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Salary
≈ $60k – $137k per year (Estimated)
Location
In office (Brussels)
Seniority
Middle · 4+ years exp
Visa
No sponsorship (stated in the posting)
Employment
Full-Time

Confirmed on the employer's own hiring board on Nov 13, 2026. First seen by Alion on Aug 19, 2026. Sphere Defense scores A on the Alion truth index.

Overview
Company
Impact
Profile match
Sphere Defense is a fully funded startup that develops autonomous sovereign counter-UAS solutions to give European states effective and affordable countermeasures against aerial threats. It was founded by industry veterans and hires technical recruiters, test, control systems, mechanical and AI and computer vision engineers and CNC programmers. The company is headquartered in Brussels, Belgium.

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 Electronics Engineer that has worked with both high speed digital (integrating SoCs, DDRs, cameras) and analog (power stages, sensing, signal conditioning) designs. Ideally, you have 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 countries from aerial threats

  • Design, develop and test system architectures and electronic boards, both internally and with external partners, with high speed peripherals and sensors

  • Bring up boards and systems, ensuring that all intended functional and performance requirements are met

  • Work with your colleagues to integrate feedback during design reviews

  • Troubleshoot and debug problems, ensuring that issues are addressed as they appear

  • Ensure the designs adhere to the industrial quality standards by drafting test plans and working with test houses for validation and certification

  • Draft production level documentation for the entire product lifecycle

  • Be a team player and a mentor, being available to support 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 Electrical Engineering or equivalent

  • At least 4 years of relevant experience, with significant ownership of complex designs

  • Proficiency with Altium Designer and/or Cadence OrCAD/Allegro

  • Deep electrical engineering skills in both the digital and analog worlds

  • Proficiency with Schematic Capture and PCB Layout design

  • Knowledge of DFM and reliability issues for complex electronics

  • Experience in selecting components and creating production ready documentation (BOM, assy, etc.)

  • Hands on, with demonstrated ability in system bring up and internally prototyping boards

  • Proficient with lab equipment (oscilloscope, spectrum analyzer, etc.)

  • You are a self starter, able to work in a high ambiguity environment and willing to take up new challenges

  • Excellent written and spoken English, French or Dutch is a plus

Preferred Qualifications

  • Ability to write firmware to bring up boards and PC software to test them

  • Experience with FPGAs

  • Experience with Embedded Linux (Yocto)

  • Experience interfacing with EMS and with EOL tests implementation

  • Experience with one or more of the following: RF/antenna design, motor control, rigid flex design, electro optical systems, SI/PDN simulation

What we offer

  • Attractive compensation

  • Year-end bonus eligibility

  • Stock Options Plan eligibility

  • 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.

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