Senior Firmware Engineer - ESC

Arxlight; Oakland (CA); On-site; USD 90,000 - 120,000; Full time

Benefits offered by this job

Competitive compensation and benefits

Collaborative environment

Room for technical growth

Job summary

Arxlight is seeking a Firmware Engineer in Oakland, California, to design and maintain firmware for STM32 microcontrollers in next-generation drone products. You will develop algorithms for motor control and integrate firmware with hardware designs. The role requires strong experience in embedded C/C++, along with debugging skills using tools like JTAG. We offer competitive compensation, opportunities for technical growth, and a collaborative work environment.

Qualifications

• Bachelor’s degree or equivalent experience in related field.
• Experience with AC/BLDC motor control algorithms.
• Strong experience in firmware development for STM32 microcontrollers.

Responsibilities

• Design and maintain firmware for STM32 microcontrollers.
• Implement and debug low-level drivers for various interfaces.
• Develop and optimize firmware in C/C++ for performance.

Skills

Firmware development

Motor control algorithms

Embedded C/C++

Low-level driver implementation

Education

Bachelor’s degree in Electrical Engineering or related field

Tools

STM32 microcontrollers

Git

JTAG/SWD

Job description

Company Overview
We are a rapidly growing technology startup focused on delivering next-generation drones for security and safety applications. Our company vertically integrates hardware and software to create leading edge capabilities in the UAV space, with a focus on saving lives.

We are looking for a Firmware Engineer to design, develop, and maintain embedded firmware for products based on STM32 microcontrollers. You will work close to the hardware, implementing low-level drivers, real-time functionality, and reliable embedded systems used in production devices.

Responsibilities

• Design, develop, and maintain firmware for STM32 microcontrollers

• Develop motor controller/ESC algorithms for our various products

• Implement and debug low-level drivers (GPIO, UART, SPI, I2C, CAN, USB, ADC, timers, DMA)

• Develop firmware using C/C++ (bare-metal and/or RTOS environments)

• Work with STM32 HAL/LL, CMSIS, and vendor toolchains

• Integrate firmware with hardware designs and collaborate closely with hardware engineers

• Debug and troubleshoot issues using tools such as JTAG/SWD, logic analyzers, oscilloscopes

• Optimize firmware for performance, memory usage, and power consumption

• Participate in code reviews and follow best practices for embedded software development

• Write and maintain technical documentation

• Support manufacturing, testing, and field issues as needed

Required Qualifications

• Bachelor’s degree in Electrical Engineering, Computer Engineering, Computer Science, or equivalent experience

• Experience with AC/BLDC motor control algorithms

• Strong experience developing firmware for STM32 microcontrollers

• Proficiency in embedded C/C++

• Solid understanding of microcontroller architectures, peripherals, and datasheets

• Experience with bare-metal development and/or RTOS (FreeRTOS or similar)

• Familiarity with debugging embedded systems using JTAG/SWD

• Experience using Git or other version control systems

Preferred Qualifications

• Experience with FreeRTOS or other real-time operating systems

• Knowledge of low-power design techniques

• Experience with bootloaders and firmware update mechanisms

• Familiarity with communication protocols (CAN, Ethernet, USB)

• Experience bringing up new hardware revisions

• Exposure to automated testing or CI for embedded systems

Nice to Have

• Experience with other MCU families (NXP, Nordic, Microchip, TI)

• Basic understanding of hardware schematics

• Experience with safety-critical or regulated products

• Knowledge of embedded security concepts (secure boot, firmware signing)

What We Offer

• Opportunity to work on real-world embedded products

• Collaborative environment with hardware and systems engineers

• Competitive compensation and benefits

• Room for technical growth and ownership