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femtoAI

Senior Embedded Systems Engineer - Firmware

femtoAI, San Bruno, California, United States, 94066

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Overview Location: Preferably SF Bay Area or Remote

We’re building the next generation of AI-enabled embedded systems, and we need an embedded engineer to own the firmware that powers our system-on-chip (SoC) and reference designs. You’ll be working with a first-of-its-kind novel AI co-processor, and your designs will be deployed on thousands of end-devices that include femtoAI’s Sparse Processing Unit (SPU) chip.

Responsibilities

Develop firmware for the SPU’s RISC-V management processor, including datapath design and control between host MCU, accelerator, and peripheral interfaces.

Design and maintain file formats to deploy custom firmware and AI models from Flash.

Maintain CI systems for core firmware (Raspberry Pi, Github Actions).

Translate customer feedback from production systems into firmware enhancements.

Participate in PCB design reviews and work with hardware engineers and customers to bring up new designs.

Own your projects without micromanagement. Efficient communication of project status, blockers, and design decisions is key.

Requirements

Strong embedded C/C++ skills and experience writing firmware and drivers for microcontrollers.

Experience designing for extremely power constrained systems (1mW is a lot of power to us).

Experience and understanding of board-level communication protocols (I²S, I²C, SPI, PDM, UART, GPIO) and audio/control data streaming.

Comfort designing file formats or bootloading schemes for firmware and AI model loading.

Proficiency debugging with logic analyzers, debuggers, oscilloscopes, and other bring-up tools; ability to work across teams to find root causes across firmware, hardware, silicon, or AI models.

Proficiency with unit testing, integration testing, regression testing, and hardware-in-the-loop testing in Python.

Ability to independently own projects and deliver production-quality results; you will own code that directly faces customers.

Preferred Qualifications

Experience designing with RISC-V and ARM Cortex-M microcontrollers.

Experience with PCB design.

Experience contributing to open-source firmware or driver libraries.

Familiarity with AI inference, accelerators, and audio-based models.

Familiarity with Xilinx SoC tools.

Benefits

401(k)

Medical insurance

Vision insurance

Dental insurance

Commuter benefits

Disability insurance

Paid maternity leave

Paid paternity leave

Child care support

femtoAI is an equal opportunity employer committed to a diverse workforce and an inclusive working environment. We do not discriminate on the basis of race, ethnicity, religion, gender, gender identity, sexual orientation, age, marital status, veteran status, or disability status.

Seniority level

Mid-Senior level

Employment type

Full-time

Job function

Engineering

Industries

Semiconductor Manufacturing

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