Vedavalli S
Data Engineer
Chennai
Summary
Data Engineer with 12+ years of experience in data warehousing, ETL, cloud-based data integration, QA, and Automation across web and mobile platforms. Specialized in Snowflake development with expertise in AWS S3 and SQL. Proven track record of designing and optimizing scalable data pipelines, migrating enterprise datasets from Oracle to Snowflake, and implementing automation solutions using Snowpipe, Streams, and Tasks. Adept at Agile methodologies and cross-functional collaboration.
Overview
13
13
years of professional experience
Work History
Senior Technical Lead
Alten Calsoft Labs
Chennai
09.2022 - 02.2025
- Developed and deployed Snowpipe pipelines with AWS S3, Snowflake, and SQL, automating ingestion of structured and semi-structured data to support scalable data warehousing and analytics.
- Implemented Snowflake Streams and Tasks to capture DML changes and automate downstream workflows, ensuring real-time data consistency across systems.
- Developed stored procedures, UDFs, and zero-copy clones in Snowflake to enable efficient data backup, testing, and release management.
- Optimized large-scale ETL pipelines, improving query performance and reducing processing times by 30%, resulting in faster analytics delivery.
Project Lead
Cognizant Technology Solutions
Chennai
04.2021 - 09.2022
- Contributed to enterprise-wide data migration from Oracle to Snowflake using Informatica IICS, ensuring smooth transition of large-scale financial datasets.
- Configured DB connection managers in IICS to load data from Oracle sources into transient Snowflake tables for downstream processing.
- Implemented robust data validation checks (functional, master data, and null validations) to maintain data quality and accuracy.
- Developed an error logging framework to track and report disqualified data prior to target system loads, improving data transparency and auditability.
- Optimized ETL pipelines and streamlined database design, reducing data processing times and improving performance.
- Collaborated on ETL development and maintenance tasks, ensuring pipeline stability and data integrity throughout migration projects.
Automation Test Engineer
Tata Consultancy Services
Chennai
10.2015 - 03.2021
- Developed automation frameworks using Selenium and Cucumber.
- Conducted BDD testing, defect tracking (JIRA), and CI using Git and Maven.
- Delivered testing solutions for clients like CitiBank and Standard Chartered.
Associate Data Engineer
Accenture Services Pvt. Ltd
Chennai
04.2012 - 12.2014
- Delivered application support and performance improvements for Pitney Bowes.
- Ensured system integrity and coordinated updates with development teams.
Education
MCA -
Loyola College, Pondicherry University
Chennai01.2014
BCA -
KCS Kasi Nadar College, Madras University
Chennai01.2011
Skills
- Languages: SQL, Java
- Databases: Snowflake, Oracle
- Cloud: AWS S3
- ETL/Tools: Informatica IICS, Jenkins, Control-M, Git, JIRA, VersionOne
- Frameworks/Testing Tools: Selenium, Cucumber, JUnit, TestNG, Maven
Declaration
I hereby declare that all the above statements are true to the Best of my knowledge.
Sincerely,
Vedavalli.s
Timeline
Senior Technical Lead
Alten Calsoft Labs
09.2022 - 02.2025
Project Lead
Cognizant Technology Solutions
04.2021 - 09.2022
Automation Test Engineer
Tata Consultancy Services
10.2015 - 03.2021
Associate Data Engineer
Accenture Services Pvt. Ltd
04.2012 - 12.2014
MCA -
Loyola College, Pondicherry University
BCA -
KCS Kasi Nadar College, Madras University
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