upgrade and migrate library from Gradle to Maven

I'm looking for an experienced freelancer to upgrade, migrate and test libraries from Gradle to Maven and using the latest Java and Spring boot. I need someone who understands migration processes and can pay attention to the technical details. I'm not sure what specific requirements there are for the Maven migration, so I'd like to get some professional advice. Additionally, the deadline for the project is in less than a week, so speed of work is essential. Lastly, I'm also not sure if there are any specific functionalities or features that must be preserved during the upgrade, so I'd appreciate any advice and guidance the freelancer can provide.