2005.7 -现在：香港中文大学，系统工程系，教授
2000.7-2005.6：香港中文大学，系统工程系，副教授
1998.9-2000.6：香港中文大学，系统工程系，助理教授
1992.7-2000.6：澳大利亚国立大学，计算机系，讲师
1991.4-1992.7：日本筑波大学，信息科学与电子学研究所，教员
1990.4-1991.3：日本筑波大学，信息科学与电子学研究所，研究学者

关键词搜索（Keyword Search in Databases）、图数据库（Graph Database）、图挖掘（Graph Mining）、社会网络（Social Networks）

1. “DBMS Power-Up: Support Advanced Large Graph-Based Applications”, RGC Earmarked Grant, HK$1,032,000, Jeffrey Xu Yu (项目主持人).
2. “Service Oriented e-Transaction Platform”, ITF project， David Cheung (项目主持人), Jeffrey Xu Yu (项目合作主持人) HK$9,200,000.
3. “Computing Order Statistics over Data Streams”, Xuemin Lin (项目主持人), Xiaofang Zhou and Jeffrey Xu Yu, ARC (Australian Research Council), AU$320K.
4. Recursive XML Query Processing”, RGC Earmarked Grant, HK$692,480, Jeffrey Xu Yu (项目主持人).
5. “Tracking and Digesting Global Financial Information fromWeb”, the Special Equipment Grant, HK$380,560, The Chinese University of Hong Kong, Jeffrey Xu Yu and Shuzhong Zhang.
6. “Automated Data Mining for Hot Bundle Analysis and Inventory Control”, RTAO ITF Grant, HK$1,413,000, Ada Fu (项目主持人) and Jeffrey Xu Yu.
7. “E-eyes on Global Financial Information: Tracking, Monitoring, and Digesting”, the Special Equipment Grant, HK$300,000, The Chinese University of Hong Kong, Jeffrey Xu Yu and Shuzhong Zhang.
8. “Continuously Financial Data Stream Analyzing and Mining”, the Special Equipment Grant, HK$300,000, The Chinese University of Hong Kong, Jeffrey Xu Yu and Shuzhong Zhang.
9. “Long Bio-Sequence Analyzing and Mining from a Database Perspective”, RGC Direct Grant, HK$135,000, Jeffrey Xu Yu (项目主持人).

James Cheng, Yiping Ke, Ada Wai-Chee Fu, and Jeffrey Xu Yu: "Fast graph query processing with a low-cost index", Vol. 20, No. 4, VLDB Journal, 2011.
Jiannan Wang, Guoliang Li, Jeffrey Xu Yu, and Jianhua Feng: "Entity Matching: How Similar Is Similar", Vol. 4, No. 10, Proceedings of the VLDB Endowment (PVLDB) , 2011.
Jun Gao, Jeffrey Xu Yu, Ruoming Jin, Jiashuai Zhou, Tengjiao Wang, and Dongqing Yang: "Neighborhood-Privacy Protected Shortest Distance Computing in Cloud", in Proceedings of the 2011 ACM SIGMOD International Conference on Management of Data (SIGMOD11) , 2011.
Bingsheng He and Jeffrey Xu Yu: "High-Throughput Transaction Executions on Graphics Processors", Vol. 4, No. 5, Proceedings of the VLDB Endowment (PVLDB) , 2011.
Shaoxu Song, Lei Chen, and Jeffrey Xu Yu: "Answering Frequent Probabilistic Inference Queries in Databases", IEEE Transactions on Knowledge and Data Engineering, Vol. 23, No. 4, 2011.
Lu Qin, Jeffrey Xu Yu, and Lijun Chang: "Computing structural statistics by keywords in databases", in Proceedings of the 27th International Conference on Data Engineering (ICDE11), 2011.
Hong Cheng, Yang Zhou, and Jeffrey Xu Yu: "Clustering Large Attributed Graphs: A Balance between Structural and Attribute Similarities", ACM Transactions on Knowledge Discovery from Data, Vol. 5, No. 2, 2011.
Lu Qin, Jeffrey Xu Yu, and Lijun Chang: "Scalable Keyword Search on Large Data Streams", VLDB Journal, Vol. 20, No. 1, 2011.

曾在超过280个机构、会议中任职，包括PC Co-chair of APWeb’04, WAIM’06, APWeb/WAIM’07, WISE’09, PAKDD’10, DASFAA’11, ICDM’12, and NDBC’13, and Conference Co-chair of APWeb’13等
2007—2011：ACM SIGMOD Information Director及执行委员会成员；
2004—2008：IEEE Transactions on Knowledge and Data Engineering associate editor；
目前：
于旭教授为VLDB Journal, WWW Journal, the International Journal of Cooperative Information Systems, the Journal of Information Processing, and Journal on Health Information Science and Systems等associate editor 。
ACM会员，IEEE高级会员，IEEE计算机协会会员
多次在国际顶级数据库会议(SIGMOD、VLDB等)、期刊上发表论文(简历中附近5年在顶级期刊发表的论文)。