Muhammad R.

I've developed and deployed 20+ production embedded & IoT products across healthcare, agriculture, wearables, security, automotive, and industrial devices. I design connected products end-to-end including firmware, multi-layer PCB, enclosure, and IoT dashboards, from concept to MVP to mass production.

As a Senior Embedded Systems Engineer with a background in Electrical Engineering, I help startups, entrepreneurs, and engineering teams design, develop, and launch connected products and stay accountable for the result from the first schematic to the production line.

𝐖𝐇𝐀𝐓 𝐈 𝐎𝐅𝐅𝐄𝐑:
➛ Firmware Development: Secure, optimized C/C++ firmware for various Microcontrollers and SBCs.
➛ Hardware Development & Integration: Multi-layer PCB designs in Altium/KiCad with driver integration.
➛ Enclosure Design: 3D-printable prototypes through production-ready CAD.
➛ IoT Web & Mobile Dashboards + Cloud Integration: Web dashboards and mobile apps integrated with BLE/Wi-Fi/LoRa IoT devices.

𝐏𝐑𝐎𝐃𝐔𝐂𝐓𝐒 𝐈'𝐕𝐄 𝐒𝐇𝐈𝐏𝐏𝐄𝐃
• Frostmed: Vaccine Transport Cooler (ESP32) - safe transit with live temperature visibility. Mass production.
• SmartBolt: Smart Door Lock (nRF52840) - NFC tap-to-unlock, BLE app control, months on one battery.
• Palm: Smart Thermal Waste Bin (ESP32) - Firmware, PCB, App & cloud fleet management.
• NAPL: Groundwater Oil Filtration System (ESP32) - extracts oil from contaminated sites, solar-powered, unattended.
• LoRaWAN Smart Call Device: emergency call button that works where cellular and Wi-Fi don't.

𝐓𝐄𝐂𝐇𝐍𝐈𝐂𝐀𝐋 𝐄𝐗𝐏𝐄𝐑𝐓𝐈𝐒𝐄:

• MCUs & SBCs: ESP32, nRF51/52/53/91, STM32, PIC, Raspberry Pi, Jetson Nano, Linux-based edge devices

• Real-Time Operating Systems: FreeRTOS, Zephyr for deterministic, multi-threaded applications

• ARM Processors & SoCs: Cortex-M & Cortex-A - bare-metal & RTOS firmware, Linux kernel porting, board support and driver development

• Programming Languages: C, Embedded C, C++, MicroPython, Python, TinyML, Shell scripting, TCL

• PCB Design: Altium Designer, KiCad, EasyEDA - schematic capture, multi-layer layout, high-speed design, 3D modeling, and prototyping

• Networking & Communication Protocols: UART, SPI, I2C, CAN, Modbus, RS-485, BLE, MQTT, LoRaWAN, LoRa, HTTP/HTTPS, TCP/IP, WebSockets for sensor networks and cloud/device communication