As the central point of contact at the client, you take responsibility for the core of the IT infrastructure.
System Administration (hybrid): You are the expert for Windows and Linux server environments (operation, hardening, maintenance) and administer Windows clients as well as Linux systems for applications.
Network & Security: You design and operate networks (Dell OS10 switches: VLAN, routing, LACP) and manage SonicWall firewalls (VPN, rule-set optimization, firmware).
Automation: You enjoy automating manual processes with PowerShell, Bash and/or Ansible to increase efficiency.
Cloud & Projects: You actively support exciting Microsoft-technology projects (M365, Entra ID / Azure AD, Defender/Sentinel, Azure networking services).

Solid experience in both Windows AND Linux administration (operation, hardening, package management).
Strong know-how in network management (ideally with Dell switches) and experience working with firewalls (e.g., SonicWall).
Experience in automation using common scripting tools (PowerShell, Bash or Ansible).
Good knowledge of Microsoft technologies (M365, Entra ID, Azure).
A proactive, solution-oriented working style and the ability to independently drive initiatives.
Nice-to-haves (bonus points): Experience building CI/CD pipelines (e.g., Azure DevOps, GitLab CI).
Programming skills in Python or C# for tool development.
Basic experience operating Elasticsearch clusters.

Remote-first culture: Work flexibly from where you are most productive, with regular meetings in the Hamburg area.
Best of both worlds: Enjoy the stability and exciting projects of a large client combined with the agile culture and flat hierarchies of a small, experienced IT service provider.
Top equipment: You will receive a complete, high-quality home office setup.
Learning culture: Benefit from a wide range of learning and training opportunities to stay current with technology.
Security & benefits: 30 days of vacation per year and a company pension plan (bAV) are standard.

IT Infrastructure Engineer

Key skills