Beijing University of Chemical Technology

Senior Product Engineer at JD.COM

Beijing, China

Manage the availability,scalability,performance of online payment platform,POS system,and finance products.Diagnose and repair application ,OS,or network problems.Program in Perl/shell script for deployment and management tools.Proficiency in UNIX/Linux tools and utilities.

JD.COM

Senior Product Engineer (Linux Admin)

Responsible for OS(Cent OS and Debian) and application maintenance,including,but not limited to,OS updating,Postfix,DNS Bind,LVS load balance,Nginx/Apache,Resin，KVM/CloudStack,GlusterFS.Program with shell/perl ,and cooperate with puppet,svn,and git,to complete service package updating to online.Program with perl (Dancer Webframework) and bootstrap to develop internal website for visualising information such as network flow of cluster,delopyment schedule,exception trend and etc.Program with Shell and Perl to develop monitor system,which collecting metrics from thousands of client servers,sending back to center server,processing the metrics and sending alerm through Postfix and SMS.Develop other tools used in AppOps works , automatic deal with usually occured problems.In charge of capacity planning,predicting when and how many resources should be given to online clusters .

WU CHARLES