CareerPlan

IT-System-Engineer Microsoft 365 & Infrastructure (m/w/d)

KölnFull-time2026-08-06 → 2026-11-10

Core

Designing and maintaining complex IT infrastructures for customers, focusing on Microsoft 365, Windows domains, and hybrid environments.

Role type

Senior IT System Engineer (Microsoft 365 & Infrastructure)

Builds

Scalable, secure, and long-term IT solutions for clients

Domain

IT Infrastructure, Microsoft Ecosystem, Cloud & On-Premises

Required skills

Microsoft 365 administration, Windows Server administration, Active Directory management, Hyper-V virtualization, TCP/IP, Routing, Switching, DNS, Linux (preferred), Security solutions implementation, Customer support

Preferred skills

Migrations project experience, Self-learning ability, Analytical thinking, Flexibility

Technologies

Microsoft 365, Windows Server, Active Directory, Hyper-V, Linux, TCP/IP, DNS

Responsibilities

Planning, provisioning, configuration, and maintenance of Windows domains and Active Directory; Managing Microsoft 365 and hybrid system environments; Implementing security solutions (antivirus, MDM, EMS); Providing IT support via phone, remote, and on-site; Troubleshooting and resolving infrastructure issues

Seniority

Mid-Senior, hands-on IC