Fifty5Blue in Madrid, Spain, is seeking a DevOps Engineer to maintain production systems and 24/7 Azure and Linux environments, including collaboration with external suppliers. The role emphasizes monitoring, security, and documentation, with occasional client meetings. You will manage Azure AKS, VMware, and storage, contribute to extensions, and participate in sprints and on-call rotations (remote only). English is required; knowledge of French or German is a plus.