• Operate and evolve our EKS-based Kubernetes platform • Design and develop CI/CD systems supporting websites, services, and Thunderbird desktop releases • Write and maintain infrastructure in Pulumi and/or Terraform/OpenTofu across multiple AWS accounts • Operate and evolve our observability stack and partner with engineering teams to incorporate instrumentation and monitoring into service design • Apply security-conscious infrastructure practices • Diagnose and debug production incidents and drive root-cause analysis • Participate in on-call rotation and collaborate with SDEs and fellow SREs • Contribute to runbooks, architecture documentation, and team processes

• Oversee the design, implementation, and maintenance of cloud infrastructure across AWS and Azure • Lead and manage a team of DevOps engineers — assigning tasks and ensuring best practices in deployment, monitoring, and security • Define and enforce CI/CD processes and infrastructure automation standards using Terraform • Own the implementation and governance of Landing Zones in both AWS and Azure • Ensure HIPAA compliance and security policies are followed across all environments • Drive adoption of observability tools like DataDog and establish logging standards • Coordinate incident response and root cause analysis for infrastructure issues • Build SLA frameworks for critical services and define strategies for auto-scaling, failure recovery, and disaster recovery • Collaborate with stakeholders to align DevOps strategies with business needs • Review and approve technical documentation produced by the team

• Build and enhance automated provisioning for servers and network infrastructure across physical environments and cloud platforms (AWS, GCP). • Improve and evolve CI/CD pipelines for infrastructure provisioning and software deployment. • Develop and maintain infrastructure automation using tools such as Ansible. • Support and manage server, network, and platform reliability across the organisation. • Work closely with hardware vendors, telecom providers, and third-party service providers. • Coordinate procurement, deployment, and lifecycle management of infrastructure hardware. • Contribute to an engineering culture focused on automation, reliability, and continuous improvement.

• Mitverantwortung für die Systemverfügbarkeit: Du trägst aktiv zur Verfügbarkeit, Zuverlässigkeit und Effizienz unserer komplexen Systemarchitektur bei, die aus etwa 70 Servern bei Hetzner besteht. • Wartung und Automatisierung: Du unterstützt die Wartung und Automatisierung unserer bestehenden Infrastruktur, die auf Technologien wie Ubuntu, Percona MySQL Cluster, MinIO, Elasticsearch, Redis, NGINX, HAProxy, TiDB, Clickhouse und Kubernetes basiert. Dabei bringst du deine Ideen zur Optimierung ein. • Monitoring und Analyse: Du verbesserst unsere Monitoring-Strategien und führst umfassende Fehleranalysen durch. • Hohe Verfügbarkeit: Du bist bereit, in Ausnahmefällen auch nachts aufstehen zu müssen, um sicherzustellen, dass unsere Systeme reibungslos laufen. • Software Entwicklung: Mehrjährige Erfahrung in einer oder mehreren Programmiersprachen (z. B. Rust, Java, Go, Typescript) ist notwendig.