- acting as Unix leader of US based energy company account, in contact with different teams, locations and third parties;- administration of environments running Unix/Linux servers, especially Red Hat, Oracle Linux and Solaris in On Premises and AWS platforms, with multiple systems also using Red Hat clusters and automation tools;- planning, managing and implementing changes related to updates, fixes, new installations, continual improvement or compatibility standards;- maintenance, creation and implementation of automation routines using Shell Script in hundred servers;- creation of procedures and internal/external documentations.

- acting as Unix leader of Vale account, in contact with different teams from multiples countries, mainly on Canada, United States and India;- mission critical environment administration, running Unix/Linux servers, specially Red Hat, Suse, Oracle Linux, HP-UX and Solaris in HPE Integrity Blade, Oracle and AWS platforms, with focus on SAP systems using Serviceguard clusters;- planning, managing and implementing changes related to updates, fixes, new installations, continual improvement or compatibility standards;- maintenance, creation and implementation of automation routines using Shell Script in hundred servers;- design, plan, installation and environment creation, besides work with architecture, transition, deployment teams and others;- creation of procedures and internal/external documentations.

- mission critical environment administration, running Unix/Linux servers, specially on HP-UX and RedHat in HP Integrity Blade and HP Integrity SuperDome platform, with focus on SAP systems using Serviceguard clusters;- working for one of the biggest miners in the globe, in contact with different teams from multiples countries, mainly on Canada, United States and India;- using ITIL methodology, in incident management, problem management, change management, service transition, configuration management, capacity management, deployment management, continual service improvement, etc;- planning, managing and implementing changes related to updates, fixes, new installations, continual improvement or compatibility standards;- maintenance, creation and implementation of automation routines using Shell Script in hundred servers;- design, plan, installation and environment creation, besides work with architecture, transition, deployment teams and others;- creation of procedures and internal/external documentations.

- support on Unix/Linux and Windows, installing and configuring operating systems, hardware devices in HP ProLiant, HP Integrity, HP Blades servers or HP Storageworks products;- administration of ERP Compiere;- monitoring, availabitity, environment backup and restores;- installation of backup devices, controllers, processors, memories, disk, interfaces, etc;- support to sales team in HP solutions;- carreer planning on HP certifications;- domain maintenance, including website, emails and hiring of providers;- on site support of Banco Cacique (Novembro/2003 - Janeiro/2008):- mission critical administration of HP-UX 11.23 systems in HP Integrity servers;- monitoring, high availabitity, backup and restore in cluster environment;- maintenance of Shell scripts;- creation of backup/restore routines, including automated restore of Oracle Databases, inventory, performance and backup/media reports, , security, etc;- internal documentation related to audit requests;- support case management and softwares updates control.