Spring Boot Microservices for Data Processing

I'm seeking an experienced Spring Boot developer to create microservices for a project. The main functionality is data processing, specifically transactional data.

Key tasks:

- Design and develop microservices for transactional data processing.
- Implement communication protocols between different components.
- Set up user authentication methods.
- Manage data using PostgreSQL database system.

The ideal candidate will have:

- Proven experience in designing and implementing Spring Boot microservices.
- Proficient in managing transactional data.
- Strong knowledge of PostgreSQL.
- Mastery of protocols communication in a microservices architecture.