\section{Technical Skills}
\cvdoubleitem{Infrastructure}{Virtualisation including VMWare, KVM, Xen HP DL-series and blade chassis; Dell FX mini-blade chassis; Dell R-series servers; Sun E10K, V-Series, Enterprise Series Servers}{Storage}{HP Equallogic, EMC SANs, BMC Patrol, Docker, Joyent SmartDC, elasticsearch}

\cvdoubleitem{Server Software}{Apache, nginx, BIND, PowerDNS, dnsmasq, Sendmail, exim, Postfix, Dovecot, Sun Java Enterprise System, OpenLDAP, FreeIPA/389DS}{Databases}{MySQL/MariaDB PostgreSQL, SQLite, Microsoft SQL Server, Sybase ASE, Oracle 8 9i 10g, Redis, MongoDB}

\cvdoubleitem{Operating Systems}{Debian Linux, CentOS/RHEL/Suse, Solaris 8/9/10, OpenSolaris/Illumos, SmartOS, Free/Open/NetBSD, Mac OS X, Windows XP/Vista/7/8/10, Windows Server 2003/2008/2012}{Networking} {TCP/IP (v4 and v6), Ethernet, Fibre Channel, Firewalls, iSCSI, AoE, VPNs, IPSEC, Novell Netware, SNMP, Cisco IOS, Juniper JUNOS, Citrix Netscaler, Fortinet firewalls, Riverbed Stingray}

\cvdoubleitem{Network Filesystems}{NFS, Samba, Ceph}{Telephony}{Asterisk VoIP, Cisco VoIP hardware, Avaya PABX, GSM SMS and call gateways}


\cvdoubleitem{Development}{vim, IntelliJ, Eclipse, git, mercurial, subversion, cvs, CI/CD, \LaTeX\ }{Packaging}{RPM, DEB, Docker Images, SNAP, AppImage}

\cvdoubleitem{Automation}{Icinga/Nagios, Prometheus, puppet, ansible, bcfg2, Docker, k3s}{HPC}{Cluster Computing, High Availability, Disaster Recovery Planning}

\cvdoubleitem{End-user Hardware}{Generic PC and Apple Hardware, Printer repair, Android devices, PABX Maintenance}{Server Hardware}{HP and Dell servers, Sun Microsystems products, Structured Cabling, Discrete \& SMT Soldering, Datacentre installation, Tidy rack cabling}

\cvdoubleitem{Shell Scripting}{bash, csh, ksh, dash, awk \& sed}{Programming Languages}{Perl, Python, Ruby, R, Javascript/ECMAScript, PHP, Haskell, C}