Wearable Sensor Test Engineer

BN Associates Inc.; California (MO); On-site; USD 90,000 - 130,000; Full time

Job summary

BN Associates Inc. seeks a Sensor Test Engineer to validate sensors end-to-end for wearable platforms in Sunnyvale, CA. You will work across manufacturing, firmware, and product design to ensure performance, reliability, and production-readiness.

You will develop validation plans, model captouch sensors, and collaborate with cross-functional teams to deliver robust sensor subsystems for next-generation wearables.

Qualifications

• B.S. or M.S. in Electrical Engineering, Mechanical Engineering, Physics, or related field.
• 3+ years of experience in sensor characterization, validation, or test development.
• Experience with FEM simulation tools - COMSOL and/or Ansys (Mechanical & Electronics Desktop).
• Proficiency with lab equipment (oscilloscopes, LCR meters, environmental chambers, data acquisition systems).
• Experience with data analysis tools (Python, MATLAB, or similar).
• Strong understanding of sensor physics (capacitive, optical, inertial).
• Experience interfacing with manufacturing or NPI teams.

Responsibilities

• Develop and execute validation test plans for sensors integrated into wearable hardware (proximity, ambient light, IMU, captouch).
• Prototyping of new hardware/sensors.
• Characterize sensor performance across environmental conditions (temperature, humidity, mechanical stress).
• Analyze sensor data to identify discrepancies and root-cause failures.
• Define pass/fail criteria and contribute to sensor specifications.
• Build and maintain capacitive touch sensor models (FEM/analytical) to predict performance across design variations.
• Conduct captouch sensitivity, linearity, and noise characterization.
• Collaborate with firmware teams for sensor development.
• Partner with manufacturing and NPI teams to define sensor test procedures for production lines.
• Support manufacturing yield analysis and troubleshoot sensor-related production issues.
• Develop and document sensor calibration procedures for factory deployment.
• Communicate with manufacturing teams in China to troubleshoot sensor-related test fixture bring up.

Skills

Sensor characterization

Data analysis

Cross-functional teamwork

Capacit touch modeling

FEM/analytical modeling

Lab instrumentation

Education

B.S./M.S. in Electrical/Mechanical Engineering or Physics

Tools

COMSOL

ANSYS

Oscilloscopes

LCR meters

Environmental chambers

Python

MATLAB

Job description

BN Associates Inc. seeks a Sensor Test Engineer to validate sensors end-to-end for wearable platforms in Sunnyvale, CA. You will work across manufacturing, firmware, and product design to ensure performance, reliability, and production-readiness.

You will develop validation plans, model captouch sensors, and collaborate with cross-functional teams to deliver robust sensor subsystems for next-generation wearables.