I'm always learning new things, getting more knowledge and experience by working on challenging scenarios, I have worked with Mikrotik Routers and Switches, Cisco products (R&S and Voice related solutions), Linux Services such as File server, VPN Tunnels, VLAN, DNS, DHCP, Captive Portal, Load Balance, Failover, Firewall, RADIUS and etc. on Debian, CentOS, Ubuntu and ARM based SoCs like Raspberry pi with focus on setting up network services to run flawlessly as a headless server, Virtualization on VMware, Hyper-V, Proxmox, KVM and Microsoft Windows Server and Client management.
Note: I joined this site about 10 years ago, right when I was pretty much a beginner in this field, since then until a few months ago I almost never got on because I was really busy learning, working and experimenting.