UML Expert in Essen

• QA Lead for end-to-end quality assurance of the Sparkasse & Sparkasse Business banking apps (iOS/Android); design and implementation of the Test Strategy including functional testing, regression testing, and UAT for eID, Push Notifications, and white-label components
• Creation and maintenance of test concepts and test plans in TestRail; structured Defect Management and error analysis; stakeholder management and risk management for the early identification of critical quality risks
• Accessibility Testing according to WCAG 2.1 (iOS/Android); coordination of AI-supported test automation and optimization of test processes to shorten release cycles
• Release Management: planning, management, and coordination of all test activities; status reporting to management and stakeholders; quality assessment of releases and release recommendations in an Agile/Scrum environment
• Challenge: Highly complex build and release process across several Sparkasse institutions; close coordination with the DevOps team to stabilize the CI/CD pipeline and ensure reproducible test builds before every release.

Tools: Jira, Confluence, TestRail, Android Studio, Xcode, Firebase, Jenkins, GA4

• Success: Successful launch of the eID authentication process - quality assurance ensured for 50+ Sparkasse institutions

• AI-Enabled Analytics & Reporting: Lead a 2-person BI team, applying predictive analytics and automation to translate complex business requirements into forward-looking insights, recommendations, and financial reports.
• Advanced Data Visualization: Design and maintain 25+ high-impact Power BI/Tableau dashboards tracking company-wide KPIs and trends, structured to support predictive and automated reporting.
• Web Analytics & Insights: Own GA4 tracking and analysis, driving a 15% increase in conversion insight through deeper customer journey analysis.
• Data Pipeline Optimization: Partner with data engineers to redesign and automate data pipeline workflows, cutting manual reporting time by 20% while safeguarding data accuracy and system uptime.

• 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

• Led the 12-week training program to become an AI and automation specialist
• Created training materials & video courses on "AI Fundamentals", "Working with ChatGPT", "Prompt Engineering", "AI Agents with N8N", "Automations with Make.com" & AI-generated marketing content (images, videos, blog posts & social media posts)
• Conducted workshops on the above topics
• Tools: Loom, N8N, Make.com, ChatGPT, Midjourney, Gamma.app, Canva, Kling AI, Magnific AI
• Result: Participants learn the technical and business know-how to successfully build a business as AI and automation specialists

• Optimization of the transmission media of the data links in the Ruhr area
• Configuration/expansion of switches and routers for an autonomous system AS
• Improve the network protocols used Layer 2/3 (OSI model), RSTP, broadcast, etc.
• Laying cables, crimping, antennas, routers, switches
• Maintenance, expansion, selection and prioritization of troubleshooting measures for network monitoring (PRTG, The Dude)
• Organization and new connection of another BGP peering, data center, NGN fiber optic
• VPN IPSec site connections for 6 sites with PFSense, Fritzbox
• Configuration of WLAN devices (Mikrotik, UBNT

Label: TCP/IP, VLAN, BGP, OSPF, MPLS, VPLS, routing protocols, WLAN, EoIP, PPPoE, routing, SNMP, DHCP, DNS, NAT, native IP, VLAN, Ethernet, VoIP., switches and routers from: Nortel, Cisco, MikroTik, UBNT., network management systems: The Dude, PRTG, UISP

• Gathering, analyzing, specifying, and prioritizing requirements for the 'Archive and Delete' module of the Chambers of Industry and Commerce in a Scrum team
• Capturing and specifying screen/form designs, functionality, and data types in Confluence, as well as creating user stories in Jira
• Preparing PowerPoint presentations for the 'Archive and Delete' module
• Coordinating and supporting the Chambers of Industry and Commerce in the implementation of the module
• Writing SQL scripts for an Oracle database
• Technologies used: Scrum, Confluence, Jira, MS Office, Postman, JavaScript, REST API, JSON, DBVisualizer, SQL

• Main contact for the customer for all matters relating to the delivery of services in the sub-area
• Responsible for service delivery in the sub-area and coordinating the delivery results to be achieved (project planning)
• Validation of the sprint planning of the associated teams against the project plan
• First escalation point when estimates cannot be agreed upon
• Resource management for 17 project employees
• Continuous process improvement
• Risk management of any kind that could endanger delivery
• Reporting of results internally and to the customer, such as project execution and milestone achievement
• Responsible for the budget in the sub-area (revenue, profit)
• Identifying and implementing financial optimization needs
• Ensuring that the Jira elements in the sub-area are maintained according to financial and agile guidelines
• Set up an Informatica Core team
• Project management for various migration projects

• Design of requirement verification based on the INVEST principle
• Implementation of the prediction model with scikit-learn and BERT
• Implementation of the web client with ReactJS and FastAPI
• Adaptation of the T5 model to improve user story generation according to the INVEST framework
• Certification of NLP and scikit-learn
• Technologies: Python, NLP, Scikit-Learn, BERT, T5, ReactJS, FastAPI, Cursor Visual Paradigm, Visual Studio, Draw.io, NSIS, vite, Electron

• Customer service and point-of-sale (cash register) operations
• Inventory management and stock organization
• Strengthened German language skills through daily customer interaction
• Worked collaboratively in a fast-paced, team-oriented environment

• Creating the functional specification for a dashboard solution for E2E management in the 5G deployment team in an Open RAN architecture
• Developing dashboards and reports with Power BI Desktop (data connection using Power Query, KPI calculations with DAX, publishing to Power BI Service)
• Developing solutions with Power Apps
• Integrating Power BI reports into Dynamics 365 Business Central