Data centre server infrastructure and management, Linux OS distributions and scripting skills., Server Virtual Platforms, HyperV, KVM / Proxmox, VCenter, Docker., Traditional and virtual storage technologies, SAN, NAS, iSCSI, Ceph, PetaSAN, RAID, Managed Desktop technologies including RDS and Citrix, Active Directory (AD), Internet Services - email Antivirus/spam, Domain Name Server (DNS), Web Hosting, Automation technologies including RPA, Ansible, Kubernetes, SQL databases, SQL scripting, general application support., MS 365 and AWS., Cisco switching and routing infrastructure and protocols., VLAN/VPN, Firewall and Security Appliances, Cloud PBX implementations, VOIP Technologies SIP Signalling, SBCs, RTP, L2/L3 QOS, Voice Codecs, BRAS / BNG Technologies, Radius AAA Server, DHCP., Fibre transport systems and CWDM/DWDM multiplexors, Access services (GPON, DSL, VDSL, LTE,)