1. Responsible for the operation, maintenance, and troubleshooting of video conferencing systems such as Polycom and Huawei Zhizhen. 2. Responsible for the operation, maintenance, and troubleshooting of audio and video systems. 3. Responsible for the daily operation and maintenance of UPS systems in the data center, including battery replacements. 4. Responsible for the daily operation and maintenance of printers, including troubleshooting. 5. Responsible for the VoIP and IP telephone systems from Avaya or equivalent manufacturers. 6. Responsible for the digital mobile radio systems from Motorola or equivalent manufacturers. 7. Responsible for optical fiber splicing work. 8. Responsible for daily desktop operation and maintenance tasks.

1. Possess extensive experience and skills in data center operations and maintenance. 2. Have solid experience and skills in enterprise communication systems; familiar with components of enterprise communication systems such as communication towers, shelters, DC power systems, base stations, core systems, etc.; experienced in daily operations of enterprise telecommunication system servers and terminals. 3. Possess extensive experience and skills in enterprise wireless communication systems; have a thorough knowledge of the principles and products of Motorola and other similar manufacturers' Digital Mobile Radio (DMR) technology; experienced in maintaining DMR base station hardware and terminal radios. 4. Have solid experience and skills in video and audio engineering systems, sound systems, video conferencing systems, large screen display systems, and video wall systems; have strong knowledge of the composition and integration of the aforementioned multimedia systems. 5. Possess extensive experience and skills with AVAYA IP telephone systems or equivalent manufacturers' products; familiar with planning, troubleshooting, and managing VoIP systems. 6. Have a certain level of English communication skills.