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Lead Sensor Engineer
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OSI Engineering, Inc.
Remote
$350,000 Salary, Full-Time
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Job Description
Lead Sensors Engineer / Sensor Architect You ll own sensor architecture and sensing system development for a breakthrough stealth-stage neurotechnology and brain-computer interface (BCI) startup building an AI-powered neural interface platform. In this role, you will lead the development of the wearable sensing stack, with primary ownership of PPG (Photoplethysmography), optical sensing, heart-rate and HRV estimation, and multimodal sensor fusion. You will help bring a next-generation wearable to market by combining optical, inertial, temperature, and environmental sensing systems into a highly integrated AI companion platform. The product is a sensor-rich textile wearable that combines EEG, physiological sensing, environmental awareness, and AI-driven personalization. This role requires deep expertise in wearable sensing systems, signal processing, sensor integration, and production-ready consumer hardware development. What You''''ll Do Own the non-EEG sensing architecture across the platform, including optical, inertial, temperature, and environmental sensing systems. Lead PPG system development from architecture through production, including sensor selection, optical front-end design, skin interface development, and motion-robust heart-rate and HRV algorithms. Define and evaluate the complete sensor suite, including PPG and optical sensing Accelerometers and gyroscopes Body temperature sensing Environmental sensing including humidity, light, ambient temperature, and barometric pressure Own sensor selection, benchmarking, BOM strategy, and second-source planning across the sensing platform. Develop signal conditioning, calibration, characterization, and validation methodologies across all sensing systems. Architect sensor-fusion strategies that combine multiple sensing streams into reliable inputs for the AI platform. Partner closely with Electrical Engineering, Firmware Engineering, Product Design, Reliability, and AI/ML teams to deliver an integrated sensing platform. Define sensor electrical, mechanical, and firmware interfaces, including synchronization and cross-sensor timestamping requirements. Drive technical reviews, design documentation, validation plans, and production readiness activities. Work directly with external engineering teams and manufacturing partners while maintaining ownership and accountability for delivered sensing solutions. Help build and scale the sensing organization as the company grows.