Ground 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. 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. As our Ground Software Engineer 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 and develop ground software used for mission preparation, execution, and monitoring of hypersonic systems. • Build robust, user facing applications for Linux and Windows environments that support operators and engineers during real missions. • Implement high performance C++ software with a focus on reliability, usability, and maintainability. • Develop intuitive user interfaces and workflows to visualise system state, mission data, and operational status. • Integrate ground software with simulation, test, and live system interfaces to support end to end operations. • Work closely with systems, GNC, test, and operations teams to translate mission needs into effective software tools. • Where useful, leverage UI frameworks (e.g. Qt) and mapping or visualisation SDKs to accelerate development. Who you are • A software engineer with 3+ years’ experience building ground or operator-facing software in aerospace, defence, or complex technical domains. • Comfortable developing user-facing applications on Linux and Windows, with an understanding of operational reliability. • Fluent in modern C++, with an instinct for performance, robustness, and clean architecture. • Someone who cares deeply about operator experience, clarity, and usability in high-pressure environments. • Experienced translating mission and system needs into practical software tools, not just features. • Pragmatic about tooling, with exposure to UI frameworks such as Qt and an interest in visualisation or mapping technologies. • Able to move quickly in a startup environment, balancing polish with delivery speed. • Motivated by building software that operators trust during real missions, not demo-only systems. What we of