Alex V.Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Nov 5, 2026.

I am an engineer experienced in designing high-speed multi-layer PCBs and developing Linux-based embedded systems, or PCB design can be based on the MCU. Whether you're building a gateway, a custom industrial controller, complex SoC-based products, or IoT devices, I can handle it. * HARDWARE: Up to 8-layer PCB Design (Altium/KiCad), High-Speed Interfaces (SerDes, HDMI, DDR), and SoC/SoM Integration (Rockchip, i.MX8, Raspberry Pi CM), MCU Integration (STM32, ESP32, nRF, ...). * SOFTWARE: Linux Kernel/Drivers, Board Bring-up, and MCU programming (STM32, ESP32, nRF, ...). * CONNECTIVITY: Expert in industrial protocols (CAN, Modbus), Wireless (Wi-Fi, LoRaWAN), and IoT Clouds (AWS, ThingsBoard, Blynk). I provide full project management from initial schematic design to final hardware debugging and board bring-up. I'm available to exchange information daily, so let’s keep in touch. Tôi là người Việt Nam <3