Yes, hiring a system admin can help a lot with things like security, moving websites, customizing software, optimizing the website, setting up servers, and VPS. The risky aspect to a 3rd party system admin is that they will have full access to your website and/or server, so it's important to be able to trust the person or company you use. Easy things like site moving can be done from a single professional off Fiverr, but long term system administration support if not doe by us should be a done with a professional system admin service. You can see a list here, but check each service thoroughly, as the list might not be updated.
https://webhostproblog.com/2024/09/system-admin-services-for-cpanel-based-servers/