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Sphere Defense

European counter-UAS interceptor developer

Test Engineer

Full-TimeUpdated on 10/14/2026
No salary listed
Mid
Bachelor's
Brussels, Belgium
In PersonOnsite in Brussels, with travel to Nivelles, Walloon Brabant.
Manufacturing Quality & TestInspection & Test

About the job

Requirements
  • A bachelor's degree, Technical High School diploma, or equivalent.
  • Demonstrated rigor, precision, and attention to detail.
  • Hands-on troubleshooting capabilities in electronics and mechanical domains.
  • Experience designing and building test, alignment, and calibration procedures and jigs for complex electromechanical products.
  • Experience writing procedures for and executing end-of-line tests and outgoing inspection.
  • Ability to draft and maintain process documentation.
  • Proficiency with electronics and mechanical design for jigs.
  • Ability to work self-directed and proactively.
  • Excellent spoken and written English.
  • Right to work in Belgium; visa sponsorship is not available.
Responsibilities
  • Design and implement test, alignment, and calibration procedures for aerospace-grade electromechanical components and assemblies.
  • Realize companion software for jigs and procedures.
  • Establish repeatability and quality standards for components and products, including establishing and enforcing acceptable quality levels.
  • Execute end-of-line testing and outgoing inspection for small batches and pilot productions.
  • Draft and maintain manufacturing control plans with design teams and partners.
  • Travel to partner manufacturing facilities to train local production teams and help start up production.
Desired Qualifications
  • Dutch or French language skills.
  • Experience working with an AS9100 quality management system.
  • Experience working in aerospace, medical, automotive, or another regulated industry.
  • Experience working in a fast-paced, engineering-driven environment.

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