Sensor Validation & Captouch Engineer

We are looking for a Sensor Validation & Captouch Engineer to join the hardware team. This role is responsible for end-to-end sensor validation, capacitive touch (captouch) modelling, and testing on next-generation wearable platforms. You will work closely with cross-functional teams including manufacturing, firmware, systems integration, and product design engineering to ensure sensor subsystems meet performance, reliability, and production-readiness requirements.

Key Responsibilities
Sensor Validation
Develop and execute validation test plans for sensors integrated into wearable hardware (e.g., proximity, ambient light, IMU, captouch)
Prototyping of new hardware/sensors.
Characterize sensor performance across environmental conditions (temperature, humidity, mechanical stress)
Analyze data sensor data to identify discrepancies and root-cause failures
Define pass/fail criteria and contribute to sensor specifications
Captouch Modelling & Testing
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
Manufacturing Interface
Previous experience in a fast-paced hardware development environment (EVT/DVT/PVT cycles) - must have
Partner with manufacturing and NPI (New Product Introduction) 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.
Cross-Functional Collaboration
Work with Product Design Engineers, Systems Integration Engineers, and Electrical Engineers
Coordinate with firmware/software teams on sensor driver integration and tuning
Provide sensor performance data and recommendations to support system-level trade-off decisions
Contribute to design reviews and risk assessments

Required 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

Preferred Skill
5+ yrs of experience.
Experience in capacitance extraction and electrode simulation
Familiarity with consumer electronics or wearable device development
Experience with embedded systems and sensor firmware debugging
Knowledge of touch controller ICs (CSD/CSX sensing methods) and their configuration/tuning
Strong communication skills for cross-site and cross-functional collaboration