AI Embedded Systems Engineer

+++ About SiPhox Health +++

SiPhox is bringing silicon-photonics diagnostics out of the central lab and into the home. We combine photonics, microfluidics, embedded systems, and semiconductor-grade manufacturing to quantify multiple biomarkers in minutes on a coffee-maker-sized device—aiming to build the first mass-market photonic blood analyzer to improve chronic disease care and increase human healthspan.

+++ The Opportunity +++

We’re hiring an Embedded AI Systems Engineer to architect and own the firmware layer that runs the instrument end-to-end: optics, fluidics, thermal control, sensing, motion, safety, and UX. You’ll define the real-time behaviors that make a complex, multi-domain system operate with medical-grade precision and reliability, partnering closely across EE, systems, assay, photonics, fluidics, mechanical, and software.

+++ What You’ll Do +++

• Build production embedded firmware: HALs, RT state machines, event-driven control, inter-module comms
• Convert system needs into clear, testable requirements and designs
• Implement/optimize machine vision + signal processing for electromechanical accuracy
• Develop bootloaders, calibration flows, diagnostics, and test/fixture firmware
• Lead bring-up → V&V → commercial release, integrating across sensors, motion, fluidics, photonics, and cloud/app
• Own reliability/safety: hazard analysis, FMEA inputs, fault-tolerant behaviors, verification automation + traceability
• Debug complex system issues; optimize timing, control loops, memory, and performance

+++ What We’re Looking For +++

Must-have

• Strong C/C++ for embedded (drivers, bring-up, real-time control)
• RTOS experience (e.g., FreeRTOS/Zephyr/ThreadX/VxWorks)
• Experience with common MCU families (STM32/ESP32/NXP/Nordic or similar)
• Motion/electromechanical control (steppers/servos, closed-loop control)
• Proven firmware architecture ownership + excellent cross-disciplinary debugging
• BS in EE/CE/CS (or equivalent), US work authorization, occasional travel (
• Top-tier work ethic, high standards, and ownership mindset

Nice-to-have

• Shipped complex electromechanical products end-to-end
• Fluidics / liquid handling automation experience
• Medical device firmware under ISO 13485 / IEC 62304 (Class C preferred) and risk mgmt per ISO 14971
• Calibration/DAQ, wireless connectivity, manufacturing fixtures
• Security/data integrity familiarity (21 CFR Part 11, HIPAA, IEC 80001)

+++ Why This Role Is Unique +++

You’ll build the firmware foundation for a new category: a consumer-deployed silicon-photonic diagnostic device that tightly couples optics, fluidics, motion, and sensing—and ships lab-quality biomarker measurement into millions of homes.

+++ Benefits +++

Generous equity compensation

Luxury gym membership

Healthcare, dental, 401k, etc.

Two 1-week company shutdowns (summer/July 4 and Christmas break) in addattion to PTO