Viorel Lefter

Viorel Lefter

IT Administrator

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  • Timeline

  • About me

    Principal Technical Support Engineer at Oracle

  • Education

    • University of Bucharest – CREDIS Department

      2007 - 2009
      Master Security of IT Systems

      - CISCO-CCNA1: Networking Fundamentals- CISCO-CCNA2: Routing Protocols and Concepts- CISCO-CCNA3: LAN Switching and Wireless- CISCO-CCNA4: Accessing the WAN- CISCO : Netwok Security 1 and 2- MOC 2274: Managing a MS Windows Server 2003 Environment - MOC 2277: Implementing, Managing and Maintaining a Windows Server 2003 Network Infrastructure - MOC 2275: Maintaining a Microsoft Windows Server 2003 Environment - MOC 2823B: Implementing and Administering Security in a… Show more - CISCO-CCNA1: Networking Fundamentals- CISCO-CCNA2: Routing Protocols and Concepts- CISCO-CCNA3: LAN Switching and Wireless- CISCO-CCNA4: Accessing the WAN- CISCO : Netwok Security 1 and 2- MOC 2274: Managing a MS Windows Server 2003 Environment - MOC 2277: Implementing, Managing and Maintaining a Windows Server 2003 Network Infrastructure - MOC 2275: Maintaining a Microsoft Windows Server 2003 Environment - MOC 2823B: Implementing and Administering Security in a Microsoft Windows Server 2003 Network - MOC 2830B: Designing Security for Microsoft Networks Show less

    • POLITEHNICA University of Bucharest

      1980 - 1985
      Diplomat Engineer TCM
  • Experience

    • Bomax Group (Electricom SA; Bomax Trading; Comat SA Giurgiu)

      Feb 2002 - Mar 2008
      IT Administrator

      - Administration of Linux Postfix mail, Apache, DNS, Squid servers, firewall and approximately 50 Windows workstations and Windows 2000 servers, helpdesk for Windows applications; - Manager of Quality System – ISO 9001:2001; - Application Administrator – ERP system Platphorma- Project Manager - implementation of ERP Platphorma at Comat SA Giurgiu- Programming in FoxPro database

    • ComputerLand Romania

      Apr 2008 - Sept 2013
      IT Trainer for Windows Desktops, Servers and Virtualization

      • IT Trainer for the following Microsoft products and technologies:- Windows XP and 7 – Planning, deployment, installing, configuring, maintainig and troubleshooting- Windows Server 2003, 2008 and 2008 R2 - Planning enterprise infrastructure, installing, configuring, maintainig and troubleshooting server and server roles and features (File Services, DNS, Hyper-V,DFS,etc.)- Active Directory - Planning, deployment, installing, configuring, maintainig and troubleshooting- Networking – Configuring and Troubleshooting roles and servicies (IPv4, IPv6, DHCP, Routing and Remote access, NAP, Network Load Balancing, etc.)- Virtualization - servers, aplications and Terminal Services, management with SCVMMFormer courses: - IBM AIX 5.3 and 6.1 Operating System - Tivoli Monitoring 6.2 for Operators and AdministratorsI also participate at implementing diferent projects, like: - MEDSCEN Project at UNAP (National Defense Academy) - Linux and Windows Server 2008 administration - IQ Management - DS 4700 Storage, VIOS 2.0 and AIX 5.3 installation and configuration Show less

    • Asociatia Manufuture Romania

      Jun 2010 - Feb 2013
      Administrator IT and IT Project Manager assistant

      - Asociatia ManuFuture Romania * Network and IT system planning (a mixed infrastructure with Windows and Linux servers, VPN, etc.). * Instalation and configuration of network infrastructure servers and services like Active Directory and Group Policies for AD, DNS, DHCP, Print Server, WSUS, etc. * I Install and configure Hyper-V and virtual servers, Exchange 2010, Forefront Client and Forefront Server for Exchange. I configure firewall, email and web filtering on virtual Linux server.* Install and configure IBM Storage - DS-3950* My actual tasks include servers administration, trobleshooting and monitoring (200 workstations and 7 servers). Show less

