Five years of C++/C development experience, two years of HTML5 and JavaScript development experience. Ability to use oscilloscopes and logic analyzers to test hardware, familiar with and proficient in the design of commonly used standard circuits; Familiar with theoretical knowledge of control algorithm design for three-phase grid connected inverters; Having the ability to analyze and handle driver issues such as microcontrollers and ARM, as well as development experience; Having experience in developing OpenHarmony operating systems, familiar with and familiar with Harmony related frameworks; Familiar with the latest Camera framework for Android; The main technology stacks used include C and C++, Arkts; Strong technical research ability, familiar with communication protocols such as UART, CAN, 1553 buses, etc;