Senior Design Test Engineer (m/f/d)

About the Role This is your opportunity to shape the safety and reliability of next-generation autonomous systems. As a Senior Test Design Engineer at ARX Robotics, you will be at the heart of our verification and validation efforts, ensuring the robotic platforms we build are robust, safe, and ready for real-world challenges. You will join a team dedicated to excellence, where your work directly contributes to our mission of enhancing security and operational effectiveness for our partners. This role is for you if you are driven by technical rigor and motivated by the challenge of certifying cutting-edge technology in a safety-critical domain. What You’ll Build You will develop the master plans that guide how we test and validate our autonomous robotic systems. You will shape test strategies for our platforms, translating complex system requirements into clear, verifiable objectives. You will design and write robust test cases for critical functions, from autonomous navigation and obstacle detection to fail-safe behaviors. You will create sophisticated test scenarios using hardware-in-the-loop (HIL) and software-in-the-loop (SIL) environments. You will drive the verification and validation efforts that lead to successful product certification for military and European standards. You will build the essential evidence packages that demonstrate the safety and reliability of our systems to certification authorities. You will produce clear, comprehensive test documentation that serves as the foundation for our safety and quality arguments. You will collaborate across engineering teams to integrate testing deeply into our design and development lifecycle. What You Bring A strong background (5+ years) in test engineering, V&V, or system safety, ideally from a regulated industry like defense, aerospace, or automotive. An academic foundation in systems engineering, computer science, or a related technical field. Experience guiding products through formal certification or military acceptance processes. A talent for creating clear, effective, and unambiguous test cases from complex requirements. Proficiency with requirements and traceability tools (such as DOORS, Polarion, or Jama Connect). Experience testing embedded systems, ideally using HIL/SIL setups. Familiarity with key safety standards (like MIL-STD-882E or the EU Machinery Regulation). An interest in autonomous systems, unmanned ground vehicles (UGVs), or robotics platforms. Excellent communication skills in English. Please note: You do not need to meet every single requirement to apply. We welcome motivated candidates who are eager to grow into the role and develop their expertise further. What We Offer Join a mission-driven European defense tech company at a pivotal stage of growth, where you can help shape meaningful technology, take ownership early, and grow with the business! Competitive compensation package including a bonus opportunity 27 vacation days to start, increasing with tenure up to 30 days Employer-supported pension contribution Learning & development support and team events budget Employee discounts and flexible benefits budget via Probonio Hybrid working setup depending on role and team needs Structured salary bands, levelling framework, and bi-annual development conversations Referral bonus program, dog-friendly office, and relocation support where applicable About Us ARX is a dual-use technology company that specializes in developing autonomous unmanned systems and sensors for the European defence sector. Our dual-use unmanned ground systems and sensors assist NATO Armies and civilian first responders in tackling their most challenging problems by providing them with training and information to make better decisions and take effective actions in life-or-death situations. As our team continues to expand rapidly, we are seeking motivated candidates who are excited to work in a highly energetic, creative, and innovative team dedicated to developing autonomous systems for challenging environments. We operate in a dynamic sector where collaboration, sharing innovative ideas, and developing novel problem-solving strategies are ingrained in our work culture. If you are passionate about overcoming challenges that have a real impact on the security of our democracies, apply here to join ARX and help shape the future of dual-use technology! ARX is an equal-opportunity employer, and we encourage candidates from all backgrounds to apply. You can find ARX Robotics Applicant Privacy Policy here .