Product & AI Security Engineer

Talon.One is hiring one of its first two security engineering hires to own the security of everything shipped to customers and third-party partners, from API authorization to AI features, on a multi-tenant platform powering promotions and loyalty for major European retail and travel brands. The role is hands-on, pairing directly with engineers and product managers to threat-model new features, own tenant isolation and API security across the Rule Engine and integration APIs, and act as security design authority for AI features. Responsibilities also include building automated cross-tenant and adversarial testing in CI, running vulnerability and patch response, and building application and AI security monitoring and detection. The role is based in Berlin on a hybrid basis.