Semidynamics' software team is extending support for our hardware into the tools and frameworks that enable clients to deploy AI applications. We're looking for software developers with strong C++ experience in complex, multi-layered projects, ideally with exposure to the interface between hardware and software.If you're passionate about performance, code quality, and solving complex technical challenges, you'll find real opportunities to grow here. You'll work side by side with our hardware and AI teams, with the chance to influence not just our software stack, but the direction of the hardware itself.What You'll DoDesign and build software components that integrate deeply with Semidynamics hardwareWork across multiple layers of complex systems, from low-level interfaces to higher-level frameworksCollaborate closely with hardware and AI teams to shape both software architecture and hardware capabilitiesProfile, debug,



and optimize code for performance and reliabilityRequirementsWhat You'll BringRequiredStrong experience with modern C++C programming experienceWorking knowledge of PythonExperience with Linux environmentsMultithreading experienceSoftware profiling and debugging (gdb)Strong problem-solving skills and attention to detailEnglish proficiency at C1 levelNice to HavePyTorch dispatcher/ATen internalsvLLMSGLangCMakeLLVM/GCCHardware/software interfacing experienceMulti-GPU deploymentC/C++ and Python interoperability (pybind11)ONNX Runtime execution provider (EP) registrationOpen source contributionsCUDA/ROCmAI kernel developmentBare-metal programmingAI application developmentWorkload analysisWhy Semidynamics?Join one of Europe's most promising deep-tech semiconductor scale-upsAccelerated career development pathHybrid model: 4 days/week at our Barcelona city-center office, 1 day WFH1 week per year of "work from anywhere in the world"Competitive compensation package

📌 Sw Engineer (Madrid)
🏢 Semidynamics
📍 Madrid