ISTQB Certified Tester Foundation Level (CTFL)

• Developing a model-based AI where natural language is interpreted as formal relations.
• Natural language terms are not considered rigid but fluid and can be negotiated in a context so meaning resolves by iteratively specifying.
• Develops all kinds of model solutions.
• Backed by natural language and data annotation.
• Requirements to code and other solutions.

Temporary employment

• System black-box integration tests (BBIT, IVVQ): Execution of regression, release, acceptance, and compliance tests for safety-critical brake control units in the rail industry
• Software test application & integration: Runtime configuration of software components and libraries, validation of interfaces, configuration dependencies, and component interactions
• Test automation (FEAT framework): Co-development and further development of an automated test framework for test execution, reporting, and result analysis
• Functional safety (SiL4, FuSi): Ensuring compliance with safety requirements, traceability and coverage, as well as standards compliance according to EN50126/28/29
• Test automation for communication components: Configuration and validation of fieldbus (CAN) and Ethernet-based TCMS data communication interfaces (TRDP and CIP)
• Requirements analysis & shift-left (PTC Windchill ALM): Analysis of software and system artifacts to identify gaps, ambiguities, and redundancies early in the SDLC
• Test design & test case development: Derivation of test conditions, coverage strategies, and implementation of data-driven test cases (DDT), including reusable test data fixtures
• CI/CD & automation (Python, PowerShell, Jenkins, SVN): Automation of build, test, and HIL deployment processes as well as integration into CI/CD pipelines
• Test data & configuration management (XML): Maintenance and adaptation of XML test vectors and system configurations with automated integration into test environments
• Non-functional testing: Execution of performance and load tests to assess stability and system behavior
• Agile development & defect management (JIRA, Confluence): Participation in Scrum teams, test coordination, review of test artifacts, as well as defect tracking and root-cause analysis
• Error analysis & debugging (CANoe, CANalyzer): Analysis of errors and message flows across multiple system layers (application to bus)
• Model-based analysis (UML, Enterprise Architect): Specification of SUT/SOW and support for systematic test control
• Process & test documentation: Creation of integration and test documentation according to internal quality and certification requirements

Testing and verification of high-voltage systems

• Performed integration and system tests for control units in PHEV/EV vehicles using ECU-TEST (TraceTronic), Vector CANoe, CANalyzer, ETAS INCA, Tornado, E-Sys, and EDIABAS.
• Analyzed the interaction of high-voltage control units (including CCU, BMU, inverter, IPB, and IPF) and carried out software updates and flash processes to verify new software versions.
• Worked closely with software, system, and integration teams in an agile development environment to analyze issues and verify new software versions.

• Promoting a leadership culture
• Building structures for the agile teams
• Training the mindset for a product-centered way of working
• Establishing a Definition of Done
• Embedding team responsibility
• Using ConceptBoard as a tool for workshops, retrospectives, and training

• Customer interface and relationship management
• Requirements management and work coordination
• Technical and functional support focusing on automotive Ethernet

• Analysis of affected business processes taking numerous stakeholders into account
• Interface analysis, architecture and system design
• Communicating and coordinating various subprojects and interface partners
• Creating epics and user stories, maintaining the backlog, workshops and review presentations
• Support during implementation between business departments and development
• Test management including strategy and approach definition
• Test case definition, execution and approval
• Cross-team organization of integration and acceptance tests
• Support of test environments
• Technologies and tools: Java, Angular, Kubectl, REST, AWS SNS/SQS, Kafka, S4/HANA, Bruno

• Developed lateral-safety steering functions across two service packs, serving as Product Owner for SP-2021 and Function Developer for SP-2025
• Defined and maintained system requirements, coordinated validation and testing, and ensured seamless integration into series vehicles across 29 BMW, MINI, and Rolls-Royce models
• Drove a 62.5% reduction in Lane Keeping Assistant PPH (Problems Per Hundred) count from 9.6 (2023) to 3.6 (2025) in the US-IQS (Initial Quality Study) by enhancing function performance, contributing to a 7-position improvement in BMW’s overall brand ranking
• Managed collaboration with two main suppliers, resolving technical challenges and securing on-time milestones
• Delivered safety functions that supported multiple NCAP programs (EuroNCAP, ChinaNCAP, KoreaNCAP, JapanNCAP), with all models meeting or exceeding targets

