Vignesh Balasubramanian
BENGALURU
Summary
With over 13 years of industry experience, this accomplished Test Lead possesses a deep understanding of Software Testing. Expertise lies in functional testing, particularly in Mainframe systems (Online/Batch Testing), Teradata, DB2, and API. Additionally, there is a good knowledge of Tosca Automation for APIs. Also, a strong background in ETL. Throughout the career, there is a consistent demonstration of commitment to delivering high-quality results and ensuring the efficiency and effectiveness of testing processes.
Overview
14
14
years of professional experience
2011
2011
years of post-secondary education
Work History
Senior Automation Tester
IBM
Bangalore
11.2023 - Current
- Testing the CPP portal and related functionalities of the Loyalty domain having both online and Batch testing
- Cobrand and non cobrand related partners to be onboarded to CPP using the Customized services from loyalty side for the CPP
- Contribution: Testing the Batch Testing Realtime API using Postman
- Automation of API used for testing through Tosca Supporting other team activities
Senior Test Analyst
IBM India Pvt Ltd
03.2022 - 10.2023
- Company Overview: HSBC Holdings plc is a British multinational universal bank and financial services holding company
- Core banking can be defined as a back-end system that processes banking transactions across the various branches of a bank
- The system essentially includes deposit, loan and credit processing Statement Generation
- Private Banking statement simplification which includes the detailed generation of Statements, Tax invoices, PNA advices
- Leading the Team and provide estimations for the running the project
- Prepare Test Plan/Strategy and Test Cases
- Worked on executing the written test cases via HSBC tools and Mainframes
- Provide walkthrough to busyness on Scenarios/evidences and Conduct Defect Triage meetings
- Have coordinated with various other teams to get the information about their data and format to make to the downstream applications
- HSBC Holdings plc is a British multinational universal bank and financial services holding company
- Core banking can be defined as a back-end system that processes banking transactions across the various branches of a bank
- The system essentially includes deposit, loan and credit processing Statement Generation
- Private Banking statement simplification which includes the detailed generation of Statements, Tax invoices, PNA advices
Test Lead
Mastech Infotrellis
Chennai
12.2018 - 12.2019
- Company Overview: RBS (Ahold Delhaize) has identified the need for a more efficient method of consuming customer data, which is currently spread across several legacy systems
- The company wants to create a single unified, trusted view of customer data which can help meet its broader business strategy, and establish a foundation for new technology areas
- Lead the Team
- Prepare Test Plan/Scenarios and Test Data and Test Cases
- Performed Data validation
- Supporting User testing by validating the Messages accordingly
- Execution of ETL from source to MDM using IBM Data stage tool
- Validation of Data movement between all the stages of ETL
- Performed Integration testing along with the clients to understand the E2E Flow of the System
- RBS (Ahold Delhaize) has identified the need for a more efficient method of consuming customer data, which is currently spread across several legacy systems
- The company wants to create a single unified, trusted view of customer data which can help meet its broader business strategy, and establish a foundation for new technology areas
Individual Contributor
Mastech Infotrellis
08.2018 - 11.2018
- Company Overview: Client has the data stored of all the alumni in the Salesforce through a DART mechanism using the Flat Files which was later became a real time constraint for loading/updating the data to SFDC
- So, they came up with an idea of replacing flat files with queues
- Prepare Test Plan/Scenarios and Test Data and Test Cases
- Tested the Event Trigger to see how the appropriate events are triggered through the messages in RabbitMQ
- Performed Data validation
- Supporting User testing by validating the Messages accordingly
- Analysing the Root Cause for the issues identified
- Performed Integration testing along with the clients to understand the E2E Flow of the System
- Validating the Messages to the Salesforce
- Client has the data stored of all the alumni in the Salesforce through a DART mechanism using the Flat Files which was later became a real time constraint for loading/updating the data to SFDC
- So, they came up with an idea of replacing flat files with queues
Test Lead
Mastech Infotrellis
09.2017 - 08.2018
- Company Overview: As part of the CDW inhouse maintenance to provide additional value to CDW consumers by incorporating additional means to - aggregate, classify and identify customers; eliminate existing inconsistencies; optimize and redesign existing processes in line with the current reality and eliminate data issues ensuring simplicity and ease of use
- Prepare Test Plan/Scenarios and Test Data and Test Cases
