The day-to-day

• Own the Linux platform: design, build, and maintain our embedded Linux distribution (Yocto Project) across our UAV compute boards — you are the owner of the whole Linux stack.
• Bring up hardware: bootloader (U-Boot), kernel configuration, device tree, and driver integration for new boards, sensors, and peripherals.
• Own the update strategy: design and maintain robust, fail-safe update mechanisms (A/B, atomic rollback) for OS, kernel, and firmware on deployed drones — ideally OTA.
• Integrate the flight stack: work alongside the PX4 flight controller and companion compute, wiring the Linux side into the wider system.
• Collaborate cross-team: work with hardware, avionics, and systems teams to ensure robust end-to-end UAV operation.
• Test in the field: support lab testing and live flight trials, including debugging and performance tuning on-site.

You should apply if you

Nice to haves

• PX4: familiarity with PX4 (or ArduPilot) flight control software.
• Containers & CI: Docker and CI/CD pipelines for reproducible builds.
• Fleet scale: experience operating OTA updates across a fleet of devices.
• Domain: exposure to defence, aerospace, or other mission-critical sectors.
• Electronics: background in electronics development, including schematic design and Altium Designer.

What We Offer

• Real impact & ownership: Shape high-tech defense systems and take responsibility from day one
• Mission-driven environment: Work on technologies that matter for European security and sovereignty
• Competitive package: Competitive salary, EGYM Wellpass, corporate benefits, and equity options aligned with role and level
• Deep tech environment: Get hands-on experience with cutting-edge drone technology and real operational use cases
• Grow fast: Steep learning curve for juniors, strategic influence and leadership opportunities for seniors
• Startup mindset meets defence innovation: flat hierarchies, fast decisions, and space for your ideas.

About Us Twentyfour Industries is committed to building a fair, inclusive, and high-performance workplace where people from all backgrounds can contribute and thrive. Our team brings together individuals with different perspectives, experiences, and skills to shape the future of European security and technology.

All applicants will receive equal consideration for employment regardless of gender, age, disability, ethnic or social origin, religion or belief, sexual orientation, or any other status protected by applicable European or national law.

We particularly welcome applications from individuals who are underrepresented in the technology and defense sector, including women, people with disabilities, and those from diverse cultural backgrounds.

We aim to provide a respectful, supportive, and transparent recruitment process. If you require adjustments to take part in our hiring process, please let us know so we can accommodate your needs.

If you share our mission and are motivated to work on challenges with real-world impact, we look forward to your application.