Responsible for mailing system development of ChinaCache Big Billing System, "channel bandwidth transfer and test" module development and maintenance.

English teaching assistance, especially in TOEFL oral English, TOEFL writing，IELTS oral English, SAT vocabulary and quantitative section, off-class assistance, homework and exam assessment, correction and commentaries; Curriculum development for incoming students; Data management for incoming and current students in terms of course information statistics, including feedback from students and teachers, class hour records, further teaching plans for students.

Assistance of base station device detection and maintenance, especially for CDMA module;Assistance of operator in service station, familiarizing myself with wireless services of China Unicom.