Kumail A.

👨🏻‍💼 Hey, I am Kumail. I am an Embedded Systems and IoT Backend Engineer specializing in production-grade firmware, industrial communication stacks, and scalable device-to-cloud backends. IoT Solutions expert. Currently, I serve as a Firmware & Backend Engineer at Bit Byte, building complete end-to-end device architectures, and as an Energy Consultant at the LUMS Energy Institute, advising on smart metering and grid telemetry. From bare-metal bring-up and RTOS-based firmware to cloud ingestion pipelines and REST APIs, I handle the entire product lifecycle. ⚡ Embedded Firmware Engineer | Smart Energy | EV Systems | Industrial IoT 🔹 Embedded Systems Engineer delivering production-grade firmware for smart meters, EV systems, and industrial IoT devices 🔹 Strong background in RS485 (Modbus RTU), CAN Bus, BLE (Nordic nRF), and real-time embedded architectures 🔹 Built and deployed smart metering solutions, EV cradle control systems, and BMS communication stacks 🔹 Experienced in power electronics interfacing, sensor integration, and reliable field-device communication ⚡ Why Choose Me 🚀 I am simply way faster, cheaper, and have more hands-on experience since working with a startup, managing all the industry-level projects on my own. 🔋 Relevant Project Experience ⚙️ Smart Energy & Metering Systems - Developed firmware for smart energy meters using RS485 (Modbus RTU) for industrial communication - Integrated PZEM modules and multiple sensor interfaces - Designed structured data acquisition layers with fault handling - Implemented secure cloud communication pipelines 🔌 EV Cradle & Battery Systems - Worked on EV cradle firmware with CAN protocol integration - Developed communication layers for Battery Management Systems (BMS) - Implemented message parsing, diagnostics, and real-time state monitoring 📡 Nordic BLE Development - Developed BLE-based firmware using Nordic nRF series (nRF52) - Implemented custom GATT services and secure BLE communication - Optimized low-power modes for battery-operated devices - Integrated IMU (accelerometer & gyroscope) for motion-aware systems 🏠 Smart Home & Control Systems - Built intelligent lighting control systems - Developed PLC-based device control logic - Integrated touch display interfaces for AQI meters - Designed modular firmware architecture for scalability 🛠 Core Technical Expertise 🔹 Embedded Platforms ⚙️ ESP32 ⚙️ Nordic nRF52 Series ⚙️ STM32 (ARM Cortex-M) 📡 Communication Protocols 🔌 RS485 / Modbus RTU 🚗 CAN / CANopen 📶 BLE (Nordic SoftDevice) 🔄 UART, SPI, I2C 🧰 Tools & Development 💻 C / Embedded C 🛠 PlatformIO ⚡ FreeRTOS 🔗 Git / Version Control 📊 Oscilloscope & Logic Analyzer debugging 🔍 Hardware bring-up & board-level troubleshooting