Health Sensing HW - Module Design Engineer

The Health Sensing Hardware team is looking for a highly-motivated optical engineer to work on the next-generation of optical health sensors.

The successful candidate will be able to leverage training in optical system design, modeling and fabrication to develop the optical health sensors in the Apple Watch and AirPods. This candidate should also be adept at analyzing user data to infer real-world performance trends and emergent behavior. Lastly, the candidate must be able to distill simulation and empirical results into concise design assessments to cross-functional collaborators and senior management.

You will be working with a team of research scientists and hardware engineers developing technologies for the optical health sensors. You will be responsible for the optical design of the sensor via simulations and prototype-based assessments, user studies and analysis of sensor performance. The role also requires strong data analysis skills to infer trends and dependencies in the data to improve the understanding of skin-sensor interactions and directly impact the design and performance of the health sensors. This is a highly cross-functional role and will require close collaboration with mechanical, electrical and software engineers. Lastly, you will be responsible for delivering detailed assessments and designs evaluations to leadership and cross-functional partners.

The ideal candidate will be a hardware engineer with demonstrated expertise in the comprehensive design and development of optical assemblies and platforms that seamlessly integrate electro-optical components such as LEDs and VCSELs with mechanical systems. This role requires proficiency in industry-standard ray-tracing and optical design software tools, with the ability to leverage these platforms for sophisticated optical system modeling and optimization. The candidate is also expected to have extensive experience in signal processing techniques to analyze and interpret optical bio-signals (e.g. PPG). Success in this role requires strong cross-functional collaboration capabilities, particularly the ability to drive optical sensor development initiatives while effectively coordinating efforts across mechanical engineering, electrical engineering, and other technical disciplines. The candidate must have hands-on experience with optical system design, prototyping and characterization, culminating in defining requirements and detailed specifications for product development. Furthermore, the following skills would be a plus for a successful candidate in this role Proficiency in programming languages, MATLAB, Python, C etc. Knowledge of light transport (coherent and/or diffuse) in biological tissue. Flexible, collaborative and willing to work in cross-functional fast-paced technology development.

Knowledge of optical system design for wearable sensing applications including lens design, integration of electro-optical components etc. Experience with building bench-top optical sensor prototypes including metrology and characterization. Experience working with cross-functional teams (mechanical/electrical engineering) on technology development of optical sensors. Excellent written and verbal communication skills, excellent documentation skills. BS with 3+ years industry experience or MS/PhD in Biomedical Engineering, Optical Engineering, or related field.

Strong optical simulation skills using commercial ray-tracing packages. Experience with modeling/simulating light transport in biological tissue. Proven experience in designing optical systems for bio-sensing/imaging applications. PhD in Biomedical or Optical Engineering.