Software Engineer, Firmware

Harbinger Motors Inc.; Garden Grove (CA); On-site; USD 130,000 - 160,000; Full time

Benefits offered by this job

Stock options

401k retirement plan

Annual vacation bonus

Wellness benefits

Cell phone stipend

Complimentary meals

Job summary

Harbinger Motors Inc. is seeking a skilled Software Engineer, Firmware to design and implement bare-metal and RTOS-based firmware for advanced EV motor control systems.

You0 will push hardware to its limits, achieving nanosecond-level determinism, safety, and efficiency in powertrains. You will work across hardware, software, and power electronics teams, optimize BSPs and drivers, and develop complex control algorithms including high-frequency FOC, while maintaining clear documentation and

Qualifications

• Bachelor’s degree in Electrical Engineering, Computer Engineering, or closely related field.
• 3+ years of embedded firmware development experience.
• Strong proficiency in C/C++ for resource-constrained embedded systems.
• Hands-on experience with ARM Cortex‑M microcontrollers or equivalent.
• Solid understanding of motor control algorithms, DSP, control theory, and PID tuning.
• Familiarity with CAN, SPI, I2C, UART interfaces.
• Proficiency with oscilloscopes, logic analyzers, and debuggers.

Responsibilities

• Design, implement, and maintain highly deterministic embedded firmware for EV motor control systems (bare-metal/RTOS).
• Configure and optimize BSPs and write low-level hardware drivers.
• Develop and tune control algorithms including high-frequency FOC.
• Optimize CPU efficiency, reduce interrupt latency, manage memory footprint.
• Perform rigorous testing and validation using real-time simulation and HIL environments.
• Collaborate with hardware, software, and power electronics teams for integration.
• Create and maintain thorough firmware documentation.

Skills

C/C++ embedded

ARM Cortex-M

DSP

PID tuning

CAN SPI I2C UART

Debugging tools

Education

Bachelor’s degree in Electrical/Computer Engineering

Tools

RTOS

Bare-metal firmware

GCC/IDE tools

Job description

Harbinger is an American commercial electric vehicle (EV) company on a mission to transform an industry starving for innovation. Harbinger’s best-in-class team of EV, battery, and drivetrain experts have pooled their deep experience to bring a first-of-its-kind EV platform to support the growing demand for medium-duty EVs and Hybrids. Harbinger: Familiar Form, Revolutionary Foundation.

About the Role

At Harbinger, we are redefining the performance of electric vehicles. We are seeking a highly skilled Software Engineer, Firmwareto 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.

What You’ll Do

Firmware Architecture & Development: Design, implement, and maintain highly deterministic embedded firmware for advanced EV motor control systems operating in bare-metal and RTOS environments.

BSP & Driver Configuration: Configure and optimize vendor Board Support Packages (BSPs) and write low-level hardware drivers to ensure optimal performance of application software.

Algorithm Implementation: Deploy, tune, and optimize complex control algorithms, including high-frequency Field-Oriented Control (FOC).

System Optimization: Relentlessly enhance CPU efficiency, reduce interrupt latency, optimize memory footprints, and ensure the system meets strict performance and safety goals.

Testing & Validation: Perform rigorous testing, debugging, and validation using real-time simulation and Hardware-in-the-Loop (HIL) environments.

Cross-Functional Integration: Work closely with hardware, application software, and power electronics teams to seamlessly integrate firmware with the broader motor control system.

Documentation: Create and maintain clean, comprehensive documentation covering firmware design, architecture, and testing methodologies.

Minimum Qualifications

Education: Bachelor’s degree in Electrical Engineering, Computer Engineering, or a closely related technical field.

Experience: 3+ years of professional experience in embedded firmware development.

Language Proficiency: Strong proficiency in C/C++ specifically tailored for resource-constrained embedded systems.

Hardware Experience: Hands‑on experience developing for ARM Cortex‑M microcontrollers or equivalent embedded platforms.

Domain Knowledge: Solid foundational understanding of motor control algorithms, digital signal processing (DSP), control theory, and PID tuning.

Communication Protocols: Familiarity with standard embedded communication interfaces (CAN, SPI, I2C, UART).

Debugging Skills: Hands‑on proficiency with standard lab tools, including oscilloscopes, logic analyzers, and debuggers.

Preferred Qualifications

Advanced Degree: Master’s degree in Electrical/Computer Engineering with a focus on control systems.

Industry Experience: Direct experience developing firmware for electric vehicle (EV) powertrains or automotive motor controls.

Advanced Motor Controls: Hands‑on experience implementing sensorless control techniques.

Complex Peripherals: Deep knowledge of complex timer units and cross-triggering peripherals, such as eTPU and GTM.

Advanced Validation: Proven experience setting up, maintaining, and running Hardware-in-the-Loop (HIL) testing environments.

• Early‑stage Stock Options
• Robust Retirement Savings (401k, HSA, FSA)
• Annual Vacation Bonus
• Wellness & Fertility Benefits
• Cell Phone Stipend
• Complimentary Meals & Stocked Kitchens

$130,000 - $160,000 USD

Harbinger is an equal opportunity employer and complies with all applicable federal, state, and local fair employment practices laws. All qualified applicants will receive consideration for employment without regard to race, color, religion, national origin, ancestry, sex, sexual orientation, gender, gender expression, gender identity, genetic information or characteristics, physical or mental disability, marital/domestic partner status, age, military/veteran status, medical condition, or any other characteristic protected by law.

Harbinger is committed to ensuring that our hiring process is accessible for persons with disabilities. If you have a disability or limitation, such as those covered by the Americans with Disabilities Act, that requires accommodations to assist you in the search and application process, please email us at [e-mail].