Senior IT Systems Administrator
About this job
Your mission You are the owner of our entire IT infrastructure — on-premises, in our co-located data center, and in the cloud — and shape it to enable our company to further grow and succeed. You manage our hardware infrastructure and office IT, including servers, workstations, notebooks, and networking. This is a senior, hands-on role: you design and improve our infrastructure, and you carry out the technical work yourself. Your responsibilities • Design, implement, operate, and maintain infrastructure across on-premises environments, our co-located data center racks, and cloud services, including Microsoft 365. • Manage the lifecycle of servers, storage systems, networking equipment, workstations, and notebooks, including provisioning, maintenance, upgrades, and decommissioning. • Monitor system availability, capacity, and performance, particularly across network and storage infrastructure. Troubleshoot issues, identify bottlenecks, and implement improvements. • Design and maintain identity, authentication, authorization, group membership, and access provisioning processes. • Automate infrastructure provisioning, configuration, and maintenance using infrastructure-as-code and configuration-management tools such as Terraform/OpenTofu and Ansible. • Develop scripts and small internal tools or services to automate recurring tasks, integrate systems, and improve operational workflows. • Define and implement infrastructure security controls, backup and recovery procedures, and measures to maintain service availability and data integrity. • Automate workstation provisioning and configuration, manage endpoint software and settings, and provide hands-on support for office IT issues.When something needs to be implemented or fixed, you take care of it directly. Your profile • At least five years of relevant professional experience in systems administration, IT infrastructure engineering, or a comparable role. • Strong Linux administration skills, including troubleshooting and maintaining production systems. • Practical experience with container technologies such as Docker or Podman. • Experience with infrastructure as code and configuration management, for example Ansible or Terraform/OpenTofu. • Solid knowledge of network architecture and administration, including VLANs, firewalls, routing, and VPN technologies such as WireGuard. • Experience designing, implementing, and operating on-premises infrastructure and cloud services, including appropriate security controls. Experience with SaaS infrastructure, such as Microsoft 365, is a plus. • A sound understanding of identity and access management, backup and recovery, and infrastructure hardening. • A hands-on, independent, and structured way of working, with the ability to take ownership of the full lifecycle of infrastructure topics. • Proficient English and at least B2-level German. • Based in Munich or the surrounding area, with the ability to attend the office at short notice when on-site support is required. Nice to have • Experience with monitoring and observability tools such as Zabbix, Prometheus, Grafana, or OpenTelemetry, including alerting and incident diagnosis. • Experience deploying or operating GPU servers or GPU clusters. • Proficiency in Python or another scripting language for operational automation. Why us? • Technology that matters: Your work provides the reliable infrastructure behind software that enables innovation in medical imaging and helps bring cutting-edge research into clinical practice. • Ownership instead of micromanagement: Shape our IT infrastructure and standards, take responsibility for improvements, and put your ideas into practice yourself. • Short decision-making paths: We work pragmatically, collaboratively, and without unnecessary bureaucracy. • Flexibility: Flexible working hours and a hybrid work model let you balance remote work with the on-site support this role requires. • A team that supports each other: Join a collaborative, open-minded team where people enjoy working together and helping one another succeed.