Network Attached Storage Experts in Germany

• Overall coordination of service providers for all infrastructure topics at a production site being set up in Baden-Württemberg
• Design and finding solutions for internet connectivity, building office communication networks, setting up WLAN in production and administration buildings, IP address management, password policies, time tracking, access control systems, backup strategies, emergency power planning, operating concepts, cost planning, event management, workplace setup including laptop/mobile phones/telephony, remote support, print servers
• Selecting suitable external service providers and planning to meet needs for spare parts, repairs, on-site service, network and workplace support including on-site system replacement by providers
• Choosing suitable external service providers for facility management and building technology (fiber optic connections, data center infrastructure, cable ducts etc.)
• Coordination with clients and service providers
• Escalation management, schedule control
• On-site presence for service meetings and managing service providers

• Implementation of specified DevOps solutions to automate infrastructure (Terraform, Bicep, CloudFormation, Ansible) on-premises datacenter (Ovirt, Proxmox, Ceph Cluster, MinIO) and private cloud.
• Administration, configuration and implementation of CI/CD DevOps pipelines (GitLab, GitFlow) to support development process (Artifactory, Prometheus, Istio, service mesh, Helm Chart, OpenShift (Red Hat Enterprise) / Kubernetes cluster), Red Hat Satellite.
• Administration, setup, monitoring and patching of Linux infrastructure based on Red Hat Enterprise for Dev, Test and QA.
• Use of Scrum and Kanban methods.
• Administration, configuration and implementation of security standards for deploying on Dev, Test, QA and Prod stages of the new ePA applications.
• Development of new plugins and add-ons needed on current infrastructure.
• Database support.
• Data analytics support (Python, Spark, Pandas, Power BI, Splunk Enterprise).
• Implementation of best practices for DevSecOps and BizDevOps using GitOps (ArgoCD), Streamlit framework, Semaphore Ansible UI.
• Configuration and testing of iperf, uperf, sysbench using benchmark-operator for external source data and IoT/MDM devices, creating reports via ELK / OpenSearch.
• Building a new Databricks platform to collect and analyze big data from different sources and IoT devices into Hadoop framework (Python, Pandas, PySpark, Power BI, Apache Airflow).
• Building backend data aggregation and processing to automate configuration deployment between different OpenShift clusters and big data framework (Python, Pandas, PySpark, Apache Spark, PostgreSQL, Django 2, Ansible Automation, Jira JSM).
• Building a new ML pipeline platform using Kubeflow, TensorFlow, KServe.
• Data extraction, transformation and loading from different data sources including structured and unstructured data to analytic DWH / big data cluster using Python, Pandas, Polars, Power BI, Django backend and PostgreSQL.
• Setup of new DevOps Test and QA HashiCorp Vault cluster for PKI and IAM.
• Configuration and testing of automated patching based on CVSS score, SIEM-integrated CVEs.
• Use of Nexpose and InsightVM to scan vulnerability events in network, host, container and application.
• Design and implementation of secure and scalable AWS architectures including VPC, EC2, S3, RDS and Route53 and similar setups on Azure and GCP.
• Automated system provisioning and deployment using CloudFormation templates.
• Configuration of IAM roles, policies and permissions to ensure secure access control.
• Patch management, backup automation and disaster recovery setup on AWS infrastructure.
• Monitoring and optimization of system performance using AWS CloudWatch and AWS Trusted Advisor.
• Support of VMware services (vSphere, Aria, Horizon) and the virtual desktop environment.
• Development and maintenance of CI/CD pipelines using Jenkins, GitLab CI/CD and AWS CodePipeline with interface to Nutanix.
• Configuration of AWS CloudWatch to monitor application performance and system events.
• Planning and execution of migration of on-premises applications to AWS cloud platforms.
• Deployment of containerized applications using Docker and Kubernetes in AWS environments.
• Deployment of internal software packages between availability zones using AWS CodeDeploy.
• Building and deploying ML models using Scikit-learn, XGBoost and Spark MLlib including hyperparameter tuning, model evaluation and production deployment.

Self-employed consulting, implementation, and support of IT infrastructures with a focus on IT security, network and server administration, virtualization, backup & recovery, IT documentation, asset management, and business continuity management.

