---
title: 'Electronics Engineer at Sphere Defense'
canonical: 'https://feeny.ai/job/electronics-engineer-sphere-defense-brussels-3vxk41b2z146'
type: 'job'
last_seen: '2026-09-13'
---

# Electronics Engineer at Sphere Defense

- **Company:** Sphere Defense
- **Location:** Brussels, Belgium
- **Employment:** full-time
- **Work type:** onsite
- **Posted:** 2026-08-19
- **Last confirmed live:** 2026-09-13
- **Apply:** https://jobs.ashbyhq.com/sphere-defense/1ea0c5e8-5c44-4bd6-85f2-85dd8dffe423

## Job description

## 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.

## About Sphere Defense

## Company Overview
- **One-liner**: Sphere Defense is a Brussels-based deeptech defense startup developing sovereign European counter-drone interceptors with AI-driven autonomous guidance, designed for kinetic interception of strike drones and point defense of critical infrastructure.
- **Entity Type**: Private (fully funded startup; funding rounds not disclosed)
- **Headquarters**: Brussels, Belgium
- **Founded**: 2025 (incorporated 3 December 2025)
- **Founders**: Not publicly named – described as drone industry veterans with international experience and previous successful exits.

## Core Business
- **Primary industry**: Defense / Aerospace & Defense / Counter-UAS (Counter-Unmanned Aerial Systems)
- **Target customers**: Allied governments, military forces, and operators of sensitive infrastructure (power plants, ports, airports, government/military sites)
- **Mission**: *“To keep allied countries safe with sovereign, effective and seamless countermeasures and protect them from aerial threats.”*

## Products & Services
- **Scalable Effector**: Kinetic intercept capability for strike drones. Point defense layer cued by third-party detection and C2, embedded into larger layered C-UAS architectures. Rapid setup, BVLOS interception.  
- **Jet-Powered Platform**: Multi-role interceptor with minimal footprint, maintenance-free operation, EW-hardened radio datalink, and AI-driven autonomous guidance.  
- **Embedded AI**: Multi-sensor fusion, autonomous last-mile target lock trained on millions of visual signatures, predictive targeting and guidance, human-AI teaming with flexible rules of engagement.  
- **Man-Portable Launch Base**: Autonomous deployment of interceptors with seamless logistics. SAPIENT-native, C2-agnostic, interoperable with existing defense infrastructure.

## Market Standing
- **Valuation**: Not disclosed (very early-stage, pre-revenue)
- **Key Metric**: Total funding not publicly disclosed – described as “fully funded” in recent job postings.
- **Notable Investors/Partners**: Not publicly named. Publicly debuted at BEDEX 2026 (Belgian defense industry exhibition). European procurement context includes Belgium engaging Origin Robotics, Anduril, COBBS, and Nokia for related programs.
- **Growth Signals**: Very recent incorporation (Dec 2025); already exhibiting at BEDEX 2026; active recruitment for core engineering team (Senior Robotics Software Engineer). Poised to benefit from surging EU demand for sovereign C-UAS capabilities.

## Competitive Advantages
- **EU-sovereign by design**: Engineered in Belgium, manufactured in Europe, EU-centric conflict-resilient supply chain. Money spent on defense stays in Europe.
- **Cost efficiency**: Claimed to be 200× cheaper per interceptor than the drones they target, making layered C-UAS economically sustainable.
- **AI-driven autonomy**: Embedded AI trained on millions of visual signatures, predictive guidance, and flexible human-AI teaming.
- **Architecture agnostic**: Acts as an effector layer cued by third-party detection and C2, easily integrated into existing layered C-UAS systems.

## Strategic Focus
- **Current priorities**: Build core engineering team; scale manufacturing in Europe; win initial contracts with allied defense ministries; establish supply chain sovereignty.
- **Direction**: Become the standard European kinetic counter-drone interceptor, expanding to additional platforms and AI capabilities.

## Why Work Here
- **Mission-driven impact**: Directly protect allies from the #1 cause of military casualties in Ukraine (drones cause >70% of casualties). Opportunity to shape the future of autonomous defense.
- **Early-stage ownership**: Be one of the first members of a high-performing team; shape software, perception architecture, and product direction.
- **Tech stack**: C++ for production, Python for prototypes, ROS2, simulation environments (Gazebo, Foxglove), PX4 flight controllers, Rust preferred. Work on autonomous flying vehicles, sensor fusion, VIO/SLAM, ML, reinforcement learning.
- **Compensation**: Attractive base pay plus stock options (depending on geography/position).
- **Location**: Onsite in Brussels, Belgium. Office at Rue d’Enghien 18, 1080 Brussels.
- **Culture**: High-ambiguity, self-starter environment; team of hard-working, autonomous, creative people. French or Dutch is a plus but English is primary.
- **Team size**: Very small (early-stage). Founder team includes industry veterans with previous successful exits.

## Sources
1. [Sphere Defense Official Website](https://www.sphere-df.com/)
2. [TechWiki Belgium Profile](https://techwiki.be/be/wiki/companies/sphere-defense)
3. [BEDEX 2026 Exhibitor Page](https://www.bedex.brussels/en/bedexexhibitors/details/sphere-defense~50f9e73a-2dea-f4ff-779e-3a1f1c9a0b08)
4. [Senior Robotics Software Engineer Job Posting (CareersInRobotics)](https://careersinrobotics.com/jobs/senior-robotics-software-engineer-defense-drones-iil)
5. [Sphere Defense Contact Page](https://www.sphere-df.com/contact)

## Other roles at Sphere Defense

- [Drone Lab Technician, C-UAS](https://feeny.ai/job/drone-lab-technician-c-uas-sphere-defense-brussels-p8r2e01jq9hn) — Brussels, Belgium
- [Drone Test Pilot & Tech, C-UAS](https://feeny.ai/job/drone-test-pilot-tech-c-uas-sphere-defense-brussels-enbdj9dgmsyq) — Brussels, Belgium
- [Senior Program Manager, Defense](https://feeny.ai/job/senior-program-manager-defense-sphere-defense-brussels-vrxe72jjwa8b) — Brussels, Belgium
- [Senior Firmware Engineer, Autonomous Systems](https://feeny.ai/job/senior-firmware-engineer-autonomous-systems-sphere-defense-brussels-z2hew9brs06a) — Brussels, Belgium
- [Firmware Engineer, Autonomous Systems](https://feeny.ai/job/firmware-engineer-autonomous-systems-sphere-defense-brussels-6xxrwtf9wjyg) — Brussels, Belgium
- [Embedded Software Engineer, Robotics](https://feeny.ai/job/embedded-software-engineer-robotics-sphere-defense-brussels-db0zr18xjh3c) — Brussels, Belgium
- [Principal Perception Engineer, CV/ML](https://feeny.ai/job/principal-perception-engineer-cv-ml-sphere-defense-brussels-d07y2apkqv4s) — Brussels, Belgium
- [Embedded Software Engineer](https://feeny.ai/job/embedded-software-engineer-sphere-defense-brussels-7x1z622xmcn1) — Brussels, Belgium
- [Senior Robotics Software Engineer](https://feeny.ai/job/senior-robotics-software-engineer-sphere-defense-brussels-93k7p9ba8hsp) — Brussels, Belgium
- [Senior Electrical Engineer](https://feeny.ai/job/senior-electrical-engineer-sphere-defense-brussels-e97mapw38yk2) — Brussels, Belgium