Critical Issue Resolution in Java Project

I'm urgently seeking a seasoned Java developer to help rectify some critical anomalies in an ongoing project. Encountering unexpected system crashes, alongside some other issues, which undermine the project's efficiency and output quality. Recently, certain modifications to the code have been made, which are suspected to be the root cause of these problems.

The ideal candidate will possess:
- Extensive knowledge and proficiency in Java programming.
- A keen eye for debugging and problem identification.
- Proven expertise in performance optimization.
- Significant experience in handling and correcting unexpected system crashes.
- Have a deep understanding of Java coding standards and best practices.

Your responsibility will be to identify the cause of these problems, alleviate them rapidly, and suggest preventive measures to avoid recurrence. Your role involves improving the overall performance and stability of the application, thereby ensuring an uninterrupted workflow.