Ariel Barrettino

Worldwide support troubleshooting customer's complex, critical and sensitive issues, performing root cause analysis and guiding customers to solve problems. • High Availability Clusters (SUSE Linux Enterprise Server + High Availability Extension) • High Availability for SAP Applications (SLES for SAP Applications). Also on SAP Resolve - resolve.sap.com As part of LinuxLab - sap-linuxlab.github.io • On Physical Servers, Virtual Machines (VMWare, Hyper-V, KVM) and Cloud based (Azure, AWS, Google Cloud)

Worldwide support, but mainly focused on customers from the Switzerland. UNIX/Linux System administration, support and troubleshooting in an HA environments, inlcuding 24x7 oncall duty. Some of the technologies I've worked with: UNIX OS: AIX. Linux OS: Red Hat Enterprise Linux and CentOS and Virtualization with VMWare. Clustering and HA: IBM PowerHA (HACMP).

Dedicated UNIX/Linux System administration, support and troubleshooting for the Cantabrian Health Service in Santander, Spain - www.scsalud.es Some of the technologies I've worked with: UNIX OS: Solaris. Linux OS: Red Hat Advanced Server and Enterprise Linux, and CentOS. Clustering and HA: SunCluster and Red Hat Cluster.

Dedicated UNIX / Linux System administration, support and troubleshooting in an HA environments, inlcuding 24x7 oncall duty, for EJIE (Basque Country Government Data Center) - www.ejie.eus/home/ Some of the technologies I've worked with: UNIX OS: Solaris, HP-UX. Linux OS: Red Hat Advanced Server and Enterprise Linux, Virtualization with VMWare. Clustering and HA: SunCluster, HP Service Guard and Metrocluster, Red Hat Cluster.

IBM Spain, Madrid, Spain - www.ibm.com (outsourced) Dedicated UNIX System administration, support and troubleshooting in an HA environments, inlcuding 24x7 oncall duty, for Orange (Mobile Phone Division of France Telecom). Some of the technologies I've worked with: UNIX OS: Solaris, HP-UX, Tru64 and AIX. Clustering and HA: SunCluster, HP Service Guard, Tru64-Cluster and AIX HACMP

Support and troubleshooting for hardware and software, inlcuding 24x7 oncall duty, for all customers in the Madrid and Basque Country regions, like: the Basque Country Government, Iberdrola, France Telecom, Madrid City Council, Spanish Air Forces, Spanish National Statistics Institute and others. Some of the technologies I've worked with: Solaris, HP-UX, Windows Server and Workstation.

System administration, support and troubleshooting, hardware and software, for the Vitoria-Gasteiz City Council's Building and Data Center. Some of the technologies I've worked with: Red Hat Advanced Server, Windows Server and Workstation.

Support and troubleshooting, hardware and software, based on the propietary application software developed for the pharmaceutical companies and pharmacies in the Buenos Aires province region. Some of the technologies I've worked with: MS-DOS and Windows Workstations.

Details available upon request.