, MySQL, MongoDB)
- Security with Spring Security (JWT, OAuth2)
- Microservices with Spring Cloud (Eureka, Gateway, Config)
- API documentation (Swagger / OpenAPI)
Services:
- New API from scratch
- Add features to existing Spring project
- Migration to microservices
You receive production-ready code with clear documentation
Get to know Heyther
Heyther
Software Developer
- FromColombia
- Member sinceOct 2025
- Avg. response time1 hour
Languages
English, Spanish
I'm Heyther, a professional Software Developer with experience building scalable and secure web applications using Java (Spring Boot), .NET (C# / ASP NET Core), and Nodejs (Nest / Express).
I specialize in microservices architectures, event-driven systems (Kafka, RabbitMQ, MQTT), and secure API design with REST, GraphQL, and gRPC. I apply modern engineering principles like Hexagonal, Clean, and Vertical Slicing architectures, and I’m comfortable deploying solutions on Docker, AWS, Azure, and Firebase.
Whether you need a new backend from scratch, API integrations, or help improving.
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FAQ
What do you need from me to get started?
I’ll need a clear description of your requirements — such as endpoints, features, data models, and preferred technologies (if any). If you already have an existing project or documentation, that helps speed up delivery.
