Senior Electrical Engineer

Location: San Francisco

Department: Next Gen

Role Overview

As a Senior Electrical Engineer, you will drive electrical system architecture and circuit design for medical
devices spanning wearables to active implants. You will work across the full stack of low-power medical
electronics, from novel sensing modalities and sensor front-ends to wireless power and communication
systems, taking designs from concept through simulation, silicon, and board bring-up to a validated product.
You bring a robust core skillset in electrical engineering, specialist know-how in one or more related areas, and
enjoy working across the boundaries between hardware, firmware, mechanical, and software.

Key Responsibilities

• System Architecture: Architect and design EE systems integrating compute, sensing, power, and
  communications within tightly power- and space-constrained form factors, from body-worn wearables to
  implants.
• Sensing & Sensors: Explore, evaluate, and prototype novel sensing modalities and sensor interfaces,
  translating concepts into product-oriented designs.
  
• Electrical & Circuit Design: Design and characterize analog/mixed-signal circuits for wearable and
  implantable applications, including simulation, statistical validation, and bench characterization.
• Wireless Power: Develop custom wireless power transfer systems with a focus on high end-to-end
  efficiency, robust performance across varying coupling conditions, and modern control methods.
• Electromagnetic Simulation: Perform EM simulations to design and optimize wireless power coils and
  communication antennas (BLE, Wi-Fi, UWB, etc.), and correlate simulation results with measurements.
  
• Mixed-Signal ASIC Development: Contribute to ASIC architecture definition, develop new
  analog/mixed-signal modules and IP, run block- and system-level simulations, and lead post-silicon
  validation.
• PCBA Development: Develop and own PCBAs from schematic capture and layout through bring-up,
  debug, and design iteration.

Qualifications & Skills

• Master's or PhD in Electrical Engineering or related field. Equivalent experience and exceptional
  capabilities will be considered.
• Specialist expertise in one or more of: mixed-signal ASIC development, wireless power systems, radios
  and antennas.
• Experience in analog/mixed-signal circuit design experience (simulation, characterization, statistical
  validation).
• Experience developing systems with MCUs and FPGAs.
  
• Experience with RF/EM simulation tools and methods (e.g., Ansys HFSS, CST Studio Suite, Ansys
  Maxwell, or equivalent).
• Hands-on lab proficiency with instruments such as oscilloscopes, spectrum and vector network
  analyzers, impedance analyzers, and source measure units.
• Functional knowledge of C, Python, and Verilog.
• Comfortable working across hardware, firmware, mechanical, and software boundaries and
  collaborating with cross-functional device teams.