Our People - AEI Software Phil Dewar With IRRICAD since the start, Phil has spent many years designing and developing IRRICAD products and supporting IRRICAD users worldwide. Jo Vivier Jo provides primary customer support and training for IRRICAD. She has been involved with IRRICAD since 1998, both as a support consultant and irrigation designer. Dan Crosby Our newest team member. Originally from the UK, Dan has a background in engineering software and chemical engineering. He has been developing IRRICAD since 2007.