Senior Embedded Firmware Engineer - Cinema Lighting & Power

SmallHD; Cary (NC); On-site; USD 110,000 - 140,000; Full time

Benefits offered by this job

Health, dental, and vision insurance

401(k) with company match

Paid time off and holidays

Job summary

SmallHD is seeking an experienced Embedded Firmware Engineer III to develop firmware for professional battery, power, and LED lighting products. You will design and release production-quality firmware from concept through validation, collaborating with hardware, software, product management, and test teams.

You'll implement battery management, lighting-control protocols (DMX512, Art-Net, sACN), wireless provisioning, and secure MQTT connectivity on ARM Cortex-M platforms.

Qualifications

• Bachelor's degree in Electrical Engineering, Computer Engineering, Computer Science, or related field (or equivalent professional experience).
• 5+ years of embedded firmware development experience with commercial hardware products.
• Advanced programming experience using Embedded C.
• Strong experience developing firmware for ARM Cortex-M microcontrollers.
• Experience with real-time operating systems such as ThreadX or FreeRTOS.
• Experience with: Hardware bring-up, Embedded debugging, Device drivers, Communication protocols.
• Working knowledge of: Git, CMake, GNU Arm Embedded Toolchain, CI/CD practices.
• Ability to interpret electrical schematics and troubleshoot hardware/firmware interactions.
• Experience writing maintainable, well-documented production firmware.
• Strong analytical, problem-solving, communication, and collaboration skills.

Responsibilities

• Design, develop, test, document, and maintain embedded firmware for battery, power, and professional LED lighting products.
• Develop bootloader and application firmware for ARM Cortex-M microcontrollers.
• Create reusable embedded C libraries with appropriate unit tests and documentation.
• Develop production-ready embedded software throughout the entire product lifecycle.
• Perform board bring-up and on-target debugging.
• Troubleshoot firmware using schematics, oscilloscopes, logic analyzers, and JTAG/SWD debugging tools.
• Develop low-level device drivers and hardware interfaces.
• Implement battery-management functionality including SOC, SOH, coulomb counting, cell balancing, SBS.
• Develop firmware supporting professional lighting-control protocols (DMX512, RDM, CRMX, Art-Net, sACN).
• Bluetooth LE and Wi-Fi provisioning; secure MQTT cloud connectivity.
• Develop embedded communications (SMBus/I2C, UART, SPI, Modbus, TCP/UDP).
• Plan and execute structured verification and regression testing.
• Conduct battery lifecycle, thermal, and load testing.
• Develop Python tools for test automation, data collection, calibration, engineering analysis.
• Support firmware releases and manufacturing; assist regulatory testing; troubleshoot field issues.

Skills

Embedded C

ARM Cortex-M

RTOS (ThreadX/FreeRTOS)

Embedded debugging

Hardware bring-up

Device drivers

Communication protocols

Git

CMake

GNU Arm Embedded Toolchain

CI/CD practices

Education

Bachelor's degree in Electrical Engineering, Computer Engineering, Computer Science, or related field

Tools

Segger J-Link

J-Flash

Ozone

Doxygen

GUIX

GUIX Studio

Job description

SmallHD is seeking an experienced Embedded Firmware Engineer III to develop firmware for professional battery, power, and LED lighting products. You will design and release production-quality firmware from concept through validation, collaborating with hardware, software, product management, and test teams.

You'll implement battery management, lighting-control protocols (DMX512, Art-Net, sACN), wireless provisioning, and secure MQTT connectivity on ARM Cortex-M platforms.