• Conducted manual testing for claims creation, forwarding, repair cost calculation, parts selection and logging on the Gold.dat.de platform
• Automated key processes using ASKUI, including login, claim creation, calculations and parts selection
• Simulated user interactions (e.g., drag-and-drop) with ASKUI
• Integrated automated tests into CI/CD pipelines for early error detection
• Executed over 50 test scenarios and identified critical defects
• Reduced test time by 50% through automation
• Improved platform quality and user experience

• Set up GUI test framework for testers and developers to easily create GUI tests
• Implemented automated GUI tests with QF-Test for stock trading software and PDF file comparisons
• Created comparison runs between different versions

Used technologies: QF-Test, Java, Jython

An enterprise process mining and execution management platform that helps organizations analyze, visualize, and optimize their business processes using event data.

• Aligned 40+ engineering squads across 5 countries to deliver platform capabilities at scale, driving release infrastructure, change management, and rollout governance with zero post-launch defects for 1000+ enterprise customers
• Owned celonis studio platform roadmap prioritization, balancing technical investments, commercial priorities, and operational needs, driving 50%+ market share growth against legacy products
• Translated requirements into specifications, architectural decision records, and delivery plans in collaboration with engineering and UI/UX, resulting in a 20–30% increase in user engagement
• Drove the GA launch strategy, running pilot programs and customer discovery sessions to validate operational readiness and enterprise adoption

• Iterative test planning

• Providing test infrastructure

• Resource planning

• Test design

• Coordination of test teams

• Defect management

• Release management

• Project planning

• Cohort planning

• Test planning

• Test execution

• Trial test planning

• Rollout

• Business analysis

• Requirements engineering

• Change management

• E2E test coordination

• Corporate merger of TÜV Süd AutoPlus GmbH and TÜV Süd AutoPartner GmbH (ensuring the functionality of all production and billing processes within the scope of the merger)
• Creation of the test strategy to ensure the functional integrity of existing business processes after the merger
• Definition of test goals, test types and test phases (e.g., functional tests, integration tests, end-to-end tests, regression tests)
• Identification of critical business processes and derivation of appropriate test data and test cases
• Planning of the test environment and ensuring the availability of required test systems and test data
• Close collaboration with IT departments, business units and external service providers
• Execution of acceptance tests with the business units to ensure system stability before go-live.

• Led performance engineering strategy for MS Dynamics 365 retail transformation
• Coordinated 25+ engineers across multiple delivery streams
• Identified and resolved system bottlenecks, reducing critical performance issues by 40% pre-go-live
• Delivered executive performance dashboards enabling data-driven release decisions

• Overall responsibility for the quality of module KH
• Technical leadership and coordination of a module lead team
• Analysis of design models and alignment of technical requirements
• Preparation of risk analyses and presentations, and presenting them to decision-makers
• Test management, development, coordination and approval of current test cases and their prioritization for test events
• Test planning for different test phases
• Coordination of test phases with other departments to ensure relevant aspects of business operations
• Prioritization of handling existing bugs/tickets
• Tracking and validation of the quality of problem management
• Consistency checks, planning, prioritization and sorting of tickets
• Preparation and coordination of required test data
• Tracking ALM (QC) processes and their implementation at module level
• Collaboration with interface partners for bug fixes
• Ensuring effective communication within the team and with interface partners
• Coordination of tasks when processing tickets in ML KH
• Tracking, assignment and clarification of bug-fix scheduling
• Close collaboration and management of suppliers (at module level), the development department, and external partners
• Planning, development, execution and evaluation of functional tests
• Conducting functional end-to-end tests
• Weekly reports on current test and defect status to management committees
• Planning and executing performance and load tests to ensure that SOA applications meet expected performance and scalability requirements
• Developing test strategies and test plans for SOA-based applications
• Defining test objectives and criteria to ensure services meet requirements
• Integration of test automation