Only Backend needs to be completed, partial method is already given (interfaces are already given), implementation needs to be done. [Removed by Freelancer.com Admin for offsiting - please see Section 13 of our Terms and Conditions]
Hi, I'm a full-stack web developer. As I understand, you need a developer to complete backend work in Java and work with the existing interfaces. Send me a message, as I'd like to ask for some more details.