René Biersack

Berufserfahrung von René Biersack

• Bis heute 16 Jahre und 10 Monate, seit Aug. 2007

  CITI-ext. Consultant & Analyst

  Citigroup

  A multiple award winning, best of breed data centre designed and operated to achieve maximum ROI and industry leading efficiency & reliability

• Bis heute 18 Jahre und 3 Monate, seit März 2006

  Geschäftsführer

  WSTN wi-fi | security | telekommunikation | network

• 2 Monate, Juli 2014 - Aug. 2014

  CITI-ext. Consultant & Analyst (WES Closure Project)

  Citigroup

  Closing of a former Citi disaster recovery site following the migration of all services into regional data centers. Implementing a single-shot change affecting 50+ network devices around the globe incl. decommissioning of 20+ network devices which did form the disaster recovery network. Reconfiguring the regional backbone network to reflect the network infrastructure changes.

• 7 Monate, Jan. 2014 - Juli 2014

  CITI-ext. Consultant & Analyst (ARISTA Spine/Leaf Project EMEA)

  Citigroup

  Deploy an Arista Spine/Leaf infrastruture in Citi's EMEA data centers as part of a larger effort to deploy a highly scalable server pod architecture in EMEA. Deploy a set of Juniper MX 960 routers in each data center in EMEA to support the linkage between the Spine infrastructure and Citi's Tier 2 Network.

• 2 Jahre, Jan. 2011 - Dez. 2012

  CITI-ext. Consultant & Analyst (EDC Closure Project)

  Citigroup

  Citi's former European Data Centre in Germany was closed under this project after all remaining services were migrated to the new Frankfurt Data Centre.

• 5 Monate, Feb. 2011 - Juni 2011

  CITI-ext. Consultant & Analyst (iXE Closure Project)

  Citigroup

  Closing project for one of Citi's COB Data Centres in Germany. Project included the migration of existing services to the new Frankfurt Data Centre.

• 1 Jahr und 6 Monate, Aug. 2006 - Jan. 2008

  Field Service Engineer

  Deutsche Telekom AG

• 8 Jahre und 1 Monat, Aug. 1998 - Aug. 2006

  Kaufmann im Groß- & Außenhandel (IHK)

  Ammon Beschläge-Handels GmbH