What can you expect? You will install and configure Windows servers including roles and functions You will manage domain controllers with active directory user management and configure L2 stack switches and VLANs You will plan and implement network segmentation and be responsible for Site-to-site VPN tunnel (IPSEC, SSL) and VPN dial-in for clients You will handle user and access control Entra ID, and configure and administer in an Exchange Hybrid environment You will ensure and further develop the internal IT security, install and configure ESXi hypervisor, update and patch management of ESXi and vCenter as well as configure networks and storage within ESXi You will install and configure Linux servers (network, access control), configure and further develop our infrastructure using various cloud solutions, and monitor backup jobs What should you bring along? You have several years of experience with Windows Clients/Server (DHCP, DNS, WSUS, and CA), network infrastructure (LAN, WLAN, WAN, etc.), firewall and Mailgateway (Sophos, Fortigate, Fortimail, Watchguard, Lancom), Microsoft 365 (Azure Hybrid, Exchange, Intune, Defender), and virtualization (VMware, NAS/SAN) Ideally, you have experience with Linux and backup (VEEAM) You are characterized by a solution and service-oriented way of working and analytical skills You have very good written and spoken English skills What do we offer? We focus on team spirit, mutual trust, independent action, and having fun at work We support the compatibility of family and career through a great deal of flexibility in the organization of working hours, mobile working, and a kindergarten allowance In addition to an ergonomic and modern working environment, we offer you benefits such as fitness cycling with a job bike, a wide range of sports activities with Hansefit, a subsidized job ticket, and much more Our prime location and good transport links make it easy for you to get to work We are a dynamic, open-minded company that looks to the future and welcomes new ideas that you bring with you