IQ-optimize Software GmbH | Germany | 47xxx Krefeld | Permanent position | Full time / Home office | Published since: 02.09.2026 on stepstone.de
Infrastructure Engineer Windows Server (m/f/d)
As a subsidiary of 1&1 AG, IQ-Optimize Software GmbH stands for innovative software and IT services. The focus is on IT security, business process optimization and media design. IQ-Optimize's core competencies include the development of tailor-made software applications and the provision of customized IT infrastructures. 1&1 AG counts with around 16 million. Customer contracts and 3,200 employees to the major telecommunications providers in Germany. The company offers its customers a comprehensive portfolio of broadband connections and mobile rates - complemented by attractive added value applications such as smart home solutions, IPTV, video on demand and online storage. .
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Your tasks • Your profile • What we offer
Our long-term team at the Krefeld site is looking for reinforcement. Look forward to interesting tasks in a dynamic working environment.
Planning, design, installation and further development of the Windows Server landscape based on current Windows Server versions as well as administration and maintenance of highly available systems. Performance, Capacity and Availability Management of Windows Servers Ensuring operation by means of a ticket system (error analysis, second/dhird level support) Adaptation and creation of automation processes as well as automatic system configuration (PowerShell scripting) Managing and securing Windows Firewall rules and network configurations at server level Administration and optimization of IIS web servers Support and development of Citrix VDI infrastructure and Citrix Netscaler Load Balancer IT security support for the implementation of hardening measures and security of the servers as well as on-going services
Successfully completed training as a specialist (w/m/d) or a comparable qualification Multiannual professional experience in operating Windows server environments Experience with Active Directory, GPOs, DNS, DHCP and Windows Failover Clustering Knowledge of PowerShell Scripting for the Automation of Administration Tasks Knowledge in managing and optimizing Hyper-V Experience with storage solutions such as Dell EMC or comparable technologies Funded knowledge of Windows firewall management and configuration Experience with Microsoft IIS web servers to provide and secure web applications Administration of Citrix VDI environments and Citrix Netscaler for Load Balancing and Application Delivery Very good knowledge of German and good English in word and writing
Attractive salary Strong community of team players Working time with flexible classification and the possibility of working up to 40% on mobile Numerous training options on and offline Discounts on 1&1 products and for various leisure offers Free drinks and fresh fruit Jobrad grant
Location
 | IQ-optimize Software GmbH | |
| 47805 Krefeld | ||
| Germany |
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