Embedded Systems Engineer | Wireless IoT & Low-Power Design | ZigBee, SIG Mesh & Edge IoT Gateways. I build embedded systems for wireless IoT devices and edge automation platforms — focusing on low-power design, Zigbee/SIG Mesh communication, and scalable gateway architectures. My experience spans full product lifecycles: firmware architecture → protocol integration → device interoperability → deployment validation. I’ve worked with battery-operated end devices, multiprotocol lighting systems, and a Linux-based Zigbee gateway bridging cloud/app control with local mesh networks. Core Technical Strengths: Low-Power Wireless Devices: Sleepy-end-device architectures, EM2/Deep Sleep, interrupt-driven input frameworks, adaptive polling. Mesh Networking Protocols: Zigbee (ZCL, EZSP/NCP, OTA, IAS), Bluetooth SIG Mesh (Models, Profiles). Edge IoT Gateways: MQTT/cJSON messaging layers, SQLite-backed device discovery, thread-safe protocol dispatchers, OTA delivery pipelines. Custom IoT Protocol Design: Manufacturer-specific Zigbee command frameworks and cloud–device MQTT communication layers for interoperable automation systems. Hands-on Platforms: Silicon Labs EFR32MG21 (Cortex-M33), Simplicity Studio ecosystem (ZAP, EZSP/NCP, OTA, Network Analyzer), hardware peripheral drivers (IADC, LETIMER, LDMA, Power Manager, GPIO, CMSIS etc.), Telink TLSR8258 (SIG Mesh SDK), Raspberry Pi (Linux ARM64) I enjoy working at the intersection of wireless protocol stacks, embedded firmware, and edge networking, where design decisions directly affect power efficiency, system reliability, and user experience. Always open to collaborating on IoT products, embedded platforms, and scalable home/industrial automation systems.