1. CURRICULAR VITAE
Personal Details
Name Hanyool Chang
Contact +82-10-3759-0180(Mobile), +82-2-6478-3562 (Home)
Hanyool.chang@gmail.com, huchang89@empal.com
A desire position Information technology or service, Oracle DBA (including ERP)
Enterprise computing system management and implementation
Work Experience
1997.1 ~ Present Oracle Korea
Position Senior Principal Consultant
Department Tech team in Consulting LOB
Career Overview
- I have over 13 years of experience of projects in E-business suite (ERP) technical and Oracle
DBA. I have an experience and technical knowledge of implementation of project and operation skill
in E-business suite system administrator, Oracle DBA and other E-business suite related products.
In addition, I have an understanding and co-work skill about business and field knowledge in
Finance, Customer relationship management, Supply chain management and Human resources for
cooperation working.
- I have a sufficient technical skill/support and a lot of project experience in Oracle technology like
RDBMS, WAS(Web server), Oracle fusion middleware etc. Moreover, I have a rich knowledge and
experience in Oracle DBA, Performance tuning and ERP technical part.
- I have an ability and skill for the technical team leading, technical system architecture, CRP
testing, and technical support for maintenance in enterprise computing projects/environment.
Visa Type
- I am working in Korea however I have a permanent residential Visa (Sub class 136) in
Australia, so you do not need to concern about my working visa and I can accommodate your
company’s schedule.
Detail Experience
- KT IFRS implementation project 2009.3 ~ Present
 Client: KT (The largest Telecom company of Korea)
 Role:
Carrying out ERP system administrator, Oracle DBA, Performance Tuning/Testing and
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2. technical support (7TB-sized 10g DB with RAC) as a technical team leader for IFRS on
ERP R12 implementation project. I do performance tuning for efficient control of increased
data multi-GL and FA books. I communicate and control between functional consultants
and developers for implementing business requirements.
- Oracle DBA and ERP system administrator
- Performance Tuning including SQL tuning
- Technical support of Oracle products
- Technical team leading
- KT upgrade project 2008.3 ~ 2009.2
 Client: KT (The largest Telecom company of Korea)
 Role:
I carried out ERP system administrator, Performance testing, development guide and
Oracle DBA (6TB-sized 10g DB with RAC) for ERP (Financial, SCM) upgrade from R11i to
R12 implementation project. I did health-check and re-structuring technical architecture
among lots of related legacy systems and ERP of customer. Leading technical team which
is composed by Oracle partners.
- Oracle DBA and ERP system administrator
- ERP/DB upgrade and performance tuning
- Technical architect and health-check between numerous legacy systems
- Technical team leading and technical support
- LG Telecom MDM implementation project 2007.11 ~ 2008.2
 Client: LG Telecom
 Role:
I carried out ERP system administrator and Oracle DBA (2-node RAC, 11TB-sized 10g DB)
for Customer/Product Data Hub system in new customer and billing enterprise computing
system implementation project. I consulted technical architecture about MDM (CHD/PDH)
and legacy systems. I carried out technical support for technical trouble shooting.
- Oracle DBA and ERP system administrator
- Technical architect
- Oracle technical trouble shooting
- Chunbook hospital R11i upgrade project 2007.6 ~
2007.11
 Client: Chunbook hospital
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3.  Role:
I carried out technical capacity planning, ERP system administrator, Oracle DBA and
performance tuning in upgrade system project for old version ERP system.
- Oracle DBA and ERP system administrator
- Performance tuning
- Oracle technical support
- Hanjin shipping ERP/CDH implementation project 2006.4 ~ 2007.5
 Client: Hanjin shipping (The largest logistics company of Korea)
 Role:
This project was implementation ERP (human resources, financial, customer data hub on
2-node RAC 10g DB) and implementation system integration with Oracle SOA(Service
Oriented Architecture). I carried out technical architecture design and implementation,
capacity planning, implementation Oracle RAC, making backup/recovery strategy,
development guide, technical support for integration SOA and ERP, Performance tuning
and technical issue support as an Oracle DBA and ERP system administrator.
- Oracle DBA and ERP system administrator
- Performance tuning including SQL tuning
- Oracle technical support including SOA
- Technical team leading and technical architect
- LG Electronics Global Single instance project 2005.10 ~ 2006.3
 Client: LG Electronics
 Role:
This project was upgrading and integration between ERP (2-node RAC, 10TB-sized DB)
and legacy systems and data migration from legacy system to ERP system for Global
Single Instance of LG Electronics’ ERP system in the whole world. I carried out technical
architecture, Oracle RDBMS/ERP upgrade, adding and re-implementation of Oracle RAC
node, performance tuning, Oracle DBA and technical support.
- Oracle DBA and ERP system administrator
- Oracle technical trouble shooting
- Technical architect for legacy systems
- Samsung life insurance’s DB2 to Oracle downsizing project 2005.6
~ 2005.9
 Client: Samsung life insurance (The largest Life Insurance company of Korea)
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4.  Role:
I carried out Oracle DBA, education of Oracle RDBMS 10g new feature, function mapping
between IBM DB2 and Oracle RDBMS, Oracle RAC implementation, backup/recovery
guide and consulting for data migration from DB2 to Oracle RDBMS as a database analyst
in the project that was downsizing applications and data from IBM DB2 to Oracle RDBMS
(RAC).
- Oracle DBA
- Oracle technical support
- ReignCom ERP implementation project 2004.8 ~ 2005.4
 Client: ReignCom (Electronics company)
 Role:
I carried out technical architecture design and implementation, capacity planning, making
backup/recovery strategy, performance tuning and technical support in integration between
portal and ERP system as a technical leader and DBA for the project which was
implementation of ERP (finance, supply chain management and manufacturing) for
integration Korea and China factories.
- Oracle DBA and ERP system administrator
- Oracle technical support
- Performance tuning
- Doosan Heavy Industry ERP implementation project 2004.3 ~ 2004.7
 Client: Doosan Heavy Industry
 Role:
Carrying out technical administrator, DBA, backup/recovery strategy planning, HA
implementation and performance tuning in the Oracle ERP (finance, SCM, projects)
implementation project
- Oracle DBA and ERP system administrator
- Oracle technical support
- Performance tuning
- LG Electronics HR/ERP integration Project 2002.10~2004.2
 Client: LG Electronics
 Role:
Carrying out technical architecture design and implementation, capacity planning, Oracle
RAC implementation, DBA, development guide and performance tuning in the project that
was add-on Oracle ERP (finance, SCM) implementation for the existing ERP HR system.
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5. - Oracle DBA and ERP system administrator
- Performance tuning
- Oracle technical support
- The others
 Carrying out DBA, development guide and technical architect in POSDATA, LG-IC etc.
 Carrying out resolving technical issues for the lots of customers.
 Involving into pre-sales tasks at many times.
Knowledge and Skill
Oracle E-Business suite (ERP): System Administrator, AppsTech
RDBMS : Oracle DBA
Hardware: SUN, HP, IBM
Software: RDBMS (8i, 9i, 10g) DBA, Oracle SOA suite
Oracle Fusion middleware, WAS (9i, 10g)
Oracle 11g (no project experience)
Programming Languages : PL/SQL, C, Java
Education Background
1989.3 – 1995.2 A Bachelor’s degree in Computer Science, Chung-Ang University
1995.3 – 1997.2 A Master’s degree in Computer Science and Engineering, Chung-Ang
University (Major was Database)
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