As part of our team, you will take on the following responsibilities: You are responsible for the operation, continuous development, and hardening of our enterprise‑wide PKI landscape (on‑premises and cloud).You design, implement, and operate Azure‑based PKI services, in particular Microsoft Cloud PKI and Microsoft Intune Certificate Lifecycle Management.You integrate certificate services into modern zero‑trust architectures.You develop and implement secure certificate and key management processes.You support the modernization of our identity and security infrastructure, especially in hybrid Azure environments.You work closely with security and infrastructure teams to establish secure and automated certificate workflows.You actively contribute to IT security projects and create security and architecture concepts.In close collaboration with the Group Information Security Office, you ensure compliance with regulatory and internal security requirements.You drive continuous process optimization, automation, and documentation.