Jacob is a postdoctoral fellow at the Centre for Social Critique, Humboldt University Berlin, where he co-directs an interdisciplinary research project with Rabea Berfelde on Socialization in Theory and Practice: Democratizing Access to Land and Energy, funded by the Gerda Henkel Foundation. Previously, he was an assistant professor of Practical Philosophy at the Carl von Ossietzky University of Oldenburg and a member of the DFG-funded Collaborative Research Centre SFB 294 Structural Change of Property. He is the author of The Concept of Property in Kant, Fichte, and Hegel: Freedom, Right and Recognition (Routledge, 2024) and All Things Are Nothing to Me: The Unique Philosophy of Max Stirner (Zero, 2018), and co-editor of Umkämpftes Eigentum: Eine gesellschaftstheoretische Debatte (Suhrkamp, 2025, with Niklas Angebauer and Tilo Wesche). He is currently writing about many topics, including the normative foundations of socialization, the subjective consequences of climate change, democratic ecological planning, the critical theory of Fichte, and the moral philosophy of Günther Anders. At the Centre, he organizes events on Green Capitalism, The Politics of Critical Theory, and Socialization and Social Theory. He earned his PhD at the New School for Social Research in New York.