Holger Willenborg

About

Experience

• Blue Technologies Ltd. & Co. KG (Münster, North Rhine-Westphalia, Germany · On-site)
  • Teamlead Cloud Operations
    May 2024 - Present · 2 yrs 3 mos

  • Senior Systems Engineer
    Nov 2023 - May 2024 · 7 mos

• Armacell (25 yrs 2 mos)
  • Corporate IT Infrastructure Project Manager
    Nov 2021 - Oct 2023 · 2 yrs

  • Corporate IT Infrastructure Manager
    May 2016 - Nov 2021 · 5 yrs 7 mos

  • IT Manager (Technical)
    Aug 2010 - Apr 2016 · 5 yrs 9 mos

    - International IT infrastructure projects - Leader of IT Technical Team -- IT procurement -- Licensing -- Security -- WAN / Remote VPN -- User Support, Hardware Lifecycle (client hardware / server hardware) -- Virtualized Infrastructure operation, projects / vmware ESX -- Telecommunication (mobile, landline) -- Citrix / Terminal Server operation - IT strategy - IT Risk Management - Monitoring - IT infrastructure outsourcing - SAP Basis (printing, user/authorization management) - SAP MM (global IT key user for rollout until 2013)

• Quality Management Assistant at Siemens
  Aug 1991 - Oct 1997 · 6 yrs 3 mos

  - quality management employee for electromachanical relays production (e.g. for automotive use) - bachelor thesis: Software project in C++ for analysis of measurement data

• Unit Tester at IBM Deutschland GmbH
  Aug 1989 - Jul 1990 · 1 yr

  Unit Testing of Storage Devices for Mainframe Computers