HIL & Simulation Engineer (m/f/d)

We're seeking a skilled and motivated HIL & Simulation Engineer (m/f/d) to join our engineering team and support the integration and validation of unmanned ground vehicles (UGVs). In this role, you will design and maintain Hardware-in-the-Loop (HIL) test systems and simulation frameworks that accelerate system development and ensure robust performance across vehicle subsystems including drive, steering, braking, battery/BMS, and compute.You'll collaborate closely with cross-functional teams to develop automated test cases, integrate real hardware, and simulate complex environments—pushing the limits of autonomous systems validation.

If you enjoy working in a fast-paced, hands-on development environment where innovation, reliability, and system-level thinking matter, this is the role for you.

To join our team, you should be excited to

• Design, build, and maintain HIL testbenches for drive, steering, braking, battery/BMS, compute subsystems, full vehicle systems, and other setups required for UGV development
• Develop UGV and environment simulation models to support integration and validation of components and software using tools such as Simscape, CANoe, or similar
• Author automated test cases; track test coverage and analyze results
• Integrate real hardware such as drivetrain components, sensors, and control units; develop custom interfaces and test harnesses
• Collaborate with software, electrical, and mechanical teams to define requirements, acceptance criteria, and test strategies
• Create dashboards and reports; triage defects with clear reproduction steps and logs; integrate software tools to support these tasks
• Support scenario generation based on field data; generate requirements and derive corresponding test scenarios
• Maintain versioned configurations, test data, and documentation to ensure traceability
• Promote best practices for safety, robustness, and repeatability in test environments
• Coordinate and manage external test and validation laboratories, including planning, commissioning, and follow-up of testing activities

• Experience with HIL development and operation, including testbench hardware, I/O integration, and fault injection
• Proficient in simulation and modeling using MATLAB/Simulink or equivalent tools
• Solid understanding of control systems fundamentals, including sensors, actuators, and vehicle systems, along with test automation
• Skilled in data logging, analysis, and requirements-based validation processes
• Basic proficiency in software programming and working with CAN or Ethernet-based communication protocols
• Strong team player who thrives in a collaborative, fast-paced startup and problem-solving atmosphere
• Proactive and willing to take ownership of tasks; able to work independently and tackle real-world engineering challenges
• Excellent communication skills in English, both written and spoken

• Competitive salary and benefits package
• A shaping role in an emerging dual use company
• Opportunity to work with a highly innovative, international, and dynamic team
• Room for professional growth and development
• Participation in the company's success, with access to regular events, knowledge exchange and meetups

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 areal impact on the security of our democracies, apply here to join ARX and help shape the future of dual-use technology

In addition to a competitive salary package, we offer the opportunity to participate in the company's success. ARX is an equal-opportunity employer, and we encourage candidates from all backgrounds to apply.