Java & Node.js Developer for Scalability Enhancement

I'm looking for a seasoned Software Developer with over 5 years of experience in Java, Node.js, and AWS. The primary focus of this project is to enhance the performance and scalability of an existing application.

Key Responsibilities:
- Develop scalable applications with a strong focus on resource utilization.
- Collaborate with cross-functional teams to define, design, and ship new features.
- Integrate with other systems as needed.

Ideal Skills:
- 5+ years in Software Development, specifically with Java and Node.js.
- Proficiency in AWS, JavaScript, microservices, API design/integration.
- Strong knowledge of NoSQL/SQL databases.
- Experience in developing applications aimed at enhancing performance and scalability.

As part of this project, we will concentrate on improving resource utilization. While you are not required to conduct performance testing, a deep understanding of this aspect will be beneficial. Please note that the use of specific performance testing tools or frameworks has not been predetermined. Ultimately, I am seeking an expert who can not only contribute to code but also provide insights and suggestions for improving our system's efficiency.