• IT security consulting and implementation of technical protective measures
• Windows server and client support, patch management, user support
• M365 – Entra ID – MS Azure administration
• Planning, installation, and operation of LAN, WAN, WLAN, and VLAN infrastructures, Cisco, HP, Netgear, Sophos, Securepoint
• Support of virtual systems based on Hyper-V, VMware, and Proxmox
• Backup and recovery concepts including test recovery, documentation, and handover
• Introduction and maintenance of IT documentation, asset management, and inventory tracking
• Implementation of measures related to IT baseline protection, emergency manuals, and BCM
• On-/offboarding concepts with a focus on permissions, devices, data access, and handover processes

Security awareness and practical sensitization of users and IT staff

• Requirement engineering for Ombudsstelle and creation of technical user stories for EPA V3
• Handling of objections and revocations via mail and letter with high transaction mail volume
• Coordination with other teams on interfaces
• Design of a highly available, high-throughput solution on OpenShift with Java backend microservices
• Implementation and extension of microservices
• Infrastructure setup for deployment on OpenShift/Kubernetes including Jenkins pipelines
• Integration with BitIAM, TI-M Fachdienst, Consent Keeper and FDV
• Capture of requirements from DevOps operations and business units
• Continuous integration and Scrum practices
• Use cases: Kassenfusion, Opt-Out, Last Test, Widerspruchsmanagement
• Integration test automation and feature extensions including Spring Boot 3 updates

• Developed point cloud classification and segmentation models for dental applications.
• Designed domain adaptation techniques that improved F1 score by 0.1 on a new clinical domain.
• Worked with 3D geometric data and production-scale ML pipelines.

• Led a large-scale transformation project to replace a complex multi-provider/multi-technology infrastructure with a unified single-provider platform
• Overall responsibility for planning, controlling, and implementing the migration of all LAN, WAN, and WiFi components at national and international locations under high availability and security requirements (critical infrastructure)
• Developed and implemented the migration strategy, including a detailed rollout roadmap and risk management plan
• Managed interdisciplinary project teams and coordinated service providers and internal stakeholders
• Ensured compliance with schedule, budget, and quality targets
• Introduced standardized operational processes and handed over to regular operations
• Close reporting to the steering committee and C-level

• Operation, administration, and further development of an Oracle 21c database environment on Oracle Linux, including performance analysis, troubleshooting, and PL/SQL
• Setup and operation of a Kubernetes environment on AWS (EKS)

Skills: Oracle 21c DBA, Oracle Linux, Kubernetes, AWS

• Development and implementation of test concepts for complex, multi-layered systems
• Creation of regular management reports and presentations for stakeholders and clients
• Technical and disciplinary leadership of international test teams (coordination, coaching, resource planning)
• Responsibility for quality assurance across multiple test levels (unit, integration, system, and acceptance tests)
• Design of test cases and test plans in Azure DevOps; ensuring traceability and coverage
• Use of BDD approaches (Gherkin/Cucumber) to prepare test automation
• Building a test automation architecture with Playwright and integrating new tests into CI/CD pipelines
• Performing API tests (REST) and tests for mobile/PWA applications
• Setup and maintenance of test environments across multiple stages (integration, QA, UAT, pre-production)
• Test data management (synthetic and production-like data), ensuring consistency and reproducibility
• Collaboration with DevOps teams for containerization (Docker/OpenShift) and CI/CD integration
• Working under SAFe & Scrum, closely coordinating with product owners and DevOps teams
• Active participation in PI plannings, sprint reviews, and retrospectives
• Promoting an agile QA culture through coaching and knowledge sharing
• Introducing scalable test automation with Playwright → significant reduction of manual testing efforts
• Increasing test transparency through clean defect and reporting management in Azure DevOps
• Improved release quality through an end-to-end QA strategy and automated regression tests
• Strategic leadership of Trikolon Consulting GmbH and responsibility for finance, personnel, and business development

• Recognition of national notified bodies
• Preparation of cybersecurity competency reports
• EU Radio Equipment Directive

• Complete redesign of IT infrastructure including setup of a server room according to BSI standards, new network concept and planning.
• Development of security concepts and IT security consulting for the DHCP/DNS election sector.
• Support of project management for the customer in the VOIS | MESO area.
• Technical support for setting up the IT infrastructure in new offices, including firewall configuration, router setup and network planning.
• Setup and configuration of the service management and ticket system JIRA.
• Implementation and administration of the Azure (Entra) environment for all employees.
• Setup and administration of the Confluence environment.
• Planning, setup, configuration and administration of the entire Atlassian Collaboration Suite.
• Development of BCM strategy options.
• Development and implementation of measures and creation of BCM plans, as well as evaluation of existing BCM.

