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Jianjun Wang

Jianjun Wang

NRO engineer

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location of Jianjun WangGreater Dublin

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  • Timeline

  • About me

    Core and Cloud/IMS services engineer at Ericsson, Ireland

  • Education

    • Changchun University of Post and Telecommunications

      -

  • Experience

    • Ericsson, China

      Nov 2000 - Nov 2005
      NRO engineer

      Network roll out of wireline and mobile network. Implementation on local and international exchanges; BSC/MSC/GMSC/HLR/M-MGW/RNC.

    • Ericsson, Ireland

      Dec 2005 - Feb 2018

      IMS network deployment and configuration, testing, upgrade, support and troubleshooting, high and low level design. Preparation of work instruction. Implementation on SBG/MRS/CSCF/SLF/HSS/MGC/iDNS/MTAS for fixed IMS and VoLTE. Global and local support for worldwide wireline network. CSR handling, analysis of the issue, troubleshooting, provide solution to the issue, emergency handling.

      • Core and Cloud/IMS senior services engineer

        Jan 2011 - Feb 2018

      • Wireline second line support engineer

        Dec 2005 - Dec 2010

  • Licenses & Certifications

    • • Cisco CCNA