Dave Callaghan is a Cloud Solution Architect at Ensyst. He possess expertise in itil, solution architecture, virtualization, unix, firewalls and 29 more skills. Colleagues describe him as "Dave provided excellent systems administration to both Siemens Research and Open Telecommunications. He successfully managed a team that provided complex infrastructure and support to a large scale IT product development business. He had very good technical knowledge and showed excellent strategic thinking and planning skills. He managed difficult office relocations and computer room fitouts. Dave was an excellent operator who was held in high regard by his peers and… Show more"