develop a demonstrator of a multi-threading client-server system using eclipse java with 2 slightly different codes

I am looking for a skilled freelancer to develop a demonstrator of a multi-threading client-server system using Eclipse Java. The purpose of this system is to improve system performance, increase scalability, and enhance user experience.

Specific Requirements:
- I will provide a detailed list of requirements and features for the system
- The system should be able to handle multiple client requests concurrently
- The server should be able to process and respond to these requests efficiently
- The client and server codes should be slightly different to demonstrate the multi-threading capabilities

Ideal Skills and Experience:
- Strong proficiency in Java and Eclipse development
- Experience with multi-threading and client-server systems
- Ability to understand and implement detailed requirements
- Strong problem-solving and debugging skills
- Good communication skills to discuss and clarify requirements

Please note that I am open to suggestions and input from the freelancer, but I will provide a detailed list of requirements for the system.