As a System Test Engineer (m/f/d), you will play a key role in ensuring the quality, reliability, and operational performance of our unmanned systems (aircraft, vehicle).You will develop a deep understanding of our products, their system & software architecture, hardware components, interfaces, and operational use cases. Based on system and software requirements, you will define effective verification strategies, specify test cases, and execute tests across different test environments (simulation and hardware-in-the-loop setups).This position combines analytical system thinking, hands-on testing, and test automation. You will work closely with software, systems, hardware, simulation, and flight-test teams to identify risks, uncover defects, and provide objective evidence that our products meet their intended requirements. By continuously improving our verification methods, test coverage, and automation, you will contribute directly to the safety, reliability, and successful release of our next-generation unmanned aircraft systems.What is your Day to Day Mission:Develop a test strategy to validate our entire software stack for unmanned systems (vertical take-off and landing aircraft (VTOL), unmanned ground vehicle).Understand the architecture, functionality, interfaces, and operational behavior of our unmanned systems.Evaluate and develop AI-powered testing solutions, including AI agent-based systems, to automate test implementation, improve test generation, and increase the efficiency of our verification processes.Create new end-to-end integration tests.Review, challenge, and optimize existing test cases.Proactively expand test coverage in a structured way to identify and push system limits.Develop an automated test framework that enables developers to continuously extend the test suite.Execute functional, integration, regression, robustness, and end-to-end system tests in SIL, HIL, and real-system environments.Work closely with software developers, systems engi