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Member since 16 de noviembre de 2016
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Haijun_Neil Zhang

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I have worked as Oracle DBA for many years and I can handle almost all kinds of issues related with Oracle database. Also I am an experienced system administrator, especially in Linux and Unix field. I can handle some Windows issues, not all of them. :) Currently I am learning Web and Database programming, using PHP and MySQL, based on Laravel and Bootstrap.
$15 USD/hr
3 comentarios
  • 100%Trabajos finalizados
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Principal Oracle Database Administrator

Mar 2011 - Jun 2016 (5 years)

* Providing physical DBA services on Oracle and SQL Server to IBM main client Michelin. * Supporting projects involving database upgrading, data migration and new application launching. * Dealing with BAU tasks, such as normal requests and changes from customer, general or high severity incidents, security violations fixing, patch installation and more. * Deployed Oracle Data Guard, RAC, Oracle Fail Safe & Windows MSCS for project.

Senior IT Support Engineer

Oct 2008 - Mar 2011 (2 years)

* Designed architectural solutions to match customer requirements and implemented them finally. * Installed and configured hardware, including IBM pSeries and xSeries servers, Oracle SPARC servers, IBM DS Storage and EMC CX-series storage arrays. * Reconfigured the Oracle10g RAC and Serviceguard on HP-UX in Shenzhen International Airport. * Implemented Oracle10g Stream data replication on Solaris in Wuxi TDK-Lambda Corporation.

Oracle Database Administrator

Jul 2006 - Jul 2008 (2 years)

* Maintained Oracle8i BOSS (Business & Operation Support System) databases of Jiangsu Telecom. * Supported Oracle9i RAC and VCS on AIX of Jiangsu Entry and Exit Inspection and Quarantine Bureau. * Carried out regular health checks and quarterly inspection on their databases, analyzed the collected data and gave improvement plan if needed.


Bachelor of Mechanical Manufacture

1996 - 2000 (4 years)

Graduate Diploma in Information Technology

2016 - 2016 (1 month)


Red Hat Certified Engineer (2004)

Red Hat

Red Hat 9

Oracle9i Database Administrator Certified Professional (2006)


My first OCP certificate

Oracle Database 10g Administrator Certified Professional (2010)


My second OCP certificate

Oracle Database 12c Administrator Certified Professional (2016)


12c is the latest Oracle database version

Oracle Certified Expert, Oracle Database 12c: RAC and Grid Infrastructure Administrator (2016)


It is very hard to get this Expert certificate

IBM Certified System Administrator – AIX 6.1 (2010)


AIX is one of the most popular Unix system.


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