- Testing of the Load and Unload data from/into Lowe’s Customer Data Warehouse System Using Teradata Utilities
- Performed Data validation
- Prepare Handover documents and Summary Reports
- Supporting User testing by running jobs and providing the necessary details for their testing
- Analysing the Root Cause for the issues identified
- Worked in Agile Methodology in delivering the components by tracking through JIRA
- As part of the CDW inhouse maintenance to provide additional value to CDW consumers by incorporating additional means to - aggregate, classify and identify customers; eliminate existing inconsistencies; optimize and redesign existing processes in line with the current reality and eliminate data issues ensuring simplicity and ease of use
Mainframe Test Lead
Mastech Infotrellis
09.2017 - 08.2018
- Company Overview: As part of the CDW inhouse maintenance to provide additional value to CDW consumers by incorporating additional means to - aggregate, classify and identify customers; eliminate existing inconsistencies; optimize and redesign existing processes in line with the current reality and eliminate data issues ensuring simplicity and ease of use
- Prepare Test Plan/Scenarios and Test Data and Test Cases
- Testing of the Load and Unload data from/into Lowe’s Customer Data Warehouse System Using Teradata Utilities
- Performed Data validation
- Prepare Handover documents and Summary Reports
- Supporting User testing by running jobs and providing the necessary details for their testing
- Analysing the Root Cause for the issues identified
- Worked in Agile Methodology in delivering the components by tracking through JIRA
- As part of the CDW inhouse maintenance to provide additional value to CDW consumers by incorporating additional means to - aggregate, classify and identify customers; eliminate existing inconsistencies; optimize and redesign existing processes in line with the current reality and eliminate data issues ensuring simplicity and ease of use
Mainframe Test Lead
Mastech Infotrellis
06.2017 - 08.2017
- Company Overview: Retailer’s Customer Data Warehouse (CDW) currently generates CUS_ID (Customer Identifier) which is 9 digits integer
- This Project CUS_ID Expansion is intended to increase the 9-digit CUS ID to a 10-digit integer
- Lead the Team for internal and external testing
- Prepare Test Plan/Scenarios and Test Data and Test Cases
- Testing the Impacted components identified as part of this change
- Performed E2E testing for the impacted areas which are inbound and outbound to the customer data warehouse (CDW)
- Testing of the Load and Unload data from/into Lowe’s Customer Data Warehouse System Using Teradata Utilities
- Performed Data validation
- Supporting User testing by running jobs and providing the necessary details for their testing
- Analyzing the Root Cause for the issues identified
- Retailer’s Customer Data Warehouse (CDW) currently generates CUS_ID (Customer Identifier) which is 9 digits integer
- This Project CUS_ID Expansion is intended to increase the 9-digit CUS ID to a 10-digit integer
API Tester
Mastech Infotrellis
04.2017 - 05.2017
- Company Overview: As part of this there will be uniform taxation across India with the existing tax like VAT, service tax etc
- Being subsumed in the GST
- Preparation of Test Scenarios & Test cases
- Test data identification activity
- Reviewing Test Conditions and Test Execution
- Execution of Test Cases and updating in Version One tool
- Defect identification and tracking in Version One
- Reviewing Test results with clients and UAT users
- Defining test flow for comprising of all work stream
- Monitoring Test execution and assessing risks on schedule and effort
- Lead the Team on the execution and representing the testing team for the change
- Worked in Agile Methodology in delivering the components by tracking through version one tool
- As part of this there will be uniform taxation across India with the existing tax like VAT, service tax etc
- Being subsumed in the GST
Mainframe Tester
Mastech Infotrellis
09.2016 - 03.2017
- Company Overview: As part of the CDW Revamp DNB automation process to provide additional value to CDW consumers by incorporating additional means to - aggregate, classify and identify customers; eliminate existing inconsistencies; optimize and redesign existing processes in line with the current reality and eliminate data issues ensuring simplicity and ease of use
- Prepare Test Plan/Scenarios and Test Data and Test Cases
- Testing of the Load and Unload data from/into Lowe’s Customer Data Warehouse System Using Teradata Utilities
- Performed Data validation
- Prepare Handover documents and Summary Reports
- Supporting User testing by running jobs and providing the necessary details for their testing
- Analyzing the Root Cause for the issues identified
- As part of the CDW Revamp DNB automation process to provide additional value to CDW consumers by incorporating additional means to - aggregate, classify and identify customers; eliminate existing inconsistencies; optimize and redesign existing processes in line with the current reality and eliminate data issues ensuring simplicity and ease of use
Team Member
Cognizant Technology Solutions Corp.
