Senior Zigbee / Thread Firmware Engineer at InnoPhase IoT — NeverHard

Senior Zigbee / Thread Firmware Engineer Role Overview We are looking for a Senior Firmware Engineer with deep expertise in Zigbee, Thread, and IEEE 802.15.4 wireless stacks. The candidate will focus on architecting, developing, and optimizing embedded wireless protocol stacks on resource-constrained platforms, ensuring compliance, performance, and reliability. Key Responsibilities Architect, design, and implement firmware solutions for Zigbee/Thread and IEEE 802.15.4-based products. Develop and optimize low-level drivers, MAC/PHY interfaces, and protocol stack layers. Debug and resolve wireless interoperability and certification issues using sniffers (Ubiqua, Wireshark, Perytons). Collaborate with hardware, QA, and product teams to ensure robust HW/SW co-design and regulatory compliance. Debug, analyze, and optimize power consumption and timing for battery-operated IoT devices. Support certification and compliance efforts for Zigbee/Thread-based products. Document software design, testing procedures, and release notes. Qualifications Bachelor’s or Master’s degree in Electronics, Computer Science, or related fields. 12+ years of experience in embedded firmware development. Strong programming skills in C / Embedded C; assembly or scripting (Python) a plus. Expertise in IEEE 802.15.4 MAC/PHY, Zigbee, and Thread protocol stacks. Experience with embedded RTOS (FreeRTOS, Zephyr, or Linux system programming). Proficiency in debug tools (JTAG, GDB, oscilloscopes, logic analyzers, sniffers). Strong knowledge of microcontrollers, transceivers, and RF system design basics. Hands‑on debugging and optimization for low‑power wireless systems. Familiarity with IoT frameworks and domains like home automation, security, and energy management. Excellent problem‑solving, communication, and cross‑functional collaboration skills. #J-18808-Ljbffr