Electronics Engineer

About the Role

Sunfox Technologies is looking for a technically strong and hands-on Senior Electronics Engineer to lead the design, development, debugging, and validation of electronic hardware for advanced medical devices.

The role requires strong experience in analog, digital, mixed-signal electronics, multilayer PCB design, signal acquisition systems, EMI/EMC design, hardware debugging, and production support. The candidate will work closely with embedded, mechanical, software, quality, regulatory, and production teams to convert concepts into reliable, manufacturable, and compliant products.

Key Responsibilities

Electronics Hardware Design

• Design analog, digital, and mixed-signal electronic circuits for medical devices.
• Develop low-noise signal acquisition electronics for biomedical and sensor-based applications.
• Design power supply, signal conditioning, protection, communication, and interface circuits.
• Select components based on performance, reliability, availability, lifecycle, and cost.
• Perform circuit calculations, simulations, and design verification before prototype fabrication.

PCB Design & Development

• Design and review multilayer PCBs using Altium Designer, Autodesk Eagle, Allegro, or equivalent tools.
• Develop PCB layouts considering: Signal integrity, Power integrity, Grounding strategy, EMI/EMC, Thermal management, Creepage and clearance, Mechanical constraints, Manufacturability
• Define stack-up, routing strategy, component placement, and PCB design rules.
• Conduct DFM and DFT reviews before manufacturing release.

Prototype Development & Debugging

• Perform prototype board bring-up and hardware validation.
• Troubleshoot component-level and board-level issues.
• Debug noise, grounding, power, communication, sensor, and signal acquisition problems.
• Use laboratory equipment such as: Oscilloscopes, Logic analyzers, Multimeters, Signal generators, Spectrum analyzers, Electronic loads

Medical Device & Regulatory Support

• Design hardware considering applicable medical device requirements and standards.
• Support activities related to: IEC 60601-1, IEC 60601-1-2, IEC 60601-2-25, where applicable, ISO 13485 design-control environment, ISO 14971 risk-management activities
• Support electrical safety, EMC, functional, and performance testing.
• Assist quality and regulatory teams with technical documentation required for audits and submissions.

Production & Manufacturing Support

• Support engineering builds, pilot production, and mass production.
• Troubleshoot production failures and identify root causes.
• Work with PCB fabricators, EMS partners, component suppliers, and production teams.
• Drive design improvements based on production and field feedback.
• Support alternate component qualification and obsolescence management.

Documentation

• Prepare and maintain: Schematics, PCB design files, BOMs, Gerber and fabrication files, Stack-up specifications, Assembly drawings, Test procedures, Verification reports, Engineering change records, Hardware revision history
• Maintain complete design traceability and controlled documentation.

Required Qualifications

• Bachelor's or Master's degree in Electronics Engineering, Electrical Engineering, Biomedical Engineering, Instrumentation, or a related field.
• 3–6+ years of practical experience in electronics hardware development.
• Strong experience in multilayer PCB design and manufactured hardware products.
• Good understanding of analog and digital electronics.
• Hands-on experience with low-noise signal acquisition and mixed-signal systems.
• Strong debugging and problem-solving skills.
• Practical understanding of EMI/EMC mitigation techniques.
• Experience with professional PCB design tools.

Preferred Skills

• Experience in medical devices, biomedical instrumentation, ECG, EEG, patient monitoring, wearable devices, or similar systems.
• Knowledge of ADCs, analog front ends, operational amplifiers, filters, power management, and sensor interfaces.
• Experience with USB, UART, SPI, I2C, BLE, Wi-Fi, or other communication interfaces.
• Understanding of embedded hardware and microcontroller-based systems.
• Familiarity with medical electrical safety and EMC testing.
• Experience supporting products from concept through production.

Ideal Candidate

The ideal candidate should be capable of taking ownership of a hardware subsystem or complete board from initial concept through schematic design, PCB layout, prototype validation, regulatory testing, and production release.

The candidate should be analytical, practical, quality-focused, and comfortable solving complex hardware problems in a fast-paced product-development environment.

What We Offer

• Opportunity to work on real-world medical technologies.
• End-to-end exposure to medical-device product development.
• Strong ownership of hardware and product-development activities.
• Collaborative work with electronics, embedded, software, clinical, regulatory, and production teams.
• Career growth in a rapidly evolving MedTech organization.