Senior IT Systems Administrator

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.

About us

ImFusion GmbH is a growing company located in Munich, conducting research, development and consulting in advanced medical image computing technologies and computer vision. Our customers include small and large medical device companies as well as academic research labs. We wish to expand our team with talented and motivated people.

We are an equal opportunity employer and are committed to creating an inclusive and diverse workplace where everyone feels valued and empowered. We celebrate diversity and welcome applications from people of all backgrounds, regardless of ethnic origin, religion, gender, gender identity, sexual orientation, age, marital status, disability, or any other legally protected characteristic. Our goal is to foster a culture of belonging, where different perspectives drive innovation and success.

You think you can be a good fit? We'd love to hear from you!