Muhammad S.

𝗟𝗘𝗔𝗗 𝗘𝗠𝗕𝗘𝗗𝗗𝗘𝗗 𝗙𝗜𝗥𝗠𝗪𝗔𝗥𝗘 𝗘𝗡𝗚𝗜𝗡𝗘𝗘𝗥 | 𝗦𝗧𝗠𝟯𝟮 | 𝗘𝗠𝗕𝗘𝗗𝗗𝗘𝗗 𝗖/𝗖++ | 𝗕𝗠𝗦 | 𝗔𝗨𝗧𝗢𝗠𝗢𝗧𝗜𝗩𝗘 | 𝗔𝗨𝗧𝗢𝗦𝗔𝗥 | 𝗖𝗔𝗡 | 𝗙𝗥𝗘𝗘𝗥𝗧𝗢𝗦 | 𝗭𝗘𝗣𝗛𝗬𝗥 | 𝗜𝗼𝗧 I’m a 𝗟𝗲𝗮𝗱 𝗘𝗺𝗯𝗲𝗱𝗱𝗲𝗱 𝗙𝗶𝗿𝗺𝘄𝗮𝗿𝗲 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿 specializing in 𝗘𝗺𝗯𝗲𝗱𝗱𝗲𝗱 𝗖/𝗖++, 𝗦𝗧𝗠𝟯𝟮, 𝗔𝗥𝗠 𝗖𝗼𝗿𝘁𝗲𝘅-𝗠, 𝗕𝗮𝘁𝘁𝗲𝗿𝘆 𝗠𝗮𝗻𝗮𝗴𝗲𝗺𝗲𝗻𝘁 𝗦𝘆𝘀𝘁𝗲𝗺𝘀, 𝗔𝘂𝘁𝗼𝗺𝗼𝘁𝗶𝘃𝗲 𝗘𝗖𝗨 𝗙𝗶𝗿𝗺𝘄𝗮𝗿𝗲, 𝗔𝗨𝗧𝗢𝗦𝗔𝗥, 𝗖𝗔𝗡/𝗖𝗔𝗡-𝗙𝗗, 𝗟𝗜𝗡, 𝗨𝗗𝗦, 𝗖𝗔𝗡𝗼𝗽𝗲𝗻, 𝗙𝗿𝗲𝗲𝗥𝗧𝗢𝗦, 𝗭𝗲𝗽𝗵𝘆𝗿, 𝗕𝗟𝗘, 𝗖𝗲𝗹𝗹𝘂𝗹𝗮𝗿 𝗜𝗼𝗧, 𝗠𝗤𝗧𝗧, 𝗔𝗪𝗦 𝗜𝗼𝗧 and 𝗛𝗮𝗿𝗱𝘄𝗮𝗿𝗲 𝗕𝗿𝗶𝗻𝗴-𝗨𝗽. I build 𝗽𝗿𝗼𝗱𝘂𝗰𝘁𝗶𝗼𝗻-𝗴𝗿𝗮𝗱𝗲 𝗲𝗺𝗯𝗲𝗱𝗱𝗲𝗱 𝗳𝗶𝗿𝗺𝘄𝗮𝗿𝗲 for automotive, EV/BMS, industrial, IoT, BLE and connected-device products—from low-level drivers and MCU firmware to RTOS applications, communication protocols, diagnostics, bootloaders, OTA/FOTA, testing, debugging and production stabilization. 🔋 𝗕𝗠𝗦 / 𝗘𝗩 / 𝗕𝗔𝗧𝗧𝗘𝗥𝗬 • 𝗕𝗮𝘁𝘁𝗲𝗿𝘆 𝗠𝗮𝗻𝗮𝗴𝗲𝗺𝗲𝗻𝘁 𝗦𝘆𝘀𝘁𝗲𝗺 (𝗕𝗠𝗦) firmware for EV and ESS • STM32 BMS firmware and battery AFE integration • BQ79616 register-level SPI driver development • Cell voltage, current and temperature monitoring • Cell balancing and battery protection • SOC / SOH / SOP monitoring • Contactor / relay / precharge control • BMS CAN communication, diagnostics and testing 🚗 𝗔𝗨𝗧𝗢𝗠𝗢𝗧𝗜𝗩𝗘 / 𝗔𝗨𝗧𝗢𝗦𝗔𝗥 / 𝗘𝗖𝗨 • Automotive embedded software and ECU firmware • 𝗔𝗨𝗧𝗢𝗦𝗔𝗥 𝗖𝗹𝗮𝘀𝘀𝗶𝗰: SWC, RTE, MCAL, BSW and AUTOSAR OS • Embedded C / MISRA-C • CAN / CAN-FD / LIN / UDS / ISO 14229 / CANopen • Automotive diagnostics and ECU communication • ECU integration, testing and validation • Automotive bootloader / OTA / FOTA • Requirements, architecture, implementation and verification 🔧 𝗘𝗠𝗕𝗘𝗗𝗗𝗘𝗗 𝗙𝗜𝗥𝗠𝗪𝗔𝗥𝗘 / 𝗦𝗧𝗠𝟯𝟮 • STM32F4 / STM32G4 / STM32L4 • ARM Cortex-M / Microcontroller Programming • Embedded C / C++ • Bare-metal / FreeRTOS / Zephyr • Firmware Architecture / BSP / HAL • Device and peripheral drivers • SPI / I2C / UART / GPIO / ADC / PWM • DMA / interrupts / timers • Flash / EEPROM / NVM / bootloaders • Hardware / PCB / Board Bring-Up • Firmware debugging, optimization and bug fixing • J-Link / GDB / RTT / JTAG / SWD 📡 𝗜𝗢𝗧 / 𝗖𝗘𝗟𝗟𝗨𝗟𝗔𝗥 / 𝗖𝗟𝗢𝗨𝗗 • Embedded IoT / Cellular IoT / connected-device firmware • LTE-M / NB-IoT • Quectel / Telit / AT-command integration • MQTT / MQTT-TLS • AWS IoT Core / Fleet Provisioning • GNSS / GPS / u-blox / UBX • Protobuf / nanopb • Device telemetry / remote monitoring • Low-power / deep-sleep firmware • Power optimization • OTA / FOTA / remote firmware updates 🦾 𝗕𝗟𝗘 / 𝗡𝗢𝗥𝗗𝗜𝗖 / 𝗭𝗘𝗣𝗛𝗬𝗥 • nRF52832 / nRF52840 / nRF5340 / nRF54L15 • Bluetooth Low Energy (BLE) / GATT • Zephyr RTOS / nRF Connect SDK • MCUboot / DFU / BLE OTA • Wearable and sensor firmware • IMU / PMIC / fuel-gauge / ADC integration • Bare-metal → Zephyr migration • Low-power embedded applications 🛡️ 𝗙𝗨𝗡𝗖𝗧𝗜𝗢𝗡𝗔𝗟 𝗦𝗔𝗙𝗘𝗧𝗬 / 𝗧𝗘𝗦𝗧𝗜𝗡𝗚 • ISO 26262 / ASIL-A / ASIL-B • IEC 61508 / ISO 13849 / IEC 62304 • UL 60730 / UL 1998 • MISRA-C • Unit / integration / system testing • Software verification and validation • Static analysis / safety mechanisms / watchdogs • Tessy / Axivion • CANoe / PCAN Explorer • FMEA / DFMEA / hazard analysis / risk analysis • Requirements traceability / design reviews • Compliance support / audit preparation / technical gap analysis 📐 𝗙𝗜𝗥𝗠𝗪𝗔𝗥𝗘 𝗔𝗥𝗖𝗛𝗜𝗧𝗘𝗖𝗧𝗨𝗥𝗘 / 𝗦𝗢𝗙𝗧𝗪𝗔𝗥𝗘 𝗗𝗘𝗦𝗜𝗚𝗡 • Embedded Software Architecture • Firmware Architecture & Design • System Architecture • Software Requirements • Technical Specifications • Detailed Design • Modular firmware design • Driver / middleware / application layers • State machines / event-driven firmware • Error handling / fault management • Code Review / Refactoring • Technical Documentation • Root Cause Analysis 🔄 𝗦𝗢𝗙𝗧𝗪𝗔𝗥𝗘 𝗗𝗘𝗩𝗘𝗟𝗢𝗣𝗠𝗘𝗡𝗧 / 𝗖𝗜/𝗖𝗗 • Git / GitLab / Version Control • Branching / Code Review • CI/CD for Embedded Software • Automated Builds / Automated Testing • Firmware Release Management • V-Model / Agile / Scrum • Requirements Traceability • Verification & Validation • Defect Analysis / Root Cause Analysis • Firmware Porting / MCU Migration • Legacy Firmware Modernization • Production Issue Resolution 🛠️ 𝗧𝗢𝗢𝗟𝗦 / 𝗣𝗟𝗔𝗧𝗙𝗢𝗥𝗠𝗦 𝗠𝗖𝗨𝗦: STM32 · NXP S32K144/S32K146 · Nordic nRF52/nRF53/nRF54 · ESP32 · SAMD21 𝗥𝗧𝗢𝗦: FreeRTOS · Zephyr · AUTOSAR OS · µC/OS-II · Bare-metal 𝗣𝗥𝗢𝗧𝗢𝗖𝗢𝗟𝗦: CAN · CAN-FD · CANopen · LIN · UDS · SPI · I2C · UART · BLE · MQTT · TCP/IP 𝗧𝗢𝗢𝗟𝗦: STM32CubeIDE · STM32CubeMX · CANoe · PCAN Explorer · J-Link · GDB · RTT · DaVinci · winIDEA · Enterprise Architect · Tessy · Axivion · Git · GitLab I can help with 𝗻𝗲𝘄 𝗳𝗶𝗿𝗺𝘄𝗮𝗿𝗲 𝗱𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁, 𝗲𝘅𝗶𝘀𝘁𝗶𝗻𝗴 𝗰𝗼𝗱𝗲𝗯𝗮𝘀𝗲𝘀, 𝗳𝗶𝗿𝗺𝘄𝗮𝗿𝗲 𝗯𝘂𝗴 𝗳𝗶𝘅𝗶𝗻𝗴, 𝗠𝗖𝗨 𝗽𝗼𝗿𝘁𝗶𝗻𝗴 etc.