1．+3 years of experience with firmware development for AC low voltage VFD (variable frequency inverter);
3年以上交流低压变频器（变频器））开发工作经验；
2.strong background in embedded system, control algorithms and power electronic;
有较强的嵌入式系统、控制算法和电力电子方面的背景；
3.Experience with space vector control with sensor and sensorless for Induction motor and Permanent magnet motor;
具有感应电机和永磁电机带传感器和无传感器空间矢量控制的经验；
4.Know-how in motor control including speed, torque and positioning;
对电机控制，包括速度，转矩和定位等有一定了解；
5.Develop firmware in C or C++ language or similar;
会使用C/C++或相似语言开发固件；
6.Experience with serial interfaces as: SPI, I2C, UART and other;
熟悉串行接口，如SPI， I2C， UART等；
7.Experience with communication interfaces (e.g., CAN, Modbus, Ethernet..);
熟悉通信接口（如CAN， Modbus， Ethernet等）；
8.Experience with safety function and Class B;
具有安全功能和B级等相关经验；
9.Experience to develop firmware for auxiliary functions as: motor temperature protection, overload, overvoltage, over current, and so on;
有开发辅助功能固件的经验，如：电机温度保护，过载，过压，过流等；
10.Prepare technical reports and provide support for internal and external stakeholders;
准备技术报告，并为内部和外部利益相关者提供技术支持；
11.Create and Maintain detailed documentation for software architecture, code and user manual.
创建并维护软件架构、代码和用户手册的详细文档。