Since 2016, Gideon has served as a senior project leader and researcher at the Faculty of Engineering and the Centre of Expertise City Net Zero at the Amsterdam University of Applied Sciences (AUAS). He collaborated with the municipality of Amsterdam to develop an integrated physical-social approach for 32 deprived neighbourhoods (Ontwikkelbuurten) in Amsterdam and led the EU Cool Towns project. Gideon is currently a member of the Chair of Spatial Urban Transformation and served as the senior project leader for Sensing Streetscapes and Building4Wellbeing.com at AUAS. In this role, he led a team of researchers and a consortium of architecture and urban planning firms to explore how housing can enhance human well-being.

Gideon Spanjar has also been Professor of Innovation and Urban Green Space at Aeres University of Applied Sciences in Almere since 2020. His research group focuses on the governance and implementation of nature-inclusive urban development, with an emphasis on creating attractive living environments through nature-based solutions (NBS), climate adaptation, and bio-based housing. This focus is evident in various projects, including Biodiverse Cities (funded by EU-Interreg), Future-Proof (Biobased) Environment, Nature-Inclusive Area Development, Green-Blue City (financed by the Dutch government), and Excellent Green Healthy Living Environment (locally funded).

His research aims to redesign the built environment using ecosystemic thinking, biometric technology, and biobased innovation. The goal is to understand better how to restore biodiversity and improve human health and well-being in a changing climate. Gideon's work has been featured in several publications, including Urban Heat Atlas, Neuroarchitecture, and Nature-Inclusive Urban Development. More information here nai010.com.