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Customer Service Data

Location:
Edison, New Jersey, United States
Posted:
October 13, 2016

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KRISHNAMANOHARI RAMAMOORTHY +1-908-***-****

SUMMARY

Over 12 years of industry experience in IT with a strong background in Data Warehousing.

Extensive experience in Data Extraction, Transformation, and Loading (ETL) using Informatica Power Center 6.x, 7.x,9.x

Solid experience in Informatica Power center Mappings, Mapplets, Transformations, Workflow Manager, Workflow Monitor, Repository Manager, Star Schema and Snow flake Schema.

Worked extensively with complex mappings using Expressions, Joiners, Routers, Lookups, and Update strategy, Source Qualifiers, Aggregators to develop and load data in to different target types.

Extensive experience in creating the Workflows, Worklets, Mappings, and Mapplets.

Databases and Data Sources:

Worked with Data sources such as AS400, DB2, Oracle, SQL server, Flatfiles.

In general, very familiar with creating and dealing with database objects such as tables, views etc.

Experience in writing Development test cases, Unit test plans and Unit testing.

Ability to create detailed technical design, code, test, debugs, document, and maintain applications.

Worked directly with end users and other developers to define requirements, review design, develop and test assigned components.

Excellent team player and a self-motivated individual.

Technical Skills

Software

Informatica, Oracle(SQL,PL/SQL), AS400,Teradata

Hardware

Win server 2003, Win NT, Win XP, Unix

Tools

Informatica Power Center 9.1, Oracle, Toad, SQL developer, Teradata, Control- M, IBM Rational ClearCase, HP Quality center.

Big Data / Hadoop Knowledge

Undergone training in Big Data / Hadoop, HDFS, Hive ; Familiar with Hadoop Eco System

Technical

Designed and created Database objects, like Tables and Views.

Developed the Mappings using various transformations according to the Mapping

Design

Document. Expertise in RDBMS concept.

Business / Domain Expertise

Almost 9 years of experience in Banking Domain;

Around 4 years of experience in ISP (Internet Service Provider) domain

PROFESSIONAL EXPERIENCE

Tata Consultancy Services, India Nov 2011 – Aug 2016 Client - Westpac Bank, Australia (Offshore)

Informatica Technical Lead - GDW – Group Data Warehouse

Westpac Bank is the oldest bank in Australia, which started in the year 1817 as Bank of New South Wales. TCS as a vendor provides consulting and support to the bank.

GDW – Group Data warehouse is Westpac’s corporate data warehouse. It functions as a core repository of information used for both operational and MIS functions in areas such as Marketing, Finance and Credit to better understand Westpac’s customer needs, product penetration and credit exposure.

GDW Sources data from approximately 50 source systems, some of which are listed below:

Trading Bank System (TB), Customer Information System (CIS), Trade Finance (TF), Term Deposit System (TD),

Savings Bank System (SB), Online Banking (HBO), Telephone Banking (HB), General Ledger (GL) etc. Data is stored on Oracle Database and loaded at intraday, daily, weekly and monthly intervals.

GDW has interface system called EIG which actually takes data from source system and provides Standard Data Interfaces (SDI – Informatica Mapplet) to GDW. However, there are some sources (older ones) still interfacing directly in the form of files to GDW landing area, or extraction of source data from source using Unix/PL/SQL procedures.

The data from GDW is consumed by various business users for decision making, and also data from GDW is sent to Australian Regulatory Authorities for meeting various compliances.

Environment: Win-XP, Informatica 9.x, Oracle10G, UNIX, Teradata

Responsibilities:

Requirement gathering, validate and review data model.

Designing (Technical Design) based on FSD.

Knowledge in designing tools like Erwin (4.0) and data modeling on Logical and Physical

Models.

Assigning and prioritizing task.

Work with QA Manager to develop test specifications.

Responsible for key architecture decisions.

Assisting in production support issues, coding, testing, performance tuning.

Completing Weekly status report to Project Managers.

Interfacing with other downstream team in doing analysis for impacted components due to migration

from Oracle to Teradata.

Transform business requirements to appropriate solutions.

