John Vincent

ETL/DWH & BI Quality Analyst

+91 9941730490

vincentjohn43@gmail.com

SUMMARY

Driven professional with 45 months of experience in ETL/DWH & BI Quality Analyst

Proficient in all phases of STLC from test planning to defect management

Extensive experience in reviewing Business Requirement Documents, Functional Requirement

Documents and preparing Test Cases and Execution

Ample Knowledge in Data Warehousing concepts and RDMS Database - Teradata, Oracle & SQL

server

Expertise in Data Warehouse Architecture – IBM-BDW Model, EDW Model and Teradata-FSLDM

Extensive experience in Banking - Credit Risk Data Mart and Business Data Analysis

Extensive experience in developing SQL scripts, Teradata macros for validating the databases tables

and reports data for backend database testing

Good Exposure in Data Quality Check, Boundary Values checks, Static Testing, Integration testing

and Regression Testing

Exposure to ETL tools like Abinitio & Informatica

Expertise in BI Tools like Cognos (Report Studio & Query Studio) & SSRS

Extensive experience in Developing ETL graphs using Abinitio using components like Reformat,

Join, Filter, Partition by, Normalize, in-build HDFS Components

Exposure to Hadoop Big Data Testing on IBM Big Insights

Extensive experience in History Data Integration testing in Data Mart and History Management

Process Validation

TECHNICAL SKILL SET

Database : Teradata, Oracle 10g, SQL Server, DB2 8.0

Utility Tools : SQL Server, TOAD and SQL Assistant

ETL Tool : Abinitio, Informatica

Reporting Tool : Cognos, SSRS

Test Management Tool : HP Quality Center 10.0/11.0 ALM

Scheduling Tool : Mainframe (TWT)

Language Skills : SQL, PL/SQL, Unix/Linux Scripting

Data Model : IBM-BDW & EDW, Teradata – FSLDM

BIG Data Tools : Hadoop – IBM Big-Insights

PROFESSIONAL EXPERIENCE

PROJECT: Credit Risk Reporting

CLIENT: KeyBank

DURATION: September 2013- Till now

ORGANIZATION: Cognizant Technology Solutions, Chennai

ROLE: DWH Quality Analyst / ETL Test lead

DOMAIN: Banking and Financial Services

DESCRIPTION: Credit Risk Reporting (CRR) is used to review the credit standing and rating of their

customers. This report is designed to assist Financial Institutions and Credit Grantors strengthen their

credit risk management and improve turnaround time for credit evaluation. This is possible through the

availability of comprehensive and reliable credit information and ratings within a single report.

Bank wanted to build Data mart to review the credit standing and risk report of their customers via.

Cognos Reporting. The architecture of CRR was to move to date from 15 different Source to different

layers like Harmonization and Canonical layers and to integrate the data into single Database based on

IBM – BDW model called Shared Foundation Data (SFD). The Data from SFD will be moved to CRR

Data Mart.

Later, Bank wants to improve CRR Mart performance by replacing SFD – IBM BDW Model with

Hadoop framework using IBM big insights. To handle the volume of data and reduce the data load

complications. It also reduced the SFD - BDW data model complexity.

RESPONSIBILITIES UNDERTAKEN:

Performed Static testing to find the discrepancies between Business/Functional Requirements

document vs. Mapping Document across each layer to avoid mapping defect during STLC phase

Performed Boundary value checks based on the Business Requirements against Source data

Extracted data from various sources like Mainframe, Sybase, Oracle, SQL server, DB2, Flat files,

vector and conditional dml files

Extensively used Abinitio for file conversion from vector and conditional dml files to flat files

Worked on Data profiling to collect statistics and information about source data

Developed Test Plans, Test Strategy, Test scripts and executed the test scripts for CRR-DWH

Project.

