Principal Software Engineer (f/m/d) is open at Focused in Darmstadt, DE (hybrid). The posting gives no salary; similar roles in the United States advertise a median of $229K. Posted on Sep 21, 2026, and still on Focused’s careers page when we last checked, on Nov 15, 2026.
About the role
Define and maintain the end-to-end Core Software architecture for the fusion power plant, including device interfaces, calibration, data handling, data storage, and HMI. - Design and implement critical parts of the Core Software system using languages such as C++ and Python. - Define clear interfaces between software, control hardware, diagnostics, plant equipment, data systems, and operator tools. - Design reliable…
The opening lines of the posting. The rest is on Focused’s careers page.
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