IONOS in Barcelona is seeking an Engineering Manager to lead a high‑impact Linux infrastructure team. You will shape strategy, rebuild the team, and drive migration of the Telekom platform while maintaining operational continuity. This senior role blends 60% management and 40% hands-on technical work, with autonomy to define processes, IaC standards, on-call policies, and risk mitigation across 500+ servers, Ceph storage, and OpenStack clusters.