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About Us

At Secusmart, we develop secure mobile communication solutions that protect sensitive government and enterprise communications. Based in Düsseldorf and part of BlackBerry since 2014, we are trusted by federal agencies across Germany and beyond. Our technology meets the strictest security requirements, including German VS-NfD classification for handling classified information.

The Role

We are looking for an experienced IT professional who combines strong infrastructure skills with a passion for security. You will work as part of a small, highly skilled IT team, taking ownership of security operations while contributing to day-to-day infrastructure management.

This is a hands-on role. You will not just define policies: you will implement them.

You will monitor our SIEM, patch our systems, harden our infrastructure, and respond to security incidents. At the same time, you will be a trusted generalist who can step in across our Windows, virtualization, and backup environments when needed.

What You’ll Do

Security Operations (Primary Focus)

• Operate and continuously improve our SIEM platform: Alert triage, tuning, and incident response
• Own vulnerability management: Scanning, assessment, prioritization, and remediation tracking
• Drive patch management processes from planning through deployment and validation
• Handle security incidents: investigation, containment, documentation, and lessons learned
• Support ISMS and BSI IT-Grundschutz compliance activities

Infrastructure Engineering

• Administer and maintain Windows Server, Active Directory, and Exchange environments
• Support virtualization infrastructure (VMware) and enterprise storage systems
• Contribute to backup operations (Veeam) and disaster recovery planning
• Provide 2nd and 3rd level support as part of a collaborative team
• Create and maintain technical documentation

What We’re Looking For

Required

• Self-starter who thrives working independently: You identify problems, propose solutions, and drive them to completion without needing constant direction
• Strong documentation discipline: You write things down, create runbooks, and ensure knowledge isn’t locked in your head
• 5+ years of experience in IT infrastructure or systems administration
• Strong knowledge of Windows Server, Active Directory, Group Policies, WSUS, and Exchange
• Hands-on experience with security operations: SIEM, vulnerability scanning, endpoint protection, or similar
• Experience with virtualization platforms (VMware vSphere preferred)
• Fluent German (written and spoken): required for compliance documentation and communication

Nice to Have

• Experience with Wazuh or similar SIEM platforms
• Knowledge of BSI IT-Grundschutz or ISO 27001 frameworks
• Veeam Backup & Replication experience
• PowerShell scripting for automation
• Relevant certifications (BSI IT-Grundschutz Praktiker, VMCE, Microsoft, or similar)
• Practical use of AI tools to automate tasks, accelerate workflows, and support learning

What We Offer

• A meaningful role in an organization that takes security seriously: not as an afterthought
• Real ownership and the ability to shape how we do security
• A small, skilled team where your work has visible impact

#LI-NR1

Scheduled Weekly Hours: