Salary: 50.000 - 65.000 € per year Requirements: Completed training in IT (e.g. Fachinformatiker für Systemintegration) or comparable background Initial professional experience (approx. 1–3 years) in IT support or system administration Knowledge of Linux administration Basic understanding of networking (LAN, WAN, VPN, TCP/IP) Basic scripting skills (Bash, Python) are a plus Experience with Mac, Windows, and Linux environments Familiarity with tools such as Office 365, Google Workspace, Slack Structured, solution-oriented way of working Strong communication skills and team mindset Good command of English and at least B2 German Responsibilities: 1st and 2nd level support for internal users Managing user accounts and access rights in line with IT security standards Supporting and maintaining IT infrastructure (hardware, software, networks) Administration and maintenance of Linux-based systems Monitoring systems and ensuring stable operations (e.g. icinga2) Supporting network infrastructure (LAN, WAN, VPN, firewalls) Handling onboarding and offboarding processes in collaboration with HR Troubleshooting and resolving technical issues across systems and users Working with tools such as Office 365, Google Workspace, Slack, Jira/Confluence Supporting office infrastructure and internal IT processes Technologies: AI Bash Confluence Hardware IoT Support JIRA LAN Linux Network Office 365 Python Security Slack TCP/IP VPN Windows AWS Cloud GCP More: We are a hyper-growth MarTech / AdTech scale-up based in Dortmund, building a next-generation platform at the intersection of AdTech, AI, and IoT. Our company connects digital media with the physical world and unlocks real-world consumer data. We pride ourselves on a collaborative, hands-on culture that feels more like a close-knit community than a corporate structure. With a strong focus on support, trust, and long-term development, we offer modern office environments and significant investment into your professional development. Our benefits include a competitive salary, gym card, JobRad, pension scheme, and a vibrant team culture with regular events. last updated 14 week of 2026