Hesham E.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.

RF design engineer for IoT products. A lot of experience designing from concept to manufacturing. We also debug existing design issues with a specialty in RF TIS/TRP compliance issues. My team is also capable build embedded firmware for STM32xx series processors. Hardware Design - Complete IoT designs: Concept, schematics, pcb layout, component selection, and enclosure design) - Partial IoT designs: Antenna matching, Radio, Control, external Interfaces, and Sensor - MCU’s : STM32 and ESP - Wireless modules: Quectel, SIMCOM, Sierra Wireless, Telit, and u-blox - BLE: Nordic nRF5xxxx, STM32WB, and BlueNRG-2 - In-house Product Prototyping as well as preparing for 3rd party manufacturing - In-house RF equipment for pre- FCC, TIS/TRP emissions testing Software Design Programming Languages/ Technologies - Embedded Cortex M0, M3, M4 - FreeRTOS - Technical Documentation - Architecture Design - Change Management JIRA, SCRUM, git Programming Languages - Embedded C/C++ - C/C++/Win API/STL - embedded Linux - Operating systems: bare metal, FreeRTOS, Ubuntu, and Android PROTOCOLS /STANDARDS - TCP/IP - Modbus RTU - BLE 5.x - 3GPP 5G NR, LTE, UMTS, and GSM/GPRS - 3GPP MAC/RRC/NAS… - 802.xx - SSH - MQTT - SSL/TLS - HTTP/HTTPS - My SQL INTERFACES - I2C - UART - Ethernet - USB - SPI - GPIO - RS232/RS485 - One wire interface Development Tools - Eclipse - IAR for ARM 7.4/AVR 5.4 - Mobile network simulators, - Spectrum and Network Analyzers - Qualcomm QXDM - JTAG - ST-link