Production Server Setup + Fresh Dev Setup + Repo Setup + Backup Plan

As a client, I am looking for a freelancer to help setup and maintain my production server. I am looking for a professional who have expertise in configuring my production server on the Linux operating system. I would like for the freelancer to set up a clean development environment, including all necessary development and management tools. Additionally, I'm looking for a freelancer to help me set up a Git repository, and deploy it using automated continuous integration. The server should also be backed up regularly. Finally, I need a freelancer who can help me troubleshoot any issues, provide maintenance and testing, and keep the system up and running.