Today that's the Digital Foundation at Schwarz Digits: a platform that unifies a live model of the tech landscape with its provisioning layer and the developer tooling on top. And secure communication architecture based on MLS. Before that, Kaufland's first customer-facing app and its first cloud-native system, and iOS vulnerability research that surfaced four CVEs in Apple's iOS.

Small high-performance teams, substance over process. A clear sense of what's actually needed, not just what's on the plan. An enduring interest in what makes systems hold up under pressure.