Tony Liu has over 15 years of experience in data warehousing, ETL development, and report development. He currently works as a Data Warehouse Developer at the University of Southern California, where he develops ETL scripts and Cognos reports. Previously, he held roles at Avery Dennison, Sony Pictures, and Siemens, among others, developing ETL scripts to migrate legacy systems and create reports. He has expertise in technologies like Oracle, SQL Server, DataStage, and Cognos.
● Experience in creating aggregates, hierarchies, filters, quick filters, calculated measures.
● Merge multiple data sources by joining multiple tables and using data blending.
● Experience in creating interactive dashboards by using Actions .
● By eliminating the unwanted data in worksheets by using filters.
● Designed and deployed reports with Drill up and Drop down menu option and Parameterized and Linked reports using Tableau.
● Experience in Creating Derived fields using calculated functions and parameters in Tableau
● By using context filter improve performance of tableau report .
● Designed a report to displaying the bottom of five customer dynamically by using sets
● Worked on the development of Dashboards for Key performance indicators for the top management.
● Experience in Tableau report developing, testing and deploying reporting solutions using Tableau Server.
● Scheduling the reports in Tableau Server.
● Experience in creating aggregates, hierarchies, filters, quick filters, calculated measures.
● Merge multiple data sources by joining multiple tables and using data blending.
● Experience in creating interactive dashboards by using Actions .
● By eliminating the unwanted data in worksheets by using filters.
● Designed and deployed reports with Drill up and Drop down menu option and Parameterized and Linked reports using Tableau.
● Experience in Creating Derived fields using calculated functions and parameters in Tableau
● By using context filter improve performance of tableau report .
● Designed a report to displaying the bottom of five customer dynamically by using sets
● Worked on the development of Dashboards for Key performance indicators for the top management.
● Experience in Tableau report developing, testing and deploying reporting solutions using Tableau Server.
● Scheduling the reports in Tableau Server.
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• 11+ Years of IT Industry experience in Analysis, Design, Development, Maintenance and Support of various software applications mainly in Data Warehousing (Informatica Power Center, OWB, SSIS and Business Objects), Oracle (SQL, PL/SQL) and Teradata in industry verticals like Finance, Telecom, Retail and Healthcare.
• Work experience in client facing roles in UK and Ireland.
• Performed numerous roles in Business Intelligence projects as Data warehouse System Analyst, ETL Designer, Onshore coordinator, Technical Lead and Senior Data warehouse Developer roles with multinational IT result-driven organizations
• Extensive experience on Data integration projects accessing sources like Teradata, Oracle and SQL server.
• Created robust EDW Solution from various types of sources like Flat files, XML Files, EDCDIC Cobol copybook from Mainframe systems, DB2 Unload files.
• Extensive experience on Data discovery, cleansing using Informatica IDQ.
• Resolved Inconsistent and Duplicate Data issues during Data Analysis to Support Strategic EDW Goals.
• Extensive experience of Data Integration using Informatica Power center Tool stack.
• Strong knowledge on Data Warehousing concepts, ETL concepts, Data Modeling, Dimensional Modeling.
• Conducted training on Informatica and have achieved awards for proficient training capabilities.
• Excellent understanding of OLTP and OLAP concepts and expert in writing SQL, Stored procedure on Teradata, Oracle and SQL Server.
• Extensive experience in implementing Data Warehousing methodologies including STAR SCHEMA and SNOW-FLAKE SCHEMAS & 3NF for huge data warehouses.
• Extensive knowledge on Change Data Capture (CDC) and SCD Type 1, Type 2, Type 3 Implementations.
• Excellent understanding of Kimball and Inmon Methodologies.
• Provided leadership when addressing high level technical issues and questions with the functionality of the reporting and business intelligence applications.
• Managed the current and strategize to foresee and plan for the future engineering needs in Data Integration space.
• Performed roles as a interface and coordinator between Database Administration, ETL Development, Testing teams and reporting teams to eliminate the road blocks for smooth flow of information.
• Hands on experience in tuning ETL mappings, identifying and resolving performance bottlenecks in various levels like sources, targets, mappings, and sessions.
• Expert in designing and developing of complicate ETL mappings using Informatica PowerCenter.
• Proficient in optimizing performance issues using Informatica PowerCenter and Teradata.
• Having experience on using Teradata utilities (TPT, BTEQ, Fast Load, MultiLoad, FastExport, Tpump).
• Exposure in writing Shell Scripting as per given requirement.
• Work extensively in Teradata GCFR tool.
• Experience in SAP ECC integration with Informatica.
• Got training in Tableau, Qlik View& SAP BW 3.5and done POC for the same.
• 11+ Years of IT Industry experience in Analysis, Design, Development, Maintenance and Support of various software applications mainly in Data Warehousing (Informatica Power Center, OWB, SSIS and Business Objects), Oracle (SQL, PL/SQL) and Teradata in industry verticals like Finance, Telecom, Retail and Healthcare.
• Work experience in client facing roles in UK and Ireland.
• Performed numerous roles in Business Intelligence projects as Data warehouse System Analyst, ETL Designer, Onshore coordinator, Technical Lead and Senior Data warehouse Developer roles with multinational IT result-driven organizations
• Extensive experience on Data integration projects accessing sources like Teradata, Oracle and SQL server.
• Created robust EDW Solution from various types of sources like Flat files, XML Files, EDCDIC Cobol copybook from Mainframe systems, DB2 Unload files.
