Senior Embedded Firmware Engineer – STM32, HIL, Field

Allen Control Systems; Mountain View (CA); On-site; USD 140,000 - 190,000; Full time

Benefits offered by this job

Competitive salary

ACS Equity Package

Health, Dental, Vision Insurance

Paid Time Off

Job summary

Allen Control Systems is seeking a Firmware Engineer to own low-level embedded software for autonomous aircraft. This role is a deep individual contributor position, requiring architecture and design decisions from day one, including bare-metal vs RTOS tradeoffs and HIL testing infrastructure.

You will develop STM32-based firmware, write drivers for sensors and peripherals (CAN, I2C, UART, Ethernet), and define deployment strategies for fielded systems with bootloaders and OTA updates.

Qualifications

• 4+ years of embedded firmware development experience
• Fluency in C and C++
• Deep understanding of bare-metal and RTOS architectures
• Knowledge of CAN, I2C, UART and Ethernet protocols
• Bootloader design and firmware deployment for fielded systems
• Experience setting up hardware-in-the-loop testing environments

Responsibilities

• Own the architecture and implementation of time- and safety-critical embedded firmware on STM32-based platforms; evaluate existing firmware ecosystems and decide what to carry forward vs. redesign.
• Write drivers for sensors and peripherals; configure CAN, I2C, UART, and Ethernet.
• Determine and implement deployment strategies for fielded aircraft, including bootloader design and OTA or field updates.
• Set up and maintain hardware-in-the-loop testing infrastructure; document architectural decisions and tradeoffs clearly.

Skills

C/C++

Embedded firmware

Bare-metal/RTOS

CAN I2C UART Ethernet

STM32

HIL testing

Tools

STM32 toolchains

Job description

Allen Control Systems is seeking a Firmware Engineer to own low-level embedded software for autonomous aircraft. This role is a deep individual contributor position, requiring architecture and design decisions from day one, including bare-metal vs RTOS tradeoffs and HIL testing infrastructure.

You will develop STM32-based firmware, write drivers for sensors and peripherals (CAN, I2C, UART, Ethernet), and define deployment strategies for fielded systems with bootloaders and OTA updates.