Hajo Haller is an experienced architect currently serving at POOLARSERVER GmbH since July 2021. Previously, Haller worked as an office manager at agn Gruppe from July 2019 to June 2021, where responsibilities included leading projects for new buildings in education and research and development. Prior to that, Haller held the role of team leader at HDR GmbH from March 2009 to July 2019, managing international large hospital projects exceeding €500 million and several other significant hospital developments. Haller began the professional career as a project architect at Architekturbüro Prof. Wolfgang Kergaßner from June 2007 to February 2009. Haller holds a Diplom-Ingenieur degree in Architecture from the University of Stuttgart, completed in 2007.