KEZAD Senior Electronics Engineer Research & Development

To research, design, develop, integrate and validate electronic solutions for acoustics and ultrasound projects, from concept and feasibility assessment through prototyping, laboratory and field validation, and transfer to production.

The role combines hands-on engineering and applied research with technical leadership. The engineer develops analog, digital and mixed-signal electronics, evaluates transducers and signal chains, conducts experimental research, and converts results into practical engineering solutions. The engineer works across electronics, firmware, mechanical, software, data-processing, manufacturing and operations teams, providing technical guidance, design reviews and knowledge sharing.

• Research and Concept Development
  • Conduct applied research in active acoustics, electroacoustic transducers, acoustic sensing, signal generation and signal acquisition.
  • Translate project objectives, customer needs and operational constraints into measurable system and subsystem requirements.
  • Review relevant technologies, technical literature, patents and available solutions.
  • Develop and evaluate system concepts through analytical calculations, simulations, laboratory experiments and proof-of-concept prototypes.
  • Define key performance parameters, including frequency range, sensitivity, signal-to-noise ratio, dynamic range, distortion and measurement accuracy.
  • Plan experiments, define variables and acceptance criteria, analyse measurement data and correlate results with theoretical and simulation models.
  • Identify technical risks and limitations, document research findings and provide recommendations for further development.
• Electronic Hardware Development
  • Develop electronics for generation, transmission, reception, conditioning and acquisition of acoustic signals.
  • Design low-noise analog front ends, filters, amplifiers, impedance-matching circuits and transmitter/power-amplifier circuits.
  • Develop analog, digital, mixed-signal and power-supply circuits in accordance with system requirements.
  • Select ADCs, DACs, operational amplifiers, drivers, converters, power components, processors, microcontrollers, DSP devices and other electronic components.
  • Perform circuit calculations, simulation, tolerance and noise analysis, power budgeting and thermal assessment.
  • Perform schematic capture, defining requirements for grounding, shielding, signal/power integrity, controlled impedance, isolation and EMC.
  • Perform and review PCB placement and routing, particularly for sensitive analog, high-current, high-voltage and mixed-signal sections.
  • Generate and maintain schematics, BOMs, PCB manufacturing files and engineering specifications.
  • Ensure designs meet reliability, maintainability, DFM/DFT requirements and consider component availability and obsolescence.
• Electroacoustic Transducers and Sensor
  • Integration Evaluate and select suitable acoustic emitters and receivers, including piezoelectric, electromagnetic or other applicable transducer technologies.
  • Design interfaces between transducers and signal-generation/acquisition electronics.
  • Characterise transducer parameters, including impedance, resonance, sensitivity, bandwidth, efficiency, non-linearity and temperature dependence.
  • Define excitation waveforms, voltage and current requirements, operating duty cycles and protection requirements.
  • Develop signal-conditioning solutions for low-level acoustic and vibration measurements.
  • Support the development of transducer packaging, mounting, acoustic coupling and environmental protection methods.
  • Analyse mechanical, thermal and environmental effects on electroacoustic performance and contribute to calibration, error budgeting and compensation.
  • Participate in the design of calibration methods and reference measurement arrangements.
  • Work with firmware and software engineers on digital correction, filtering, calibration and signal-processing functions.
• Modelling and Signal Analysis
  • Develop analytical and numerical models of electronic and electroacoustic subsystems.
  • Perform DC, AC, transient, noise and tolerance analyses.
  • Analyse acoustic measurements in time and frequency domains using spectral analysis, filtering, correlation and other signal-processing methods.
  • Estimate SNR, frequency response, harmonics, distortion, phase response and system stability.
  • Develop scripts and engineering tools for measurement processing, test automation and comparison of experimental results.
  • Support signal-processing algorithm development and maintain traceability between requirements, models,…