# Senior Firmware Engineer - ESC - Company: [Arxlight Ai]() - Location: Oakland - Team: Engineering - Employment type: Full Time - Salary: $120K – $180K - Posted: April 22, 2026 ## 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 ## Apply [Apply on Arxlight Ai]() Canonical job page: