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Sphere Defense

European counter-UAS interceptor developer

Principal Machine Learning Engineer - Computer Vision

Full-Time
No salary listed
Expert
Master's, PhD
Brussels, Belgium
In Person
AI & Machine LearningComputer Vision

About the job

Requirements
  • A Master’s degree in Computer Vision, Automation, Robotics, or an equivalent field is required; a PhD is preferred.
  • At least 12 years of experience in relevant industry or academic positions.
  • Exceptional knowledge of machine learning and computer vision.
  • Proficiency in one production language, C++ or Rust, and one prototyping language, Python.
  • Ability to produce production-grade, highly optimized target code on resource-constrained platforms.
  • Ownership experience with complex, production-grade perception pipelines based on vision (infrared and RGB) in commercial systems.
  • Experience implementing and training machine learning models, including data quality topics.
  • Strong understanding of control systems and state estimation.
  • Experience with multimodal sensor fusion, including inertial measurement units, radars, and lasers.
  • Excellent written and spoken English communication skills.
  • Must have the right to work in Belgium; visa sponsorship is not available.
Responsibilities
  • Design and develop autonomous countermeasures to protect allied countries from aerial threats.
  • Own, architect, design, develop, document, and test state-of-the-art perception pipelines based on vision and other data for situational awareness, detection, identification, and target tracking.
  • Integrate, evaluate, and fuse data from electro-optical/infrared sensors, inertial measurement units, radars, and other sources for target chasing.
  • Work hands-on close to hardware when needed during development and tests.
  • Draft and review documentation and design documents.
  • Mentor and support the team when needed.
Desired Qualifications
  • Experience with visual-inertial odometry or simultaneous localization and mapping.
  • Familiarity with ROS2 or iceoryx2.
  • Experience with fixed-wing or vertical takeoff and landing drones, or homing missiles.
  • Experience with infrared/thermal imaging and calibration.
  • Previous experience in the defense industry.
  • French or Dutch language skills.

About the company

Sphere Defense develops autonomous counter-UAS systems to defend airspace from drones. Its flagship product is a jet-powered interceptor guided by AI, designed for mass production with a European-made supply chain using local components. The system can autonomously detect, track, and neutralize hostile drones to protect critical infrastructure and security interests. The company emphasizes European sovereignty, opting for a jet engine over electric motors, and aims to scale production in Europe to reduce dependence on foreign supply chains.

Company Size

11-50

Company Stage

N/A

Total Funding

N/A

Headquarters

City of Brussels, Belgium

Founded

N/A

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Simplify Jobs

Simplify's Take

What believers are saying

  • Ukraine's drone war keeps European militaries buying counter-UAS systems in 2026.
  • Axon's February 2026 minority investment gives Sphere Defense capital and defense-industry credibility.
  • Brussels recruiting in April 2026 shows aggressive team-building toward prototype and production readiness.

What critics are saying

  • Sphere Defense remains pre-revenue in September 2026, with no disclosed orders or fielded contracts.
  • Brussels hiring ads in April 2026 signal dependence on rapid technical execution before customer validation.
  • Diehl, AirShields, and other C-UAS rivals compress margins and can outspend Sphere Defense.

What makes Sphere Defense unique

  • Sphere Defense launched in Brussels in February 2026 with former Sky-Hero executives.
  • It builds jet-powered, AI-guided interceptor drones using European manufacturing and components.
  • BEDEX 2026 showcased a man-portable launch base for sovereign counter-UAS deployments.

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Benefits

  • Health Insurance
  • Meal Benefits
  • Mobility Budget
  • Stock Options
  • Paid Holidays