Need help with existing Java Project

I need help with an existing medium-sized Java project. I have an existing timeline for the project and I need help with a single feature. The existing project does not require a complete overhaul; instead, I would like assistance with a few areas that are causing challenges. I am looking for an experienced developer who has experience working with Java and can provide insight with troubleshooting and solutions. This project should appeal to a professional with a good balance of technical knowledge and project management. The successful candidate should have strong communication skills, be open to feedback, and enjoy working in a highly collaborative environment.