Senior Embedded Software Engineer

Help Build Europe's Hypersonic Capability At Hypersonica , we’re redefining what’s possible in European defence technology. We exist to deliver speed, resilience, and technological independence at a pace that sets a new standard. We are a small, elite team working on problems that matter, and solving them fast. By joining Hypersonica , you’re not stepping into a predefined role. You’re joining a talent dense environment where every individual shapes the direction of the company. Our philosophy is to hire a small number of exceptional people with broad, deep technical capability, strong judgement, and the ability to operate autonomously. We hire for talent, not rigid boxes. This role represents a business need, but the way it evolves will be shaped by the individual. If you’ve achieved what others said was impossible, or you bring a unique combination of skills that doesn’t fit a traditional mould, we want to hear from you. The work you do here directly contributes to Europe’s technological independence. What you'll do • Design, develop, and maintain embedded software that runs close to hardware on flight and ground systems. • Implement real time software on Embedded Linux, RTOS, or bare metal platforms, with a focus on determinism, reliability, and performance. • Develop and maintain low level drivers, interfaces, and middleware for sensors, actuators, and avionics hardware. • Write high quality C and/or C++ code that meets the demands of safety critical, high performance systems. • Work closely with electronics, avionics, and systems engineers to co-design hardware and software interfaces. • Support integration, debugging, and testing on real hardware, including bring up, fault isolation, and performance tuning. • Where useful, leverage model based design and code generation (e.g. MATLAB/Simulink) to accelerate development and reduce error. • Contribute to FPGA adjacent development or VHDL based workflows where they interface with embedded software. Who you are • An senior embedded software engineer with 8+ years’ experience working close to hardware in aerospace, defence, or similarly demanding systems. • Comfortable developing on Embedded Linux, RTOS, or bare-metal platforms, with a strong intuition for timing, determinism, and resource constraints. • Fluent in C and/or C++, with a focus on correctness, clarity, and long-term maintainability. • Someone who enjoys debugging on real hardware, not just in simulation or abstraction layers. • Experienced collaborating tightly with electronics and avionics engineers, and shaping interfaces rather than just consuming them. • Pragmatic about tools, open to model-based development where it accelerates delivery without obscuring behaviour. • Curious about FPGA-adjacent workflows and comfortable interfacing with low-level logic when required. • Motivated by building flight-critical software in a small team where your code directly affects system behaviour. What we offer • A mission driven environment with the opportunity to work on one of Europe’s most consequential defence challenges, with direct impact on sovereign capability and security. • Daily collaboration with top experts across engineering, operations, and defence, with real opportunity to learn from the best, contribute, and grow. • High ownership and autonomy; no time tracking, no micromanagement, just clear objectives and accountability for outcomes. • A fast paced environment where good ideas are implemented quickly, and feedback from test and flight drives real decisions. • A culture that values clarity, integrity, and excellence, and supports people who take initiative and push boundaries responsibly. • Competitive compensation and real share options aligned to responsibility and impact, not tenu