Mitja Polajnar

5G Core Network Expert at CITYCOM Telekommunikation GmbH
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Contact Information
us****@****om
(386) 825-5501
Location
Vienna, Vienna, Austria, AT
Languages
  • English Professional working proficiency
  • German Professional working proficiency
  • Slovenian Native or bilingual proficiency

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Experience

  • CITYCOM Telekommunikation GmbH
    • Austria
    • IT Services and IT Consulting
    • 1 - 100 Employee
    • 5G Core Network Expert
      • Nov 2020 - Present
  • Huawei Technologies Austria
    • Evolved Packet Core service engineer
      • May 2016 - Oct 2019
  • Si.mobil d.d.
    • Packet Core network and services senior expert / solution architect
      • Apr 2008 - Oct 2015

      Packet Core network and services solution architect Planning and operations of Packet Core network and services / Team lead Main projects (design, planning and implementation, project lead): - Evolved Packet Core (MME/SGW/PGW) - all IP 2G/3G Packet core network (SGSN/GGSN, IP backbone) - IPv6, IPv4v6 - Network security - LTE data roaming - E2E QoS - Packet core network geo-redundancy - VoLTE trial Packet Core network and services solution architect Planning and operations of Packet Core network and services / Team lead Main projects (design, planning and implementation, project lead): - Evolved Packet Core (MME/SGW/PGW) - all IP 2G/3G Packet core network (SGSN/GGSN, IP backbone) - IPv6, IPv4v6 - Network security - LTE data roaming - E2E QoS - Packet core network geo-redundancy - VoLTE trial

  • Iskratel / Siemens AG
    • Mobile communications system engineer
      • Oct 1997 - Mar 2008

      Worked as developer and system engineer for SIEMENS AG in the areas of: -> Media Gateway (2005-2007) Main activities: - Test coordination / functional test (Location: Berlin) - Test coordination / system test (Location: Vienna) - Test coordination / interoperability test (Location: Munich) for first version of Siemens Media Gateway solution -> Network Management (2003-2005) Main activities: - Test coordination / functional and system test for project CBR (Centralized Backup and Restore of Network elements) -> Mobile Packet Core (1999-2003) Main activities: - Project integration for first version of Siemens GPRS solution; trial project for operator Era/PTC (T-Mobile) Poland (Location: Vienna, Warsaw) - 3G PS FPF testing (Location: Berlin) - 2G and 3G Mobility management functional testing (Location: Bad Hersfeld) Show less

Education

  • University of Ljubljana, Faculty of Electrical Engineering
    B.Sc./Dipl.Ing., Electrotechnical engineering
    1990 - 1997

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