Senior Robotics Software Engineer
Confirmed on the employer's own hiring board on Sep 29, 2026. First seen by Alion on Mar 31, 2026. Sphere Defense scores B on the Alion truth index.
Who we are
Sphere Defense is a fully funded technology startup with the mission of providing allied countries with sovereign, effective and seamless autonomous countermeasures to neutralize todays’ and tomorrow’s aerial threats.
Sphere Defense was founded by industry veterans with previous successful exits, and is headquartered in Brussels, Belgium, in the heart of Europe.
About you
You are an experienced and highly motivated Senior Robotics Engineer that has worked with autonomous systems. Ideally, you have worked on flying vehicles or mobile robots.
What you’ll do
You will shape the software & perception architecture, design and implementation for our autonomous, flying countermeasures.
Be one of the first members of a high-performing team, designing and developing autonomous countermeasures to protect allied countries from aerial threats
Own, design, develop, document and test high-performant and reliable autonomous systems, design and implement algorithms and software running on resource-constrained devices (Linux-based)
Identify, integrate and test sensors, including cameras, for autonomous flying countermeasures
Build high-fidelity simulations and digital twins for offline and online scenarios
Be hands-on, working close to the hardware when needed during development and tests
Establish CI/CD pipelines for non-regression testing and automated builds
Draft and review documentation and design documents
Be a team player and a mentor, being available to support and grow the team when needed
Location: Onsite in Brussels, Belgium. Our office is close to Central Station.
Reports to: Chief Technology Officer
Requirements
Bachelor’s or Master’s degree in Robotics, Mechatronics, Control Systems, Computer Science or equivalent
Demonstrated experience in the role, with significant ownership of one or more subsystems of complex, robotics products
At least 8 years of experience in a relevant position
Proficiency with C++ for production systems and Python for prototypes
Experience with ROS2 or other middleware
Proficiency with state estimation techniques, perception, sensor fusion and autonomy
Experience using simulation and visualization environments for robotics (Rviz, Foxglove, Gazebo, etc.)
Exposure to electro-mechanical systems integration
Ability to quickly prototype independently, using off-the-shelf electronic components
Excellent interpersonal communication skills in written and spoken English; French or Dutch is a plus
You are a self-starter, able to work in a high-ambiguity environment and willing to take up new challenges
Preferred Qualifications
Proficient with Rust
Experience with the PX4 flight controller or other flight controllers
Experience selecting sensors (thermal, RGB cameras, laser rangefinders, IMUs, etc.) and actuators (servo motors, geared motors)
Experience with drones, missiles, rockets or other flying vehicles
Experience with one of the following: VIO/SLAM, ML model training, reinforcement learning
What we offer
Attractive compensation
Year-end bonus
Stock Options Plan
Mobility Budget
32 days of holidays
Meal vouchers
Private Health insurance
We are building a core team of hard-working people. If you want to join a company with tremendous impact and you are autonomous, creative and driven, we want to hear from you!
Sphere Defense offers attractive compensation, stock options, and a unique opportunity to change the global defense landscape.
This role is only open to candidates with right to work in Belgium. We cannot provide visa sponsorship at this time.