Python-Java AWS Lambda Integration Specialist

I am in need of a skilled developer, expert in both Python and Java Spring Boot, who can take on the task of integrating my already existing Java-based web project with a web service for interaction with an AWS Lambda function.

The specific tasks include:

* Writing the web service to interact with AWS - Expertise in the creation of web services and their necessary interactions is crucial. Understanding of AWS Lambda and its workings to create complex interactions is a must.

* Integrating the web service into the Java-based project - The developer should have experience in not just creating Java-based web projects, but also integrating services into existing systems without any standstill in productivity.

Considering the complexity of the task, developers with a detailed understanding of interfacing between web services and AWS Lambda for advanced and intricate functions would be ideal for this project. My project requires precise integration and high-end efficiency; therefore, your strong background in Python, Java Spring Boot, AWS and web services can make a significant difference.