Firmware Developer

Job Summary Seeking a LoRa Firmware Developer to design and optimize firmware for battery-powered IoT devices using LoRa/LoRaWAN. In this role, you will focus on low-power operation, RF communication, and developing scripts to support manufacturing and production testing. What You’ll do:

• Develop low-level firmware/software for microcontrollers, create reusable device drivers, integrate system-level features and architect changes to support an ever-growing codebase
• Quickly debug and troubleshoot issues that span the electrical, firmware, and software boundaries
• Review schematics with the electrical engineering team

• Develop embedded C/C++ code for LoRa devices.
• Integrate RTOS (e.g., FreeRTOS) and relevant IoT protocols.
• Develop low-level firmware/software for microcontrollers, create reusable device drivers, integrate system-level features and architect changes to support an ever-growing codebase

• Work with hardware teams to define system architecture.
• Optimize ARM cores for minimal power consumption and robust performance.
• Monitor real-world performance and power usage.

• Implement and refine LoRa/LoRaWAN stack features.
• Incorporate other communication protocols (BLE, Wi-Fi, etc.) as needed.

• Use JTAG, SWD, Logic Analyzers, oscilloscopes, and other tools for troubleshooting.
• Conduct unit and integration tests to ensure functionality.

• Develop scripts to automate device programming and calibration.
• Support production teams with troubleshooting and process optimization.

• Maintain concise technical documentation.
• Coordinate with cross-functional teams (hardware, QA, operations).

• Bachelor’s or Master’s in Electrical Engineering, Computer Engineering, Computer Science, or related field.
• 3+ years of embedded firmware experience, particularly with IoT or wireless systems.
• Proficiency in C/C++ and familiarity with RTOS-based development.
• Experience with LoRa/LoRaWAN protocols and RF fundamentals.
• Skilled in ARM core optimization for battery-powered devices.
• Comfortable using Git for version control and JTAG for debugging.
• Ability to create scripts for automated testing and production flows.

• Familiarity with additional wireless tech (NB-IoT, Wi-Fi, Bluetooth).
• Knowledge of IoT security (encryption, secure boot).
• Familiarity with peripherals such as USB, SPI, MIPI CSI/DSI, I2C, UART, and GPIO.
• Experience with communication protocols such as USB, TCP/IP, Ethernet, Bluetooth, and 802.11.
• Experience with field tests and network performance tuning.
• 3+ years of full software development life cycle, including coding standards, code reviews, source control management, build processes, testing, and operations experience

• Competitive salary and benefits.
• Professional growth opportunities.
• Collaborative, innovative work environment.
• Flexible work arrangements (office, hybrid, or remote).