Job Description: 1. Responsible for the design and development of hardware of photovoltaic and energy storage products; 2. Responsible for topology analysis and design of photovoltaic and energy storage products, and selection of key components; 3. Responsible for prototype design and commissioning; 4. Responsible for product transformation and related documentation; 5. Responsible for technical service and technical support; Job requirements: 1. Master degree or above, major in power electronics; 2.7 years or more relevant working experience; 3. Proficient in three-level, HERIC and other circuit topology; 4. Proficient in photovoltaic, energy storage and related industry standards, familiar with EMC, safety regulations, thermal design, reliability and other aspects of knowledge;