Network Engineer, worked with Cisco routers/switches/Nexus, Windows/Linux servers on vCenter servers (VMware) and some Cisco Call Manager. Worked with all versions of Windows except pre 3.1.
Started with DOS several decades ago (before Windows 3.1 was mainstream), worked my way through Netware (was a Netware 3.12 CNE and just 2 tests away from MCNE).
Before my Network work, I did telephony with old 1A2 key systems, Mitel SX-100 PBXs, Hitachi DX 30/40 factory certified, Hitachi HCX. Moved on to Trixbox, ShoreTel, Allworx, FortiVoice (yuck). Now some Teams voice implementations.
Working at an MSP again after taking a break to work in corporate IT at a hospital (small one with 80 guest servers on 3 VMware hosts - Converged Network Adapters connected to Cisco Nexus switches, and setup FC on to EMC VNX SAN that I implemented. Fast, rock solid and amazing.
I'm at my third MSP, this one a midsized company, small enough to be nimble and personable but big enough to have a generous compensation package (for Montana that is).
ShoreTel (Mitel) UCSE. A+, Server+, Lenovo Workstation, desktop, laptop, low end and midrange server warranty certified. Sophos Firewall Architect/Engineer/Technician and lots of other Sophos certifications. Working on Azure certification now.