    • Insoft Development and Consulting SRL

      Sept 2013 - May 2016
      IT Trainer and Administrator

      Consulting for different projects (design, planning and installing software and hardware solutions)IT administration- Linux flavors: Ubuntu, CentOS, FreeBSD- Installing and configuring different services and applications like: Apache, ngnix, haproxy, BIND, MySQL, MariaDB, PHP, iptables, pf firewall, Postfix, bash scripting, Pydio, etc.- Windows servers, Active Directory, GPO, powershell scripting, VPN, NPS (Radius), MS SQL, Hyper-V, vsphere VMware, ...- Installing and configuring switches, routers, firewalls, etc.Ocasionaly for different companies IT Trainer for the following Microsoft products and technologies:- Windows 7si 8 ; Windows Server 2008R2 and 2012- Virtualization - Hyper-V - management with SCVMM- SCMM Show less

    • InCrys

      May 2016 - Dec 2017
      System Administrator

      - IT administration of Windows and Linux servers on several IBM projects- Boarding, patching servers and installing applications using IBM procedures- Resolving hardware and software level 2 and 3 incidents on Windows and RedHat Linux servers- PowerShell, bash and python scripts to automate different tasks or to extract data from Windows and Linux Servers. - Configure and administrate Idera backup solution- Writing different procedures

    • Oracle

      Dec 2017 - now
      Principal Technical Support Engineer

      Oracle HW Support Systems Engineered StorageTroubleshooting ZFS Storage Appliance# Software troubleshooting - Solving issues related to different services, like : NFS, SMB, Active Directory, LDAP, Replication, etc - Solving degraded pools issues - Issues related to shares and LUN's access# Hardware troubleshooting - Firmware updates - Checking ILOM logs and snapshots - Creating tasks for faulted parts replacement

  • Licenses & Certifications

    • Configuring and Deploying a Private Cloud with System Center 2012

      Microsoft
      Apr 2013
    • MCSE- Microsoft Certified Solutions Expert - Private Cloud

      Microsoft
      Apr 2013
    • Monitoring and Operating a Private Cloud with System Center 2012

      Microsoft
      Mar 2013
    • MCITP - Microsoft Certified IT Profesional - Virtualization Administrator on Windows Server 2008 R2

      Microsoft
      Nov 2012
    • Microsoft Certified Solutions Associate (MCSA) -Windows 7 & Server 2008

      Microsoft
      Apr 2012
    • TS: Windows Server 2008 R2, Desktop Virtualization

      Microsoft
      Apr 2012
    • TS: Windows Server 2008 R2, Server Virtualization

      Microsoft
      Nov 2011
    • TS: Windows Server 2008 Active Directory, Configuring

      Microsoft
      Jun 2011
    • MCITP - Microsoft Certified IT Professional - Windows Server 2008

      Microsoft
      May 2011
    • Pro: Windows Server 2008, Server Administrator

      Microsoft
      Apr 2011
    • TS:Windows Server 2008 Network Infrastructure, Configuring

      Microsoft
      Feb 2011
    • MCITP - Microsoft Certified IT Professional Windows 7

      Microsoft
      Dec 2010
    • PRO: Windows 7, Enterprise Desktop Administrator

      Microsoft
      Dec 2010
    • MCT - Microsoft Certified Trainer

      Microsoft
      Apr 2009
    • Programming for Everybody (Getting Started with Python)

      Coursera
      Feb 2017
      View certificate certificate
    • Python Data Structures

      Coursera
      Mar 2017
      View certificate certificate
    • Installing and Configuring Windows Server 2012

      Microsoft
      Jul 2013
    • MCT: MCT Enrollment

      Microsoft
      Apr 2009
      View certificate certificate
    • Using Python to Access Web Data

      Coursera
      Apr 2017
      View certificate certificate