Olaf Olden is a sustainability technologist whose work explores the intersection between sustainability and parametric design. He completed his master’s degree at TU Delft in 2021, following his initial studies at the University of Applied Sciences in Arnhem. Driven by a longstanding goal to contribute to a more sustainable built environment, Olaf has shaped his career around this mission.He began as a sustainability consultant, focusing on the social and environmental performance of buildings, public spaces, and BREEAM certification processes. This experience led him to a similar role at MVRDV, where he further developed his expertise. A pivotal chapter in his professional journey was his time at OMRT, where he gained in-depth experience with parametric design, a central pillar of his work today. Currently, Olaf works as a Sustainability Technologist at UNS, where he develops practical tools that enable architects to embed sustainability into their design processes. He also shares his knowledge as a teacher at TU Delft and through his own company, MisterMetric. Alongside this, he runs a YouTube channel under the same name, aiming to make parametric design and sustainability concepts more accessible to a broader audience. Through all of these efforts, he hopes to contribute to the conversation about how technology can drive a more responsible future for architecture.