Senior Software Engineer (C++)

About the Role
Join ARX Robotics Ukraine in Kyiv as a Senior C++ Developer and build software for autonomous ground systems that support defence teams. Your work will connect onboard software with the interfaces operators use, helping our robots perform reliably in the lab and in the field.
If you enjoy working across software and hardware, investigating problems hands-on and adapting as prototypes evolve, you’ll find plenty to take on.
*Deep ROS 2 experience is not required - the team will support you as you learn.
What You'll Build
Develop modern C++ components, taking robotic systems from early prototypes to production-ready software.
Build Qt/QML operator applications for telemetry, video streams and robot control.
Integrate and extend ROS 2 nodes and communications between onboard and ground software.
Test software through unit, integration and end-to-end testing, in simulation and on real hardware.
Support field trials, investigate failures and turn findings into reliability improvements.
Maintain build, test and deployment workflows using CMake, Docker, Python and CI.
Document architecture decisions, configurations and test results so colleagues and partners can work with the systems you build
What You Bring
3+ years of professional C++ development, with a solid grasp of C++17/20
Practical concurrency skills, including synchronization, thread pools, lock-free approaches and diagnosing race conditions.
Confidence investigating software issues with gdb, sanitizers, Valgrind or similar tools.
Hands-on experience building desktop interfaces with Qt5/Qt6 and QML.
Strong Linux skills, including system administration, scripting and troubleshooting.
Python experience for automation and testing, plus Docker for reproducible builds and deployment.
Experience with automated testing frameworks such as GoogleTest or pytest.
Upper-intermediate English for technical documentation and collaboration.
Nice to have:
Experience with ROS 2, Zenoh or other robotics middleware, UAVs or autonomous vehicles, or embedded Linux platforms such as NVIDIA Jetson.
Camera and video integration with RTSP or GStreamer; ELRS or MAVLink; networking and VPN configuration; or ground control applications such as QGroundControl or Mission Planner.
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
Competitive salary and benefits package
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
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.
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