Summary
Overview
Work History
Education
Skills
Timeline
Generic

Vaishnavi S

Chennai

Summary

Dynamic Technical Lead specializing in ETL development and data integration. Skilled in optimizing workflows and enhancing performance through advanced SQL and Informatica skills. Adept at problem-solving and fostering collaboration within Agile teams to deliver high-quality data solutions. Passionate about data analytics and reporting.

  • ETL Design and Optimization: Expert in designing, developing, and optimizing efficient ETL workflows using apps like Informatica and SQL.
  • Cloud Data Engineering: Hands-on experience with cloud platforms (AWS) to secure data storage, and to ensure seamless integration and optimized data flow across environments.
  • Data Integration and Transformation: Skilled in integrating various data sources, including databases, APIs, flat files, and third-party applications, ensuring high-quality data integration that supports real-time analytics and reporting.
  • Agile Execution: Experienced in PI planning, backlog management, and feature development using Jira.

Overview

11
11
years of professional experience

Work History

Technical Lead

Tata Consultancy Services
06.2021 - Current

MUFG Bank Ltd., | Data analysis and ETL Development team

  • Design the data model, create and test Informatica interfaces, and manage end-to-end deliverables from offshore.
  • Data product development enabling end-to-end data migration and transformation in Informatica.
  • Created multiple reusable assets and scripts to automate processes, including Informatica mapping, test data generator scripts, Informatica job execution scripts with restart ability features, and deployment scripts.
  • Enhancing the current code for better performance and convenience.
  • I worked on a product tool upgrade.
  • Ensure data governance, security, and compliance, focusing on data lineage tracking and transparency.
  • Following the Agile/Scrum process, including sprint planning, daily scrums, sprint reviews, and sprint retrospectives.
  • Define and prioritize product features, ensuring clear requirements and user stories in Jira, and attending backlog refinement sessions.
  • Worked in development, testing, production migrations, and go-live support.

Senior ETL Developer

Cognizant Technology Solutions
08.2019 - 09.2020

AXAXL | ETL Development team

  • Work with the client to fetch the business needs, and work on them with the team.
  • Coordinate with the source teams and various ownership teams.
  • Migrate the enhanced code to the higher environment.
  • Assign tasks to team members, and involve them in the enhancement activity.
  • Weekly status report calls updates.
  • Upgrade the tool to a higher version.

ETL Informatica Developer

Cognizant Technology Solutions
03.2016 - 07.2019

AMGEN, (BREDA-Europe) | ETL enhancement and Production Support Team

  • Monitoring daily jobs and providing resolutions in case of failures.
  • Providing solutions for incidents requested.
  • Enhancing the current product for better performance and convenience.
  • Deploying the changes through CRs for production.
  • Prepared and reviewed detailed test scenarios and test cases covering SRT.
  • Prepared and reviewed the SQL scripts, and tuned the queries for faster execution.
  • Preparation of the Requirement Specification document, Detailed Design Document, developed for major/minor enhancements.

ETL Developer

Cognizant Technology Solutions
10.2014 - 02.2016

Novartis, UK (Concerto) | ETL Development Team

  • Requirement Analysis.
  • Design and Build (involves policy rule coding, sequence flow creation).
  • Development of new or modifying existing mappings, as per requirements, through the ETL tool.
  • Unit Testing.
  • Prepared and reviewed detailed test scenarios and test cases covering SRT.
  • Preparation of the Requirement Specification document, Detailed Design Document, developed for major/minor enhancements.

Education

Bachelor of Computer Science -

Madras University

Master of Business Administration (HR) -

Madras University

Skills

  • ETL Development: Automate data extraction, transformation, and loading across a variety of data systems, and improve ETL workflow performance by fine-tuning Informatica sessions and mappings
  • SQL: Advanced SQL skills for querying, manipulating, and transforming data in relational databases
  • Data Integration: Experienced in integrating diverse data sources, such as databases, flat files, and APIs
  • Data Quality & Validation: To identify, cleanse, and transform data to maintain consistency and accuracy across systems
  • Performance optimization: Proven ability to optimize SQL queries for performance, improving query execution times, and optimizing resource consumption in large datasets
  • Problem-Solving & Troubleshooting: Strong troubleshooting skills, identifying and resolving issues in ETL workflows and SQL queries, ensuring minimal disruptions in data processing

TECHNOLOGIES & TOOLS:

  • ETL Tools: Informatica 9x/10x, Datastage
  • Cloud and Databases: SQL Server, Toad for Oracle, Teradata, and AWS

Timeline

Technical Lead

Tata Consultancy Services
06.2021 - Current

Senior ETL Developer

Cognizant Technology Solutions
08.2019 - 09.2020

ETL Informatica Developer

Cognizant Technology Solutions
03.2016 - 07.2019

ETL Developer

Cognizant Technology Solutions
10.2014 - 02.2016

Bachelor of Computer Science -

Madras University

Master of Business Administration (HR) -

Madras University
Vaishnavi S