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I will build a java spring boot rest API or microservice backend


Juan D
About this gig
Do you need a reliable backend for your web or mobile app? I build clean, well-structured REST APIs with Java and Spring Boot.
I am a Systems Engineer with more than 5 years of experience developing backend services for banks and public institutions in Colombia.
What I can do for you:
- New REST APIs or new endpoints for your existing Spring Boot project
- CRUD modules with validation, error handling and pagination
- Database integration with MySQL, Oracle, SQL Server or MongoDB
- Integration with third-party REST or SOAP services
- Bug fixing and improvements in existing Java code
- Deployment guidance for AWS (EC2, RDS, S3)
What you get:
- Source code delivered to your Git repository
- Endpoint documentation
- Unit tests (Premium package)
- Clear communication and progress updates
Please send me a message before ordering so we can confirm the scope and the right package for your project.
Get to know Juan D
Juan D
- FromColombia
- Member sinceAug 2023
Languages
English, Spanish
Systems Engineer from Colombia with 5+ years building backend software for banks and public institutions. I develop REST APIs and microservices with Java and Spring Boot, Angular front ends, and databases like MySQL, Oracle, SQL Server and MongoDB. I also deploy Java apps on AWS (EC2, S3, RDS, Lambda) and fix bugs in existing projects. I work in clear phases, share progress often and deliver documented code in your Git repository. Message me before ordering so we can confirm the scope.
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FAQ
• Which Java version do you use?
• Which Java version do you use? Java 8, 11 or 17, depending on your project.
Do you work with existing projects?
Yes. Share access to your repository and I will review the code before starting.
Which databases do you support?
MySQL, Oracle, SQL Server and MongoDB.

