Backend for courier website

I am looking for an experienced and professional developer to create a backend for an upcoming courier website. Ideally, the backend should be written in Node.js, as I have a detailed specification of features and functionalities required. In addition, I have decided to use Firebase as my database management system of choice. The successful freelancer should have previous experience writing backends and good knowledge of Node.js, Firebase, and related technologies. If you have a proven track record of creating professional backends with these technologies, please feel free to submit your proposal.