Andrew Mackarel is currently a Project Manager in the Network Development group of HEAnet, the Irish Research and Education Network for the past 5 years. His work concerns planning and deployment of large networking projects and introduction of new services such as Bandwidth on Demand. He is a member of the Mantychore FP7 project team which is developing an open source FP7 funded Network as a Service Resource Management and Provisioning system for IP networks. Previously Andrew has worked for Bells Labs and Lucent Technologies as Test Manager in their Optical Networking Group. He has worked as a Principal Test Engineer with Lucent and Ascend Communications and Stratus Computers. He has over 30 years work experience in the Telecommunications and Computing Industries.