Ratko Parenta

Ratko Parenta

System administrator, Sound Engeeneer, Web developer

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location of Ratko ParentaCroatia

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  • Timeline

  • About me

    Senior system and network administrator at HAC

  • Education

    • MIOC - Zadar

      1988 - 1992
  • Experience

    • Radio Dalmacija

      Aug 1995 - Mar 1999
      System administrator, Sound Engeeneer, Web developer
    • Virtualis d.o.o.

      Mar 1999 - Apr 2003
      Co-Founder

      Web design, Multimedia, Software, Hardware

    • Croatian Motorways

      Jul 2003 - now
      Senior Network Systems Administrator

      - Updating and monitoring user accounts - Maintenance, management of the Critical Windows based Server Environment - Designing, implementing and managing Active Directory - Creating and administrating Microsoft Exchange email accounts - Maintaining up to date Antivirus levels on all machines - Management of the daily data backup and retrieval scheme - Supporting a multi site IT infrastructure of at least 1200 employees - Responsible for networking, design, installation and maintenance services - Maintain the companies network infrastructure - Configuration and testing of any new hardware and software - TCP/IP networking and hardware maintenance and repair - Firewall administration - Administration VOIP - Installing and operating Windows desktop and server operating systems - Applying patches in accordance with company procedures - Liaising & meeting with external suppliers of IT services - Monitoring the progress of third party maintenance contract suppliers - Hyper-V Virtualization - Training employees Show less

    • Algebra

      Jul 2005 - now
      IT Trainer

      Lecturer: Windows 7, Windows 2008 Server, Networking, DHCP, DNS, Active Directory, Windows security, Firewall...

  • Licenses & Certifications

    • System and Network administrator - Specialist

      Algebra
      Apr 2013
    • PR373: ISO/IEC 27001:2022 Lead Auditor Certificate (ISMS)

      TÜV NORD CERT
      Mar 2025
    • Cisco Certified Network Associate CCNA

      Cisco
      Mar 2006