• Datacenter setup, updates, connectivity and Disaster recovery setup.

• Technologies used: VMware ESXi 8, DevOps, Office 365, VM, Hyper-V, Workplace, Power BI.

• The client is undergoing a comprehensive transformation. All SAP ECC landscapes worldwide are being migrated to SAP S/4HANA, with the goal of introducing a global standard template.

• The program also includes the migration and modernization initiative "RISE with SAP", which may involve migrating selected country installations to the SAP Private Cloud.

• On the stakeholder side, the program's reporting line extends up to the company's board and the implementation partner's board.

• Fiserv Germany's ERP landscape currently includes several non-standard SAP tools and applications that extend the ECC environment's functionality and often integrate with downstream systems. As part of the move to SAP S/4HANA, it is essential to assess the core functionality, integration points, and future viability of these applications to determine their alignment with the target architecture.

• The focus of the role is to provide expert advice and assessment to define the scope, strategy, and roadmap for migrating Fiserv Germany's SAP ECC system to SAP S/4HANA.

• SAP's recommended best practices are followed, and a structured approach is used to ensure a smooth transition with minimal disruption while maximizing business value.

• This assessment forms the basis for a successful SAP S/4HANA transformation, ensuring alignment with industry best practices, regulatory compliance, and future scalability.

• Migration strategy definition – evaluating available transition approaches based on business objectives, technical feasibility, and SAP best practices.

• Technical readiness assessment – conducting a system analysis to assess compatibility, custom code impact, data volume management, integration points, and infrastructure readiness for SAP S/4HANA.

• Business process impact analysis – reviewing the latest business process documentation to define the scope and effort needed to implement required functions in SAP S/4HANA and identify process optimization opportunities.

• Roadmap for non-SAP systems and applications – evaluating third-party and legacy applications for SAP S/4HANA integration and recommending consolidation, migration, or replacement strategies.

• Deployment & implementation planning – defining a phased rollout approach, including project timelines, risk mitigation strategies, and key milestones aligned with business priorities.

• The transformation is carried out in phases: the discovery phase leads to the explore phase, which then leads to the design phase and finally to the implementation phase.

• Program management

• Change management

• Requirements management

• Transition management

• Stakeholder management

• Risk management

• Comprehensive coordination

• Led a small team of Storage/Backup consultants responsible for EMEA region data center transformation across 200 DCs
• Developed and defended HLD and LLD designs for SAN (Brocade), block storage (HPE Primera/Alletra), NAS (EMC Unity), object storage (Iternity with iCAS FS), and backup (Commvault)
• Performed build and configuration of ~25 data centers, coordinating with network, compute, and security teams
• Developed new processes and standards for infrastructure builds and finalized hardware purchases and BOM preparation
• Created and executed testing approach including DR tests, and handed over builds to operation and migration teams
• Trained other storage consultants to ensure SLA compliance
• Technologies: Brocades, HPE/IBM/EMC/NetApp/CEPH, vSAN, NSX, TSM, Veeam, Commvault, tape libraries, drives & VTLs

• Large-scale B2C legal services platform operating across Europe in air passenger rights and in Germany across labor, mobility, and rental law.
• Owned the end-to-end onboarding and lifecycle foundations of a high-traffic customer acquisition funnel across 8 European markets, supporting ~10,000 new users per month and backed by €100k/month in paid acquisition spend.
• Led the architectural migration of the core intake and decision logic from fragmented legacy flows into a scalable workflow engine, increasing reliability, improving operational efficiency, and enabling faster iteration on funnel performance and user experience.
• Partnered closely with engineering, operations, and commercial stakeholders to optimize activation, manage complex edge cases, and ensure the platform could scale sustainably across markets without compromising performance or consistency.
• Introduced foundational product analytics and performance monitoring to increase visibility into activation, drop-offs, and lifecycle behavior, enabling data-driven prioritization and experimentation.