Michał Szeliga

Experience

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  Jabil Global Services Poland Sp. z o.o.

  Jul 2010 - Aug 2010

  Technician

  Repair and testing of desktop and laptop computers hardware.

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  IT.expert Sp. z o.o.

  Jun 2011 - Dec 2011

  Support Technician

  Participation in the project "Zapewnienie infrastrukturyinformatyczno-telekomunikacyjnej doprzygotowania i obsługi PrzewodnictwaPolski w Radzie Unii Europejskiej".Technical support for delegates from EU. Prepare of network infrastructure, computers, printers.

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  Business Online Service Sp. z o.o

  Jul 2012 - Sept 2012

  Software Engineer

  Development of software for handling electronic documents. Programming in Java using Spring,Hybernate, JavaEE.

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  Atos

  Oct 2012 - Sept 2015

  2nd Line Support Engineer

  Unix/Linux Administrator.Management and administration of Unix / Linux servers, in particular: HP UX, Red Hat, SLES.Analysis and problem solving related to the operations of the application and Unix / Linux.Automate tasks using scripts and installation of servers using the tool Cobbler.Update technical documentation.Linux/VMware engineere.Management and administration of Linux servers (Red Hat)and VMware vSphere infrastructure.Managing infrastructure using of Red Hat Network Satelite.Analysis and problem solving related to the functioning of the systems.Linux/Unix Administrator Tooling.Installation, removing, modification monitoring for Linux / Unix servers.Administering infrastructure monitoring.Working in particular with the Nagios software and additional HP OpenView, IBM Tivoli and proprietary solutions. Show less

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  IBM

  Oct 2015 - Aug 2016

  Advisory IT Specialist

  Advisory in hardware requirements for TADDM application.TADDM application installation and configuration.Performing TADDM update and maintenance.Advisory in target system configuration and preparation for TADDM Discovery.Troubleshooting of discovery errors.Maintenance of TADDM Application.Creating environment reports.

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  Atos

  Sept 2016 - Apr 2020

  Senior System Engineer

  Administration & troubleshooting of operating systems, custom applications and toolsAutomation of repetitive daily tasks using Ansible.Automation of Linux servers installation using Puppet.Migration from Puppet to Ansible.Automation and service improvements.Creating technical documentation.Implementation of Foreman with two proxy into client enviroment.Update whole client enviroment.Incident, problem adn change management on production systemsDiagnosing, resolving and delivering root cause analysis for automatic alerts, issues and incidents.Installation and configuration of servers.Working in transition team to take over new clients.Work on one shift with the on-call (24x7). Show less

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  Nordcloud

  May 2020 - now

  Managed Cloud Engineer