• Working on terabyte-level big data with Hadoop cluster and very large enterprise-level data warehouse based on MPP architecture, e.g. Netezza.• Write very complicated SQL, procedure SQL programs to summarize data as per analytic requirements.• Profile different data sources. Identify data anomalies, and possible fixes.• Ad-hoc ETL between systems. Use loading/Exporting tools. Transfer files between platforms.• Development/Maintain C/C++/Java programs that interact with high-volume messaging systems.

Big data processing and analysis, shell programming, solutions development.

One of the key roles of the Huawei Enterprise Unified Communications (UC) solution team.• Designed over 20 new call features for Huawei IP PBX production and enterprise UC solution.• Designed new CDR formats for some special billing requirements.• Analyzed requirements and designed their implementations in more than 5 complete version-level life circles, including requirements decomposition, top level design and allocation of the requirements into modules, and workload estimation for each module.• Acted as product owner in 2 scrums during the trials of the agile software development process.• Made the development plan and road-maps for the enterprise unified communications (UC) solution.• Applied 3 China patents on unified message, teleconference callback, and trans-code VoIP.• Supervised a Sales Technological Support team of 6 members from Jan. 2008 to Apr. 2009. - Supported sales activities, e.g. meeting with customers, answering bidding documents, training sales engineers from cooperation partners. - Won China Mobile IP PBX biddings in three provinces within one year.• Acted as a Software Developer for two VoIP productions from Dec. 2005 to Jun. 2007. - Maintained and developed Fixed over 200 bugs in the call control module as well as the resource management module with C programming language. - Honored Personal Innovation Award of 2006 from Huawei Hangzhou Research Center for the creative improvement on the teleconference feature of the IP PBX production.

• Supported the system integrated test of optical network devices, specialized in the network management system (NMS). Wrote a graphical step-by-step manual to introduce the installation and update of the NMS in the Solaris OS.• Supported the electromagnetic compatibility (EMC) test for a new optical switch.