Principal Engineer - Driver Development

Role & responsibilities

• Design, develop, and maintain C#/.NET/C++ -based device drivers and control software for hardware modules used in automated test systems.
• Architect scalable driver frameworks to support multiple hardware revisions and device configurations.
• Implement robust communication layers (USB, UART, SPI, I2C, Ethernet, or custom interfaces) between host applications and embedded hardware.
• Ensure drivers support high reliability, deterministic behavior, and safe hardware interaction in production test environments.
• Develop reusable driver libraries and APIs for integration with test automation frameworks and system software.
• Work closely with STM32 microcontroller-based boards to develop and validate host-side control drivers.
• Interface with embedded firmware teams to define communication protocols, command structures, and data exchange mechanisms.
• Support firmware bring-up activities by validating register-level communication and device control sequences.
• Understand microcontroller peripherals such as ADC, DAC, GPIO, PWM, SPI, I2C, and UART for driver integration.
• Utilize laboratory instrumentation to support debugging and validation activities, including and not limited to Oscilloscopes, Digital Communication Analyzers (DCA), Power supplies, Power meters, Network analyzers.
• Perform signal integrity checks, timing measurements, and power characterization during system validation.
• Correlate hardware measurements with software logs to identify system issues.
• Apply best practices in software architecture, code quality, and maintainability for long-term product support.
• Identify opportunities to improve test automation, system reliability, and development efficiency.
• Contribute to the evolution of driver frameworks and testing infrastructure used across the organization.

Preferred candidate profile

• Hands-on experience working in the **Test & Measurement domain**, preferably in industries such as:

• Semiconductor testing

• Optical communications

• Electronic manufacturing

• Automated test equipment (ATE) systems

• Experience designing and implementing automated test routines and diagnostic tools.

• Understanding of measurement techniques, calibration processes, and data acquisition systems.

• Basic to intermediate knowledge of embedded firmware development, preferably with microcontrollers such as STM32 or similar platforms.

• Familiarity with firmware debugging, boot processes, and embedded communication protocols.

• Understanding of how host software interacts with embedded firmware through command interfaces or control protocols.

• Exposure to optical communication systems and optical transceiver testing is highly desirable.

• Familiarity with optical test setups involving:

• Optical power measurements

• Signal integrity validation

• High-speed interface testing

• Understanding of optical module characterization and validation workflows.