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SiPhox Health · 1 day ago

Principal Electrical Systems Engineer

Burlington, MA

Full-time

Onsite

Lead/Staff

SiPhox Health is transforming clinical diagnostics through innovative technology integration. They are seeking a Principal Electrical Systems Engineer to architect and design the electronics for their diagnostic instrument, ensuring system-level reliability and compliance with medical device standards.

Health CareHealth DiagnosticsMedical Device

No H1B

Responsibilities

Own the electrical architecture for the full diagnostic instrument, including:

Stepper and BLDC motor drivers

Pump and valve control

Linear actuators and gantry control

Camera and LED subsystem

Centrifuge motor with encoder feedback

Resistive heater and NTC sensing

SPI-connected photonic reader MCU

Power distribution and external PSU integration

Lead schematic design, PCB layout, component selection, and design documentation

Develop mixed-signal circuits for optical sensing, thermal control, motor control, and fluidic actuation

Ensure designs meet performance, safety, EMC, and reliability requirements for medical devices

Collaborate closely with firmware engineers (ESP32 and STM32) on HAL requirements, timing constraints, and motor-control behavior

Support real-time interfaces including SPI, UART, RS485, USB, and GPIO triggers

Validate hardware communication with the Linux SBC, reader subsystem, motion modules, and cartridge heater system

Architect and tune electronics for:

Multi-axis gantry (X, Y, Z)

Centrifuge with incremental encoder

Lift slider and drawer motor

Camera trigger and illumination control

Lead hardware bring-up, system debug, and cross-functional root-cause analysis for motion, thermal, and sensing issues

Own electrical risk analysis and contribute to FMEAs and hazard controls

Design for IEC 60601, IEC 61010, ISO 13485, and relevant diagnostic device standards

Implement electrical protections, safety interlocks, and fault-tolerant behavior

Drive EMC testing, mitigation, and design improvements

Work with suppliers, CM partners, and PCB fabrication houses

Design automated test fixtures and production validation tools

Improve yield, robustness, and cost efficiency as the platform scales

Qualification

Electromechanical systems designMotor control electronicsPCB design (Altium)Embedded hardware integrationEMC complianceAnalog signaling expertiseReal-time interfaces SPIReal-time interfaces USBReal-time interfaces UARTCross-functional debuggingMedical device experienceFluidic system electronics