Senior Embedded Firmware Engineer

24 hours ago

New Delhi, India Datanetiix Solutions Inc. Full time

Description: Senior Embedded Firmware Engineer (IoT / STM32 / LoRa) Experience:9+ Years (Flexible for strong profiles) Industry:IoT, Embedded Systems, Wireless Communication, Sensor Devices Role Overview We are seeking aworld-class Embedded Firmware Engineerto design, build, and optimize firmware for next-generation IoT sensor devices. The ideal candidate has deep experience inARM-based microcontrollers (STM32) ,low-power wireless communication (LoRa/xDot) , andscalable device firmware architecture . This role involves end-to-end ownership of embedded systems — from architecture to deployment. Key Responsibilities Firmware Development Architect, develop, and maintain embedded firmware inC/C++for ARM Cortex-M microcontrollers. Build robust firmware usingSTM32 HAL, LL drivers, CMSIS , and custom peripheral drivers. Develop reusable firmware libraries, bootloader components, and peripheral drivers. IoT & Wireless Connectivity Implement low-power wireless communication usingLoRa, LoRaWAN, Sub-GHz radios , or LPWAN stacks. Work with industrial IoT modules such asMultiTech xDot (MTXDOT-WW1-B15)or equivalent. Optimize packet structures, RF settings, payload formats, timing, and reliability. System-Level Engineering Analyze and optimize memory using .map, .elf, .list, .cyclo reports. Perform system performance tuning (interrupt latency, power modes, sleep cycles). Develop robust error handling, failsafe mechanisms, watchdogs, and OTA update logic (if applicable). Debugging & Validation Use advanced debugging tools:ST-Link, JTAG/SWD, Logic Analyzers, Oscilloscopes . Diagnose hard faults, stack overflows, and memory corruption. Validate firmware with stress tests, regression testing, and diagnostic tools. Build & Tooling Work withMakefile , GCC ARM toolchain, CMake, or embedded CI pipelines. Implement CI/CD for firmware builds and automated testing workflows. Collaboration Work closely with cross-functional teams (hardware, cloud, mobile, QA). Support cloud integration ( MQTT, AWS IoT, Azure IoT, custom TCP/UDP protocols ). Participate in architecture design, documentation, and technical reviews. Essential Qualifications Expert knowledge ofEmbedded C/C++ Strong experience withSTM32 (any L0/L1/L4/F4/C0 series) Deep understanding ofARM Cortex-Marchitecture Experienced inperipherals → I2C, SPI, UART, ADC, DMA, TIM, GPIO Experience withlow-power designfor battery-operated devices Hands-on withLoRa / LoRaWAN / RF systems Strong debugging skills: SWD, JTAG, Fault analyzers Ability to derive insights from compiler artifacts: .elf, .map, .list, .o, .d, .su, .cyclo Preferred Skills (Global Standard) MultiTech xDot / Conduit device experience Exposure toRTOS(FreeRTOS, Zephyr) Python scripting for automation Cloud IoT integrations (AWS / Azure / GCP) Experience withsecure boot , crypto libraries, firmware signing Experience with test automation tools Knowledge of FCC/CE RF compliance requirements

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