07.2016 - 08.2016
- Company Overview: MHS is a Message handling system, which sends the Swift standard messages to all secured devices and to many applications as part of the Investment banking
- Preparing test plan and test scenarios for the UAT testing and be in line with the UAT team for testing
- Performing System/Functional Testing for the MHS changes if there are any
- Execute Regression test suite for any changes affecting the functional flow to test for the connectivity between the devices and applications
- Monitoring Test execution and assessing risks on schedule and effort
- Worked in Agile Methodology in delivering the components by tracking through Jira
- MHS is a Message handling system, which sends the Swift standard messages to all secured devices and to many applications as part of the Investment banking
Mainframe Tester
Cognizant Technology Solution Corp.
04.2015 - 06.2016
- Company Overview: Data Management consists of RS2 and Support Systems
- Data Management as the name suggests is the Reporting Services application, which produces various reports, which are consumed by both internal and external users
- Being Independent in the role being assigned for co coordinating all the upstream and downstream applications
- Reviewing Test results with clients and UAT users
- Automated the Policy Life Cycle Creation using Selenium as a Team
- Monitoring Test execution and assessing risks on schedule and effort
- Providing Estimation on the Scoping based on the efforts and resources availability
- Data Management consists of RS2 and Support Systems
- Data Management as the name suggests is the Reporting Services application, which produces various reports, which are consumed by both internal and external users
Production support
Cognizant Technology Solutions Corp.
09.2014 - 03.2015
- Company Overview: Ace Hardware is one of the leading co-operative retailers in the United States
- By sales the company is the #1 hardware cooperative in the US
- Implementing data and code Fix for the issues being encountered on regular basis as and on needed
- Performing Test execution and assessing risks on schedule and effort
- Ace Hardware is one of the leading co-operative retailers in the United States
- By sales the company is the #1 hardware cooperative in the US
Mainframe Tester
Tata Consultancy Services
08.2011 - 08.2014
- Company Overview: OGRDS is a One Global Reference Data System built for facilitating the global users to code the products and its related characteristics with region / country specific information
- Preparation of Test Plan & Test cases
- Test data identification activity
- Reviewing Test Conditions and Test Execution
- Execution of Test Cases in Quality Centre and in applications
- Defect identification and tracking in Quality Centre Project
- Reviewing Test results with clients and UAT users
- Defining test flow for comprising of all work stream
- Monitoring Test execution and assessing risks on schedule and effort
- Data comparison and Data validation
- OGRDS is a One Global Reference Data System built for facilitating the global users to code the products and its related characteristics with region / country specific information
Education
B. Tech - Information Technology
SASTRA University
Thanjavur, INSkills
Mainframes
JCL
COBOL
DB2
CICS
IBM MDM
undefinedDomains Worked
- Retail
- Insurance
- Banking
- Travel & Hospitality
Timeline
Senior Automation Tester
IBM
11.2023 - Current
Senior Test Analyst
IBM India Pvt Ltd
03.2022 - 10.2023
Test Lead
Mastech Infotrellis
12.2018 - 12.2019
Individual Contributor
Mastech Infotrellis
08.2018 - 11.2018
Test Lead
Mastech Infotrellis
09.2017 - 08.2018
Mainframe Test Lead
Mastech Infotrellis
09.2017 - 08.2018
Mainframe Test Lead
Mastech Infotrellis
06.2017 - 08.2017
API Tester
Mastech Infotrellis
04.2017 - 05.2017
Mainframe Tester
Mastech Infotrellis
09.2016 - 03.2017
Team Member
Cognizant Technology Solutions Corp.
07.2016 - 08.2016
Mainframe Tester
Cognizant Technology Solution Corp.
04.2015 - 06.2016
Production support
Cognizant Technology Solutions Corp.
09.2014 - 03.2015
Mainframe Tester
Tata Consultancy Services
08.2011 - 08.2014
B. Tech - Information Technology
SASTRA University
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