Hao Xu

*** ******* **., ********, **, *****

571-***-****

actef1@r.postjobfree.com

CAREER SUMMARY

Highly motivated with 8 years of IT experience and proven desire to continually learn and apply new generation technologies.

Proficient in Oracle, MySQL databases installation and maintenance.

Experienced in design, implementation and administration of database high availability solutions, including Oracle RAC, Oracle Data Guard and MySQL cluster.

Expertise in Oracle Database Performance tuning and SQL optimization.

Extensive experience in Oracle tools like RMAN, SQL Loader, OEM, Toad, SQL Plus, etc.

Exceptional interpersonal skills with the ability to clearly communicate with non-technical and technical people at all levels.

Experienced working in various operating systems and visual environment using VMWare.

EDUCATION & TRAINNING

The George Washington University Washington D.C., USA

M.S in Computer Science 8/2014 - 12/2015

Dalian Maritime University Dalian, China

M. Eng. in Software Engineering 09/2006 - 07/2008

Dalian Jiaotong University Dalian, China

B.S. in Computer Science and Technology 09/2002 - 07/2006

PROFESSIONAL EXPERIENCE

Shanda Interactive Entertainment Ltd, Shanghai 01/2014 - 08/2014

Senior Oracle DBA

Maintained the databases of the largest literature website that captures 80% of the market share in Chinese literature.

Duties:

Provided primary support (24*7) for production databases (Oracle, MySQL and MongoDB) that encompass more than 100 instances and more than 800 TB data spinning in multiple locations.

Managed and configured Oracle RAC and Oracle Data Guard to ensure maximum high availability, which ensured database zero downtime.

Developed scripts to automate manually intensive tasks, including data migration, data replication, schema changing and routine backup strategies.

Handled performance issues and databases security management.

Provided SQL and PL/SQL training sessions for software engineers and created user-friendly materials.

Oncard International Ltd, Shanghai 04/2012 - 12/2013

Senior Oracle DBA

Served as a lead DBA of four people DBAs group to provide database and server support for one of the largest customers loyalty rewards system in Australia.

Duties:

Managed configurations, maintenance and implementations of Oracle RAC databases, IBM AIX servers and EMC storage.

Resolved performance issues in databases by using SQL optimization and parameters adjustment, which improved the efficiency of some functions by at least 60%.

Supported sales and support team to quickly respond to customer requests, which contributed to 20% of the customer volume growth per fiscal year.

Designed disaster recovery plans for operational databases, delivering solutions that guaranteed recovery performance and high availability.

Designed and managed data replication process from Oracle to Oracle, MySQL and MSSQL Server by using Oracle Golden Gate.

Developed database and server monitor tools using shell language.

Travelsky Technology Ltd, Shanghai 05/2008 - 04/2012

Database Administrator 05/2009 - 04/2012

Managed various database administration assignments for two main projects in company (CRS, HotelIBE), including implementations, performance tuning, SQL optimization, and data modeling, etc.

Duties:

Managed 20+ medium- to large-scale databases implementations, including Oracle RAC, Oracle Data Guard, MySQL, PostgreSQL and TimesTen in various OS and hardware.

Provided database backup and recovery scripts and strategies.

Cooperated with project and production manager in database modeling and schema designs.

Programmer 05/2008 - 05/2009

Duties:

Successfully designed and coded tasks using Java, JSP and C#.

Implemented a code generator using Java as a group leader, which greatly reduced the redundant workload of other programmers on this project.

Dalian Hi-Think Computer Technology Corp, Dalian 10/2006 - 03/2008

Java and Oracle Developer

Duties:

Analyzed business requirements, implemented tasks using Java, SQL and PL/SQL.

Created test scripts and test scenarios, developed test cases.

CERTIFICATION

Oracle 9i Certified Professional (OCP) 08/2005

Oracle 9i Certified Associate (OCA) 01/2005

SKILLS

Databases: Oracle (9i, 10g, 11g, 12c), MySQL, MS SQLServer, TimesTen, PostgreSQL, MongoDB.

Languages: SQL, PL/SQL, Java, Shell, C#, Objective-C, R.

Operating Systems: CentOS, RedHat, UNIX, AIX, NT

Contact this candidate