Senior Electronics Hardware Engineer
About the job
- A Bachelor's or Master's degree in Electrical Engineering, Electronic Engineering, or a related field.
- At least 5–7 years of experience in electronic hardware design and development, ideally in automotive or e-mobility.
- Strong understanding of analog and digital circuit design principles.
- Strong, in-depth understanding of BLDC motors and control systems.
- Understanding of battery management systems and battery protection mechanisms.
- Experience with radio technologies such as BLE 4.0, EDGE, LTE-M, GNSS, and Qi 1.2.4/Qi2.0.
- Experience creating schematics and PCB LGA/BGA layouts.
- Experience in antenna placement within complex 3D environments.
- Strong proficiency with Altium Designer.
- Hands-on experience and willingness to manually assemble PCBs with solder paste and a reflow oven.
- Hands-on experience with lab equipment: Vector Network Analyser, Oscilloscope, and logic analyser.
- Experience with RED, EMC, and CE testing and certification processes.
- Strong hardware debugging, troubleshooting, validation, and verification skills.
- Ability to manage multiple tasks, working both independently and within a multidisciplinary team.
- Design and develop analog, digital, and mixed-signal circuits for cellular/BLE/GNSS communication modules and sensor systems, including schematics, PCB and antenna layout, and design reviews.
- Select components based on performance, cost, availability, reliability, and lifecycle risk.
- Drive RED and CE certification and EMC compliance for electronic subsystems, including test preparation, lab coordination, and issue resolution; work with test houses and notified bodies.
- Provide technical follow-up for Asian suppliers conducting outsourced development projects.
- Validate hardware through bench testing, system integration, environmental and reliability testing, and field trials to confirm compliance with design specifications.
- Bring up prototypes, troubleshoot hardware issues, perform root cause analysis, and implement corrective actions.
- Coordinate with EMS partners and component suppliers on manufacturing qualification and transfer.
- Participate in design reviews and provide technical input on system architecture, risk assessment, and design trade-offs.
- Maintain schematics, test reports, bills of materials, qualification records, and engineering change documentation.
- Analyze test results and recommend design improvements for performance, manufacturability, and reliability.
- Work with the firmware team on embedded hardware and software co-design and integration.
- Implement new powertrain systems on e-bikes, including battery management systems, BLDC motors, motor controllers, and torque sensors.
- Experience with Nordic chips and/or uBlox modules.
- Experience with CANopen.
- Experience with dynamic powertrain control systems.
- Experience with battery-powered low-power systems.
- Familiarity with EMS and manufacturing partner qualification processes.
- Experience with C++ and ZephyrOS.
- Experience with e-bike powertrains, including BLDC motor systems and battery management systems, is a strong plus.
- Hands-on experience navigating CE, RED, and other electronics certifications.
About the company
Cowboy designs and sells connected electric bikes for urban commuters. They use a direct-to-consumer online model complemented by test-ride locations, service centers, and a subscription-based Cowboy Care for maintenance, insurance, and accessories. The bikes have a lightweight frame with a removable battery, a carbon belt drive, integrated lights, and a mobile app that provides a secure digital key, GPS theft protection, ride data, and route navigation, plus AdaptivePower that adjusts motor output automatically. They stand out through their design language, modular hardware, and social/environmental focus (B Corp certification in 2022), while controlling branding and customer experience via direct sales and retail presence, with a goal to make e-bikes a mainstream transport option.
Company Size
201-500
Company Stage
Acquired
Total Funding
$147.1M
Headquarters
City of Brussels, Belgium
Founded
2017
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Simplify's Take
What believers are saying
- September 9, 2026: Cowboy says it is back and adding 50 shops soon.
- ReBirth restarted production in January 2026 and is clearing backlog, restoring spare parts, and shortening deliveries.
- France expansion uses ReBirth’s 95 Oxygen stores, 10 Ovelo stores, and 500 dealers.
What critics are saying
- Cowboy’s 2024 report showed €21 million losses, €56 million debt, and negative €43 million equity.
- The May 2025 C4 ST MR recall exposed frame failures after 2,500 kilometers and damaged trust.
- ReBirth owns 80% after a rescue; failure to hit 2027 breakeven can trigger another collapse.
What makes Cowboy unique
- Cowboy combines connected-bike software, with Connect games, theft alerts, and crash detection.
- Brussels design team and ReBirth manufacturing network separate product development from industrial execution.
- Its minimalist, lightweight e-bikes still target urban commuters who value style, app integration, and convenience.
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Benefits
Flexible Work Hours
Growth & Insights and Company News
6 month growth
1%1 year growth
0%2 year growth
0%Another independent rides off into the sunset. | Image: Cowboy The Brussels-based electric bike company has officially closed its deal to be acquired by ReBirth Group Holding, which also owns...
Brussels-based e-bike manufacturer Cowboy has been acquired by French industrial group ReBirth. The takeover marks the departure of Cowboy's chief executive officer and co-founder Adrien Roose from the company. No financial details of the transaction have been disclosed.
Brussels-based electric bike company Cowboy has been acquired by ReBirth Group Holding, which owns cycling brands Peugeot, Gitane and Solex. The deal includes undisclosed funding from ReBirth and €15 million from existing shareholders. The funding will restart production and address a backlog of spare parts. ReBirth is the parent of Re-cycles, the French manufacturer that took over Cowboy's e-bike assembly operations earlier this year. Cowboy faced significant challenges in 2025, including delayed deliveries and repairs, and a costly frame recall that brought the company close to bankruptcy. The company's design, engineering and software teams will continue operating independently from Brussels, though founder and chief executive Adrien Roose has departed.
Brussels-based e-bike company Cowboy was saved from bankruptcy by a takeover from French e-mobility firm Rebirth, which invested €15 million and acquired an 80% stake. Rebirth plans to cut costs and expand Cowboy's retail presence. Cowboy is projected to lose €8-10 million this year with a turnover of €20-22 million, aiming to break even by 2027 with €40 million turnover. Original investors lost most of their investment, retaining only 20% of the company.
French conglomerate ReBirth is acquiring the struggling Brussels-based e-bike brand Cowboy. ReBirth is investing €15 million in the rescue, securing an 80% stake in Cowboy.