CrowdStrike Experts in Germany

I implemented a Zero-Trust architecture for robust, military-grade maritime container mini data centers based on VMware & Tanzu to support containerized GIS workloads for ground forces. The main focus was on securing communications, workload protection, and data access in contested electronic battle environments affected by jamming, interception, signal manipulation, and constantly changing operational conditions. I designed and architected use cases so that every element of workload, identity, and system could continue to operate independently and securely even in degraded or disrupted scenarios. In parallel, I defined the enterprise and solution security architecture with LeanIX, Bizzdesign, and HOPEX as enterprise architecture, repository, and governance platforms to maintain architecture inventory, relationships, traceability, target pictures, and security governance in complex environments. For the architectural designs, I used Sparx Enterprise Architect to describe formal architecture views, interfaces, trust boundaries, and system architecture in both IT and OT environments. IriusRisk was used for threat modeling of the solution to identify architecture-driven risks, derive security requirements, and detect countermeasures and design gaps directly from the solution models. Risk and compliance management was supported with Archer. Architecture decisions, control gaps, and operational risks were translated into controlled governance and auditable compliance measures. For documentation, collaboration, and visual design, I used Confluence to maintain Architecture Decision Records, Security Blueprints, and workflows. I used Lucidchart and draw.io to create design artifacts tailored to stakeholders. I also defined OT security concepts with support from electrical and mechanical engineers in the areas of oil, vehicle onboard systems, rail, power plants, pharma, gas turbines, and nuclear technology. I created the end-to-end OT security strategy, starting with global policy, developed into standards and procedures, and finally aligned with Bell-LaPadula, Purdue Model, SABSA, TOGAF ADM, CENELEC 50701, IEC 62443, and NIST standards. In addition, I worked with engineering team leads to identify critical KBP assets and place them under protective measures that segmented SCADA, PLC, and HMI assets. I drove collaboration between Security, IT, and OT teams to create standardized workflows and use cases for the OT security solution catalog, while integrating Defense-in-Depth and Zero-Trust principles into operational environments. A key part of my work was integrating multidisciplinary engineering, security, and operations stakeholders into a unified security blueprinting strategy and ensuring that architecture, threat modeling, governance, and documentation were technically strong and operationally practical.

• Completed 25+ hands-on labs focusing on digital forensics, incident response, and advanced threat hunting techniques.
• Earned top-tier badges in malware analysis, enterprise log analysis, and threat intelligence gathering.
• Developed specialised skills in forensic report writing and evidence collection methodologies to support incident investigations.

• Operational management of a hybrid Palo Alto Networks firewall infrastructure within an IoT environment
• Network zoning using VLANs
• Analysis, optimization, and hardening of the rule set
• Deployment of additional firewalls into the infrastructure
• IP address management
• Security operations of the IoT NDR solution from Nozomi Networks
• Security operations of the honeypot infrastructure from secXtreme
• Vendor management to ensure and implement required network measures
• Communication with clients and vendors in an international environment
• Technologies used: Palo Alto Networks, Panorama, Palo Alto AWS cloud firewall, Nozomi Networks, Honeybox

• Baseline compliance verification against MAS audit findings
• Building technical architecture concept for 30 technologies to build hardening standard artifacts
• Identifying and building automation possibilities for given technologies based on CIS
• Building the standard baseline configuration based on internal security standard
• Responsible for building Cloud Native Application Protection Platform (CNAPP) architecture artifacts based on Azure cloud platform
• Responsible for RFQ and RFP for different CNAPP solutions (Qualys Total Cloud, CrowdStrike, Azure Security Center)
• Supporting compliance verification and validation via automated scripts for a sample population of IT devices and instances
• Responsible for complete vulnerability management lifecycle using Nexpose, remediation, reporting and integration of results with Splunk, HPSM and Tableau
• Audit support for MAS

• Created as-is network documentation for a Bechtle customer
• Analyzed existing configurations and adjusted them
• Advised on Fortinet and Check Point products
• Troubleshot complex routing, switching and application issues
• Tools: MS Azure, FortiManager, Cisco Nexus & Catalyst, Cisco WLAN Controller, Citrix Netscaler SD-WAN, MS Visio, Checkpoint VSX, Wireshark

• Coordination and monitoring of required tasks and resources
• Coordination and ensuring the flow of information between involved departments
• Windows 10/11
• Time management and project control
• Integration of S/4HANA solutions in collaboration with business units
• Microsoft Project
• Confluence
• Jira
• Microsoft Office
• Microsoft Planner
• Responsible expert for client management environment services and patch management
• Coordination of interfaces and integration with existing systems
• Enable and enforce multi-factor authentication (MFA)
• Ensuring data migration and quality during the S/4HANA implementation
• Creation of a project structure plan
• Optimization of the design and implementation of service and client management processes
• Azure AD
• Project management & risk management
• Regular updates and drafting of decision documents for decision-makers
• Set up of an additional Linux-based infrastructure for administrative purposes
• Advising program management on transformation and migration projects
• PowerShell scripting
• Enhancement, maintenance and troubleshooting of the existing ERP application
• Synchronization with on-premises directories (Azure AD Connect)
• Conducting concept development and planning
• Procurement, integration, and deployment of MacBooks
• Autopilot
• Integration of systems into a client management system (Intune), Microsoft Defender, and Azure AD
• Implementation of single sign-on for mobile devices & PCs
• Migration from Active Directory to MS Intune
• Implementation and integration of SAP S/4HANA solutions
• Software packaging (MSI)
• Mobile device management with MS Intune and Mobile Iron
• Management of servers and services using Ansible
• MIM (Microsoft Identity Manager)
• Identity and permission management
• Access management

• Operational management of the company: building teams and infrastructure, developing products, analysis and implementation of IT security measures

• Project assignments in the IT security environment focusing on establishing blue teaming activities (defensive processes and technologies) to defend against cyber attacks

• Conducting red teaming processes, including penetration tests and security analyses for companies

• Consulting on setting up Security Operation Centers and implementing SIEM systems, and building Computer Incident Response Teams (CSIRT)

• Auditor for ISO 9001 and ISO 27001, § 8a, ISO 27019, § 11 1a EnWG, TISAX

• Advising companies in critical infrastructures on information security and compliance with the IT Security Act

• Building SIEM/SOC processes and SOC analyst work (Splunk, ELK-Stack)

• Integrating data into monitoring tools (Prometheus, Grafana)

• Consulting on BSI IT baseline protection, ISO 9001, ISO 27001, BCM, ITIL and risk management

• Security assessments and penetration testing of IT and network architectures

• Analyze and structure specific IT security requirements
• Build a structured requirements backlog as a basis for the sub-group’s IT security initiatives (including separation from group-wide programs)
• Conduct a systematic delta comparison with group-wide IT security requirements to identify open needs and dependencies
• Develop a multi-level IT security roadmap including implementation and project planning, aligned with internal and external stakeholders
• Provide professional project management at the program level, including status analysis, risk management, action tracking, and goal control
• Coordinate internal departments and external service providers, including communication planning and managing regular status meetings