Piotr Jezierski

Network Security Engineer at Reist Telecom GmbH
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Contact Information
us****@****om
(386) 825-5501
Location
Zurich, Switzerland, CH
Skills

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Credentials

  • Cisco Certified Network Associate Routing and Switching (CCNA)
    Cisco
  • Cisco Certified Network Associate Security (CCNA)
    Cisco
  • Cisco Certified Network Professional Routing and Switching (CCNP-RS)
    Cisco
  • Cisco Certified Network Professional Security (CCNP-S)
    Cisco

Experience

  • Reist Telecom AG
    • Switzerland
    • IT Services and IT Consulting
    • 1 - 100 Employee
    • Network Security Engineer
      • Nov 2017 - Present

  • Sunrise Communications AG
    • Switzerland
    • Telecommunications
    • 700 & Above Employee
    • Core Network
      • Mar 2014 - Oct 2017

      Packet Switched Network and network security, Juniper network Packet Switched Network and network security, Juniper network

  • Huawei
    • China
    • Telecommunications
    • 700 & Above Employee
    • Core Network
      • Sep 2012 - Feb 2014

  • Sunrise Communications AG
    • Switzerland
    • Telecommunications
    • 700 & Above Employee
    • System Engineering
      • Mar 2010 - Aug 2012

  • Bell
    • Canada
    • Telecommunications
    • 700 & Above Employee
    • Core Network Engineer
      • Sep 2009 - Oct 2009

  • Nokia
    • Finland
    • Telecommunications
    • 700 & Above Employee
    • Core Network Planner
      • Sep 2008 - Aug 2009

  • Sunrise Communications AG
    • Switzerland
    • Telecommunications
    • 700 & Above Employee
    • Core Network Senior Engineer
      • 2006 - Aug 2008

      SwitzerlandProject Managment for CS/PS Mobile Core Network.IP design for packed switched core network.

    • Back office core Engineer
      • 2001 - 2006

      SwitzerlandNSS Configuration Team for PS/CS Mobile Network.

  • DiAx
    • BSS configuration engineer
      • 2000 - 2001

      Switzerland - BSS configuration team. Switzerland - BSS configuration team.

  • Nokia
    • Finland
    • Telecommunications
    • 700 & Above Employee
    • BSS Support Engineer
      • Jun 2000 - Nov 2000

      GermanyBSS Customer Support GermanyBSS Customer Support

  • Nokia
    • Finland
    • Telecommunications
    • 700 & Above Employee
    • BSS Support Engineer
      • 1999 - 2000

      Nokia China - BSS Mobile Network on site support / trainer. Nokia China - BSS Mobile Network on site support / trainer.

  • Polkomtel
    • Poland
    • Telecommunications
    • 700 & Above Employee
    • OMC Engineer
      • 1996 - 1999

      Poland Poland

  • AT&T
    • United States
    • Telecommunications
    • 700 & Above Employee
    • Outside plant engineer
      • 1994 - 1996

      Poland Poland

  • Bank Gdanski
    • Inspektor
      • Mar 1994 - Jun 1994

      Gdansk - Departament Telekomunikacji Gdansk - Departament Telekomunikacji

Education

  • Gdynia Maritime University
    electrics
    1989 - 1994

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