Data Platform Engineer @ From March 2013 to Present (2 years 10 months) Research Assistant @ • Developed software in C++ and Perl to implement classification and conduct experiments. • Invented and implemented a post-processing algorithm, Iterated Classification, and reduced the error rate by nearly 30%. • Invented novel methodology to ground-truth diverse images used by our research group. • Adjusted system to run on 200-node Beowulf cluster; utilized cluster computing resources to facilitate the rapid execution of large scale, data intensive experiments. From January 2006 to February 2013 (7 years 2 months) Graduate Assistant @ • Implemented a newly published algorithm in Perl for alignment of unstructured text data. • Designed and conducted experiments to compare this algorithm with similar algorithms; and validated the effectiveness and efficiency of this algorithm. From January 2007 to May 2007 (5 months) System Engineer @ • Developed applications on IBM AS/400 system for financial departments to perform new operations. • Installed, tested and administrated a newly deployed workstation, front end and back end, for a bank notes auditing center. • Designed and drafted the Standard Operation Procedure for financial data backup. From June 2004 to June 2005 (1 year 1 month)

Ph.D, Computer Science @ Lehigh University From 2007 to 2011 M.S, Computer Science @ Lehigh University From 2005 to 2007 B.S, Computer Science @ 2004, University of Electronic Science and Technology of China Chang An is skilled in: C++, Algorithms, SQL, Hadoop, Hive, Oozie, Machine Learning, Statistics, Matlab, Perl, C, Research, Java, Mathematics, Computer Science