Developed complex SQL queries and SQL procedures for querying data against different data

bases for source data verification process

Developed test scripts based on technical specifications/Data design documents and Source to

Target mappings

Extensively interacted with ETL developers, Line of Business & Business analyst teams to

understand the CRR project business requirements and ETL design document specifications

Participated in regular Project status meetings, Line of Business meetings and QA status meetings

Defects identified in SIT environment are communicated to the ETL developers and Line of

Business using Quality Center – Defects triage Meetings

Prepared daily and weekly status reports with details of executed, passed, and failed test cases

and defect status based on severity of defects

Setting up, monitoring and using Mainframe TWT Scheduler in SIT/QA Region

Worked on issues with migration of Data from Development to SIT/QA Environment

Developed Unix Scripts to validate the file availability in NAS region

Developed test scripts to validation the data flow form HDFS Source to IL Layer in Hadoop

environment using IBM Big Insight

Developed SQL procedures for regression testing between Source to Canonical Layer

Worked with PDM team and Business analyst for understating IBM – BDW model

Strong Exposure about all Subject areas in IBM-BDW Model and monitored the data flow across

all areas in SFD (Shared Foundation Data)

Developed Teradata macros to validate the Slowly Changing Dimension(SCD) Process in SFD

and Mart, History Data Management Process in SFD and Referential Integrity across all tables

Developed Data Analysis dashboard reports to validate the record count and key facts across all

the layer

Worked on General Ledger Reconciliation Process to verify the data in GL proof balance sheet is

matching with CRR mart

Worked on Business validation along with Line of Business in CRR mart during UAT

Extensively tested several Cognos Reports – Line of Business reports and Analytic Dashboards to

validate the reports the data and cosmetics of the report

Developed Ad-hoc reports using Report/Query Studio for data comparison between Production

and SIT region during UAT cycles

Providing Encouragement, Support, Knowledge and Guidance to team members during test

execution

Ensure that Process and Standard are followed by team members as defined by Company and

Clients

Developed Abinitio graphs for Source vs. Hadoop source files regression testing for Ancient

History FICO Source Data

Worked on Validating History Data Integration in Mart for both Analytic FICO Data and Credit

Card Data

Successfully delivered Credit Risk Mart to Business stakeholders in both SIT and UAT cycles by

leading a team of 3

Environment: Teradata, IBM Big insights, Abinitio, Cognos, Tivoli

PROJECT: ALM Technology Infrastructure

CLIENT: BNYM Mellon

DURATION: February 2013- August 2013

ORGANIZATION: Cognizant Technology Solutions, Chennai

ROLE: ETL Tester

DOMAIN: Banking and Financial Services

DESCRIPTION: Bank has an existing Asset and Liability Management System (ALMIS) which helps to

review the banks’ balance sheet, reconcile its value against the company’s general ledger and also

generate various requested by the US government and financial regulatory organizations like BASEL.

The existing system is mostly manual, has less scalability. With the introduction of the new BASEL III

rules, BANK wanted to build a robust, automated ALM System to meet current regulatory demands and

also create a system which can be scaled as time goes on. The architecture was to move data from 55

different sources of the bank and integrate the data into one central data warehouse using SSIS through

various data layers like staging, normalized and de normalized SQL Server 2008 databases, and perform a

full pledged reporting system using QRM (Quantitative Risk Management) – a third party application

which has industry proven experience in performing financial reporting.

RESPONSIBILITIES UNDERTAKEN:

Identified gaps between the mapping document, Data Model and Business Requirements

Developed Test Plan, Test Scenario and Test Cases

Developed SQL Queries based on mapping document for Test Execution

Validated Data flow between SQL Server 2008 tables across all layers

Defects were tracked, analyzed, reviewed using HP Quality Center

Involved in constantly monitoring the batch process to make sure the process ran smoothly,

contacting the Developing team if any errors encountered.

Involved actively in daily status meetings and provided testing status to Development team and

other stakeholders

Involved proactively with the team, in providing better solutions within the team for any issues

encountered.

Developed Data Governance dashboard reporting using SSRS for ALMTIP

Developed automated SQL procedures for regression testing

Environment: SQL Server 2008, SSRS

EDUCATIONAL QUALIFICATION

Course Institution Board/University Duration Percentage

M.E

Communication

Systems.

Sri Venkateswara

College of Engineering. Anna University.

(2010-

2012)

CPGA

:7.99

B.E Electronic and

Communication

Engineering.

St.Peter’s Engineering

College. Anna University.

(2006-

2010) 81

Higher Secondary

Education.

Little Flowers Higher

Secondary School. State Board.

(2005-

2006) 86.75

Secondary School

Education.

Little Flowers

Matriculation School. Matriculation.

(2003-

2004) 89.72

PERSONNEL DOSSIER

Date of Birth : 19-04-1989

Address : 53/29, Ponnusamy Street, New Washermanpet, Chennai - 81