I have over 5 years experience building cloud storage (Nextcloud/ownCloud) on Linux webservers, tweaking performance and securing them.
I know a lot about networking, Pfsense/OPNsense home or corporate. OpenVPN secure tunnels client/servers. For secure offsite access from your employees.
Media servers (Plex) and HTPC (couchpotato, sonarr, SABnzbd, headphones) all in one solutions secured with a VPN.
For Plesk you are also at the right address.
Other areas of expertise are:
* Homeassistant
* FreeNAS, ZFS, VMs and jails
* Unraid, VMs and dockers and ZFS
* Ubuntu/linux in general
* Webservers, Apache/Nginx
* Home automation
* Home media servers
* NAS
Can provide hosting at a small monthly fee.