Firmware Engineer (Bare-Metal / RTOS)

Harbinger Motors•Garden Grove, CA

2d•Onsite

About The Position

About the Role At Harbinger, we are redefining the performance of electric vehicles. We are seeking a highly skilled Firmware Engineer to design and implement the bare-metal and RTOS-based firmware that drives our advanced motor control systems. In this role, you will work at the intersection of hardware and software, squeezing every cycle out of the microcontroller to ensure nanosecond-level determinism, safety, and efficiency in our EV powertrains.

Requirements

Bachelor’s degree in Electrical Engineering, Computer Engineering, or a closely related technical field.
3+ years of professional experience in embedded firmware development.
Strong proficiency in C/C++ specifically tailored for resource-constrained embedded systems.
Hands-on experience developing for ARM Cortex-M microcontrollers or equivalent embedded platforms.
Solid foundational understanding of motor control algorithms, digital signal processing (DSP), control theory, and PID tuning.
Familiarity with standard embedded communication interfaces (CAN, SPI, I2C, UART).
Hands-on proficiency with standard lab tools, including oscilloscopes, logic analyzers, and debuggers.

Nice To Haves

Master’s degree in Electrical/Computer Engineering with a focus on control systems.
Direct experience developing firmware for electric vehicle (EV) powertrains or automotive motor controls.
Hands-on experience implementing sensorless control techniques.
Deep knowledge of complex timer units and cross-triggering peripherals, such as eTPU and GTM.
Proven experience setting up, maintaining, and running Hardware-in-the-Loop (HIL) testing environments.

Responsibilities

Design, implement, and maintain highly deterministic embedded firmware for advanced EV motor control systems operating in bare-metal and RTOS environments.
Configure and optimize vendor Board Support Packages (BSPs) and write low-level hardware drivers to ensure optimal performance of application software.
Deploy, tune, and optimize complex control algorithms, including high-frequency Field-Oriented Control (FOC).
Relentlessly enhance CPU efficiency, reduce interrupt latency, optimize memory footprints, and ensure the system meets strict performance and safety goals.
Perform rigorous testing, debugging, and validation using real-time simulation and Hardware-in-the-Loop (HIL) environments.
Work closely with hardware, application software, and power electronics teams to seamlessly integrate firmware with the broader motor control system.
Create and maintain clean, comprehensive documentation covering firmware design, architecture, and testing methodologies.