Design, implement, and own large components of the embedded software stack across MCU sensors and embedded Linux gateways. Develop firmware, RTOS drivers, BSPs, kernel modules, connectivity (Ethernet/Wi‑Fi/LTE/HaLow/PoE), OTA/update systems, secure boot and certificate management, CI/CD for firmware, and reliability telemetry. Collaborate with hardware, QA, and cloud teams for integration, testing, and performance optimization.