← All jobs

Posted Mar 31, 2026

Control Systems Engineer

Sphere Defense

Brussels

engineeringfull-timeon-site
droneintegrationdefense

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 Control Systems Engineer that has worked with complex production-grade flight control systems. Ideally, you’ve worked with flying robots.

What you’ll do

  • 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, with a focus on flight control

  • Architect, implement and tune control systems for high-speed, high maneuverability flying robot, including thrust-vectoring and control surfaces actuation

  • Build and maintain high-fidelity HIL and SIL simulation

  • Be hands-on, working close to the hardware when needed during development and tests

  • 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

Requirements

  • Bachelor’s or master’s degree in Control Systems, Aerospace engineering, or equivalent

  • Proficiency with Matlab and Simulink or equivalent for system modeling

  • Proficiency with one production language (C++) and one prototyping language (Python)

  • Demonstrated ownership of complex control system architectures in commercial systems

  • Deep understanding of classical and modern control methods, including RL-based techniques

  • Experience with ROS2 and Gazebo

  • Experience with tuning flight vehicle characteristics

  • Experience with PX4 flight controller or other flight controllers

  • Experience with sensor fusion (IMUs, radars, etc.)

  • 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 VIO/SLAM integration

  • Passion for RC controlled drones (quadcopters, VTOLs)

  • First-hand experience with aerodynamics design and servo-actuators

What we offer

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 (depending on geography and position) and a unique opportunity to change the global defense landscape.

Explore more roles

Browse all jobsMore engineering rolesJobs in Brussels

Related Jobs

No closely related roles found yet.

More from Sphere Defense

No additional active roles from this company right now.

Ready to take off?

Join a team building the future of autonomous aviation and unmanned systems.