I work on automated software testing, with a focus on fuzzing, test oracles, program analysis, metamorphic and differential testing, test-data generation, and software security. The problems I find most interesting involve systems where valid inputs are complex and expected outputs cannot be specified directly.

At InputLab GmbH, my role as co-founder and CTO spans technology and product leadership. Our test data platform helps enterprise teams generate targeted synthetic test data from formal data models, enrich those models with reusable constraints representing business rules and test scenarios, and apply masking and anonymization workflows to existing data. Its design emphasizes collaboration and the operational needs of regulated environments.

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