Embedded Firmware Engineer - Field Power Systems

Fruition Group US; San Francisco (CA); On-site; USD 162,000 - 198,000; Full time

Job summary

Fruition Group is partnering with a mission-driven hardware company to hire a Firmware Engineer. You will own embedded software for power electronics, including energy management, protection, and field reliability, writing low-level C and Rust on real hardware.

You will collaborate with electrical and hardware engineers, covering bare-metal and RTOS targets, with hands-on bring-up and debugging on the bench. Base salary is $180,000 plus equity.

Qualifications

• BS in Electrical/Computer Engineering, Computer Science, or equivalent demonstrated experience.
• 3+ years of firmware experience on hardware that has actually shipped and operated outside the lab.
• Practical, hands-on experience developing for both bare-metal targets and RTOS environments.
• Strong command of C/C++ in tightly constrained, real-time embedded environments.
• A track record of bringing up new hardware and debugging firmware issues on the bench, not just in simulation.
• Bonus points for real-world Rust experience on embedded hardware, a background in power electronics/motor control/battery management, familiarity with safety-critical or fault-tolerant systems and standards such as ISO 26262 or DO-178C, and comfort working with embedded comms protocols like CAN, SPI, I2C, and UART.

Responsibilities

• Develop and calibrate firmware for inverters, chargers, and battery packs for accurate energy routing.
• Design fault-detection logic with millisecond response times to protect equipment and personnel.
• Build thermal management logic to keep hardware within safe limits under varied loads.
• Collect and structure sensor data for logging, monitoring, and analysis.
• Create interfaces for operators to command and interact with the system in the field.
• Develop firmware for bare-metal and RTOS targets, balancing timing with limited compute memory.
• Collaborate with electrical/hardware teams during bring-up and bench debugging.

Skills

C/C++

RTOS

Bare-metal

Embedded debugging

Education

BS in Electrical/Computer Engineering or equivalent

Tools

CAN

SPI

I2C

UART

Job description

Fruition Group is partnering with a mission-driven hardware company to hire a Firmware Engineer. You will own embedded software for power electronics, including energy management, protection, and field reliability, writing low-level C and Rust on real hardware.

You will collaborate with electrical and hardware engineers, covering bare-metal and RTOS targets, with hands-on bring-up and debugging on the bench. Base salary is $180,000 plus equity.