Spring Boot MVP Development

I'm looking for an experienced Java developer to assist with ongoing development tasks on my backend application.
Technology Stack:

Java 11
Spring Boot
Spring Batch
AWS Lambda
RESTful APIs
PostgreSQL (pgAdmin)
Bruno for API testing

Project Scope:
I need a freelancer who can help with various development tasks including:

Developing and modifying REST APIs based on requirements
Working with Spring Batch for batch processing tasks
Lambda function development and integration
Database operations using PostgreSQL
API testing and documentation using Bruno
Bug fixes and feature enhancements

Required Skills:

Strong experience with Java 11 and Spring Boot framework
Hands-on experience with Spring Batch
AWS Lambda development experience
RESTful API design and development
PostgreSQL database management
Experience with API testing tools (Bruno preferred, but Postman acceptable)
Good understanding of microservices architecture

What I'm Looking For:

Someone who can start immediately
Good communication skills
Ability to work on tasks
Available for ongoing collaboration as tasks arise

Project Duration:
Ongoing - task-based assignments
Budget:
5k-10k