• Extensive experience on Data discovery, cleansing using Informatica IDQ.
• Resolved Inconsistent and Duplicate Data issues during Data Analysis to Support Strategic EDW Goals.
• Extensive experience of Data Integration using Informatica Power center Tool stack.
• Strong knowledge on Data Warehousing concepts, ETL concepts, Data Modeling, Dimensional Modeling.
• Conducted training on Informatica and have achieved awards for proficient training capabilities.
• Excellent understanding of OLTP and OLAP concepts and expert in writing SQL, Stored procedure on Teradata, Oracle and SQL Server.
• Extensive experience in implementing Data Warehousing methodologies including STAR SCHEMA and SNOW-FLAKE SCHEMAS & 3NF for huge data warehouses.
• Extensive knowledge on Change Data Capture (CDC) and SCD Type 1, Type 2, Type 3 Implementations.
• Excellent understanding of Kimball and Inmon Methodologies.
• Provided leadership when addressing high level technical issues and questions with the functionality of the reporting and business intelligence applications.
• Managed the current and strategize to foresee and plan for the future engineering needs in Data Integration space.
• Performed roles as a interface and coordinator between Database Administration, ETL Development, Testing teams and reporting teams to eliminate the road blocks for smooth flow of information.
• Hands on experience in tuning ETL mappings, identifying and resolving performance bottlenecks in various levels like sources, targets, mappings, and sessions.
• Expert in designing and developing of complicate ETL mappings using Informatica PowerCenter.
• Proficient in optimizing performance issues using Informatica PowerCenter and Teradata.
• Having experience on using Teradata utilities (TPT, BTEQ, Fast Load, MultiLoad, FastExport, Tpump).
• Exposure in writing Shell Scripting as per given requirement.
• Work extensively in Teradata GCFR tool.
• Experience in SAP ECC integration with Informatica.
• Got training in Tableau, Qlik View& SAP BW 3.5and done POC for the same.
1. Tony Liu
Phone: (714) 487-2303
email: tong8@hotmail.com
QUALIFICATION HIGHTLIGHTS
Committed to achieving and exceeding corporate goals, work effectively with team members to
achieve desire results
Easily adaptable to changes, with an eagerness toward learning and expanding capabilities
Quick learner, able to grasp and master new concepts easily
Detail-oriented with good organizational skills
Ability to deal with a fast paced production environment
Adaptable to handle multiple projects
Logical/technical mindset and problem solving skills that enable to understand various processes and
work within and around them and to understand, identify, and resolve problems in the process
Strong knowledge of data warehousing, data modeling and other concepts
TECHNICAL EXPERTISE
Systems: Windows, UNIX, AS 400
Software/Application: Oracle, DB2, SQL Server, MySQL
Business Object, Cognos Report, Crystal Report
Data Stage, Toad, PL/SQL, Power Builder, Visual Basic, COBOL
PROFESSIONAL EXPERIENCE
University of Southern California
Data Warehouse Developer
Cognos Report Developer 2012 – Present
Developed ETL scripts to load legacy systems to EDW
Developed ETL scripts to load Kuali Financial Systems and legacy systems to EDW
Developed ETL scripts to load WorkDay payroll systems to EDW
Developed Cognos Reports
Developed Cognos Framework
Deployed Cognos reports to Test and Prod environment
Implemented user security
Avery Dennison
Data Migration Developer 2010 – 2012
Develop ETL scripts to convert legacy systems to the new online ordering systems
Developed ETL scripts to load legacy data
2. Converted multiple legacy data source to java scripts
Sony Pictures, Sony Home Entertainment 2005 – 2010
Data Stage Developer
Data Migration Developer
Business Object Report Developer
Performed database migration and integration from the legacy systems using IBM Data stage
Prepared data mapping
Developed ETL scripts convert legacy systems
Developed Business Object reports for Sony Pictures
Developed Business Object reports for Sony Home Entertainment
Developed Business Object “Universes” for Sony Home Entertainment
Wrote function codes for different tasks in the database table
Automated the data conversion QA process
Provided post go-live support for every converted territory
Managed offshore teams
Siemens Energy & Automation, Inc 2005 – 2005
System Analyst
Provided production support (24/7)
Deployed PKMS application upgrade
Executed PKMS Services recycle
Troubleshoot system issues for N-Tier and Unix PKMS
Slotting new locations for Distribution Center
Aramark, Inc. 2004 – 2005
System Analyst
Setup new distribution facility in Reno
Implemented PKMS N-Tier system on Unix-HP
Test new MOD and promote new changes to production environment.
Setup printers, label printers and RF terminals
Document system changes in different environment
Developed reports using Crystal report
Provided training for end users
Komyo America, Inc. - American Honda 2003 – 2004
System Analyst
Provided Production support
Provided training for Supervisor and Lead to use PKMS system on RF (PDT- 8146) units
Run Pickticket waves to ship parts to Honda dealers via FedEx and Conway
Run Distribution wave to ship parts to Honda Part Centers via JB Hunt and CT
Designed Wave rules to meet International, FedEx Parcel, LTL, and Hazmat shipping need
Designed PKMS Menu for Associate, Lead, Supervisor and inventory team to meet their need
Troubleshoot PKMS systems and RF problems
EDUCATION
Oracle Internet Developer and DBA – Certificate Courses 1999 – 2001
3. UCLA Extension
Bachelor of Science, Major in Computer Information Systems 1992 – 1996
University of North Alabama