System Engineer – Core Infrastructure

Infrastructure Operations (BAU)

• Operate and maintain core IT infrastructure services ensuring availability, stability, and performance
• Independently handle day-to-day operational tasks within defined standards and procedures
• Analyze and resolve infrastructure incidents, contributing to root cause analysis
• Execute approved changes in line with formal change management processes
• Participate in on-call rotation (if applicable)
• Maintain accurate technical and operational documentation

Active Directory & Identity Management

• Administration of Microsoft Active Directory (on‑premises): users, groups, computers, and Organizational Units.
• Implementation, maintenance, and troubleshooting of Group Policy Objects
• Resolve authentication, replication, and directory service issues
• Support identity lifecycle management (joiners, movers, leavers)
• Exposure to Microsoft Entra ID (Azure AD) and hybrid identity environments is appreciated

Virtualization & Server Management

• Provisioning, operation, and lifecycle management of virtual machines
• Administration of Windows Server environments including configuration and hardening
• Monitor server performance, resource utilization, and capacity
• Experience with Hyper-V virtualization is highly appreciated

DNS & Core Infrastructure Services

• Administration and troubleshooting of DNS services
• Support core Microsoft infrastructure services such as certificates coming from internal AD CS
• Ensure stable integration between directory services, DNS, and network components

Email & Messaging Platforms

• Operation and support of enterprise email platforms (on‑premises Exchange and/or Exchange Online)
• Troubleshoot mail flow, access issues, and mailbox-related incidents
• Support controlled operational changes while maintaining availability and compliance

Security, Patching & Regulatory Compliance

• Execute Windows Server patching activities in defined maintenance windows
• Apply system hardening measures and baseline security configurations
• Support vulnerability remediation in collaboration with security teams
• Ensure compliance with BaFin-relevant requirements such as auditability and access control
• Assist with internal and external audits by providing technical evidence

Required Skills & Experience

• Solid hands-on experience with Active Directory
• Practical experience managing Group Policies
• Good knowledge of Windows Server administration
• Experience managing virtual machines
• Strong understanding of DNS and core Microsoft infrastructure services
• Strong PowerShell scripting for administration and automation

Nice to Have

• Experience with Hyper-V virtualization
• Exposure to Microsoft Entra ID (Azure AD) and hybrid identity models
• Experience with enterprise email platforms (Exchange Online or hybrid Exchange)
• Experience with infrastructure monitoring solutions such as SCOM, PRTG, or comparable platforms
• Experience working in financial services or regulated environments

Experience & Education

• 3--5 years of professional experience in a System Engineer or Infrastructure Engineer role
• Experience supporting enterprise IT environments
• Degree in Information Technology, Computer Science, or equivalent professional experience

Languages

• German -- professional working proficiency (required)
• English -- professional working proficiency (required)

Personal Competencies

• Structured and reliable working style
• Strong sense of responsibility and attention to detail
• Ability to work independently within defined frameworks
• Clear communication and documentation skills
• Team-oriented mindset with strong service orientation
• Ability to work effectively in a hybrid working model, combining remote work with regular on‑site presence at the Frankfurt office as required

What we offer:

• An exciting working environment and challenging tasks
• Extensive insight into the European fund industry
• Friendly, international and goal-oriented working environment
• High degree of independent work
• Interesting discounts
• Free Deutschland ticket
• Attractive home office arrangements and working time flexibility