Research & Development Engineer Accommodation BT GS (2006-2009):> Worked on programs to decrease (80 %) carbon emissions till 2020 > Developed / implemented measurement concept for analyzing / tracking energy efficiency> Executed international audit program regarding efficiency and CO2 emissions> Was involved in the development of the code of conduct best practices as core member of the energy task force group in ETNO (EU).Supervisor Design and Building BT GS (2000-2006):>Supervised the design and building of a Data Centre (6,6 MW expandable to 13,2 MW)>Supervised the (re)-design / (re)-building of several installations in the Europe, US and Asia>Lead / executed international audit programs to increase resilience. Implemented findings>Investigated implementation of high density racks>Implemented measures to get technical buildings sustainable>Re-designed and re-built critical site up to ultra high resiliency>Gave strong support to cost efficient maintenance concepts >Handled severe calamities as crises manager for GSNM>Advised third parties that requested BT for assistance.Design & Implementation Engineer BT Global Services (1997-2000)