Firmware Engineer

Job Description

What You Will Be Doing

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• Design, develop, and maintain embedded firmware for low-power wireless devices using C/C++ and FreeRTOS

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• Develop and optimize device drivers and board-support code for I²C, SPI, UART, ADC, DAC, sensors, displays, external memory, and wireless radios

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• Build reliable connectivity features using LoRaWAN, BLE, Wi-Fi, cellular, and NFC

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• Develop Wi-Fi provisioning, roaming, station and access-point functionality, and power-aware duty cycling

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• Implement secure bootloaders and over-the-air update workflows with diagnostics, logging, and fail-safe rollback

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• Collaborate with hardware, cloud, and mobile teams to deliver features from concept through deployment

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• Participate in code reviews and continuous-integration activities

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• Support board bring-up, design verification testing, manufacturing test scripts, calibration workflows, and field reliability

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• Profile battery life, performance, and RF behavior while developing telemetry for real-world product observability

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What You Will Need to Be Successful

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Essential Qualifications

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• Bachelor’s degree

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• At least 4 years of professional embedded firmware development experience

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• Strong programming skills in C and C++

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• Experience working with Git-based development workflows

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• Hands-on experience with embedded toolchains, HAL/LL libraries, SWD/GDB, and debugging tools such as J-Link or OpenOCD

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• Experience with at least two of the following communication technologies:

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• LoRaWAN

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• Wi-Fi

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• Bluetooth Low Energy

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• NFC

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• Cellular

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• Ability to use oscilloscopes and logic analyzers

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• Ability to read schematics and component datasheets

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• Clear communication, practical problem-solving skills, and strong product instincts

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Preferred Qualifications

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• Experience with ESP32 or STM32 microcontrollers

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• Knowledge of FreeRTOS tasks, queues, and timers

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• Experience with lwIP, mbedTLS, secure boot, or flash encryption

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• Familiarity with LoRaWAN regions and MAC behavior, BLE pairing and bonding, or Wi-Fi captive-portal provisioning

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• Experience developing factory-test automation or Python-based tools and fixtures

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• Experience modeling and optimizing power consumption for battery-operated products

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• Familiarity with e-paper or LCD user interfaces on resource-constrained microcontrollers, including LVGL

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• Experience with OTA services, device telemetry, or fleet-management platforms

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• Familiarity with quality and compliance environments in healthcare or life sciences, including audit-friendly logging and reporting

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