United Overseas Bank, Singapore Jan 2009 – Feb 2011

Informatica Technical Lead - GDW – Global Data Warehouse

GDW is the central repository of data for the entire bank. It will also be a source of information to feed to other downstream and data marts. GDW will push the data out of GDW via ETL to a staging or interface area, where other applications can pull information from that staging or interface area.

Data from all the sources are loaded via Connect Direct into AS400 Staging area. Different country data will be kept under different library. Informatica will pull data from AS400 source staging area and load into Oracle database for data transformation process. Finally the data’s are loaded from Oracle GDW to AS400 GDW. End users will be using Showcase to access the information from this GDW. Proper security control mechanism has been set up to make sure only authenticated users can access to authorized information.

Environment: Win-XP, Informatica 8.6, Oracle9i, UNIX, PL/SQL.

Responsibilities:

Requirement gathering, validate and review data model.

Designing (Technical Design) ETL interfaces.

Reviewing mapping design by team members as well as leading the team in coding, testing, performance tuning in developing Informatica mappings, Stored Procedures, Triggers and workflows.

Coordinate and deliver application development related activities with team of 4 members to achieve

success in design, development and deployment activities.

United Overseas Bank, Singapore Mar 2006 – Dec 2008

Senior Informatica Developer

SUR - Standard Unit Rate

Developed ETL solution for Standard Unit Rate [SUR] Data Mart to store data volume from various source systems and to compute Standard Unit Rate for IT charging. Solution was implemented for countries, Singapore China, Hong Kong, Thailand and Indonesia.

Singapore Deposit Insurance

Developed ETL solution for Singapore Deposit Insurance Corporation [SDIC] to extract customer details, deposit account balances, credit facilities and balances into data structure and format specified by SDIC.

HKHDP – HongKong Deposit Protection

Developed ETL solution for Hong Kong Deposit Protection [HKDP] to enrich customer information, deposit account balances, credit facilities and balances into data structure and format specified by HKDP.

Environment: Win-XP, Informatica 8.6, Oracle 9i

Resposibilities:

Delivered responsibilities as Analyst and Programmer including interaction with Business Users

for Requirements Gathering.

Creating Technical Specifications, Design, Development, and Production Support

& Maintenance. Created mappings using various Transformations.

Deployed reusable transformation objects such as mapplets to avoid duplication of metadata, reducing the

development time.

Used Debugger,verbose data to fix the bug.

Done performance tuning by identifying bottle necks in source, target and in other transformations.

Done generation of explain plan and autotrace to tune long running sql query.

Pacific Internet Limited, Singapore May 2005 – Feb 2006

Database Application Engineer

Consumer DataMart

The customer service registration system helps the front end customer service people to access to various applications like, registering the new signups, Add-on services interfaces, suspension of services, terminating the services, Mass suspensions, Mass terminations and various types of forms and reports related to oracle financial applications.

Environment: Win-XP, Oracle 7.1, Oracle8i, Oracle10G PL/SQL

Resposibilities:

User requirements gathering for new product developments.

Systems analysis and solution design.

Expertise in developing, debugging, performance tuning - Stored Procedures, Packages, Functions, Triggers.

Worked with DBA for partitioning and creating indexes on Tables.

Pacific Internet Limited, Singapore Jan 2001 – Apr 2005

Database Application Engineer

Email Outsource (Classic Plan, Corporate Roaming)

Online transaction system was developed to handle the email-outsource products that are sold to customers who have their own domain.

Quota management system was developed for Corporate plans for customers who have their own domain

Corporate Services Registration System

The corporate service registration system helps the front end customer service people to access to various applications like, registering the new signups, Add-on services interfaces, Transfer Of corporate accounts, withdrawal of terminated Accounts for consumer & corporate, and various types of reports.

Environment: Win-XP, Oracle 7.1, Oracle8i, Oracle10G PL/SQL,

Resposibilities:

User requirements gathering for new product developments.

Systems analysis and solution design.

Expertise in developing, debugging, performance tuning - Stored Procedures, Packages, Functions, Triggers.

Worked with DBA for partitioning and creating indexes on Tables.

EDUCATION

Masters in Information Studies from Nanyang Technological University, Singapore

Master of Computer Applications from Bharathidasan University, India

Bachelor of Computer Science from Bharathiyar University, India

Visa Status

L2-EAD (Employment Authorization Document)

Validity from 08/08/2016 to 07/08/2018



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