Balaji Ammasi
Smyrna,GA
Summary
Over 13 years of IT experience specializing in Large Enterprise Data Warehouses and Data Processing Pipelines in Retail and Banking sectors. Proficient in Google Cloud Platform, Oracle PL SQL, and Netezza SQL, with a focus on Agile methodologies and CI/CD practices. Demonstrated ability in designing data models and implementing data pipelines using Python, resulting in enhanced application reliability and improved data quality. Extensive background in managing development, design, and delivery of database solutions, complemented by strong communication and organizational skills.
Overview
13
13
years of professional experience
1
1
Certification
Work History
EDW System Engineer
The Home Depot Inc
Atlanta, Georgia
11.2018 - Current
- Designed and implemented CI/CD data pipelines to enhance data processing efficiency.
- Developed ETL processes for consolidation of diverse data sources into centralized warehouse.
- Conducted analysis of complex datasets to identify trends informing strategic decisions.
- Created OLAP cubes with AtScale semantic layer to improve data accessibility.
- Migrated Jenkins CI/CD jobs to Dataform, boosting system efficiency.
- Automated data quality checks and error-handling processes to uphold dataset integrity.
- Managed application version control and deployment utilizing Git, Docker, and Jenkins.
- Monitored system performance and reliability to ensure operational stability.
Technical Lead/Developer
BMO Bank of Montreal
Chennai, India
07.2016 - 10.2018
- Formulated and estimated timelines for design, coding, and unit testing phases.
- Executed SQL scripting, including Netezza stored procedures for efficient data manipulation.
- Conducted quality assurance to verify software functionality and uphold performance standards.
- Managed deployment processes to ensure seamless application updates.
- Converted complex IDP data processes into MDM XML for key business lines.
- Mentored junior associates in project comprehension and technical skill enhancement.
- Supported QA teams during UAT and DIT phases for thorough evaluation.
- Engaged stakeholders in transitioning from ETL to ELT solutions without business disruption.
IT Analyst/Developer
AC Nielsen
Chennai, India
07.2012 - 08.2016
- Developed robust code to synchronize 100 million records across six Netezza servers in two data centers.
- Executed migration of existing applications to Cloud Snowflake environment, enhancing scalability.
- Led critical application deployment phases, ensuring seamless execution of updates.
- Transformed ETL solutions into ELT through collaboration with stakeholders, maintaining business requirements.
- Served as SME for Trend Anywhere application, ensuring accurate retailer sales data access.
- Applied fixes to DataStage jobs and managed production migration activities effectively.
- Documented and analyzed data warehouse metadata for AC Nielsen retail applications.
- Implemented Agile software methodology for incremental feature additions and timely releases.
Education
Bachelor of Engineering - Electrical and Electronics Engineering
K.S.Rangasamy College of Technology
Chennai, India01.2011
Skills
- AtScale BI solutions
- CI/CD data pipeline development
- GCP Dataform cloud platform migration
- Jenkins and Groovy scripting
- Structured Query Language (SQL)
- BigQuery analytics
- Google Cloud Storage
- Kubernetes Engine (GKE)
- GitHub version control (Bash and GUI)
- Python programming
- PostgreSQL data export
- Data analysis
- AI tools, including GitHub Copilot, Gemini, and M365 productivity suite
- Cloud services, including Hadoop, Sqoop, Hive,
- IBM Maestro Scheduler and Autosys Scheduler
- Jira and Pivotal Tracker project management
- Zendesk customer support platform and ServiceNow ITSM
Certification
- 2025 Google Cloud Professional Architect
- 2025 Github Copilot
- 2024 Docker & Kubernetes
- 2023 AtScale Platform
- 2022 Google Cloud Platform Associate Engineering
- 2021 SRE GCP Foundation
Areas/Applications
- Retail and Market Research.
- Banking and Financial Services domain
- Data warehousing and Business Intelligence (BI).
- Google Cloud Platform
- AtScale Platform
Timeline
EDW System Engineer
The Home Depot Inc
11.2018 - Current
Technical Lead/Developer
BMO Bank of Montreal
07.2016 - 10.2018
IT Analyst/Developer
AC Nielsen
07.2012 - 08.2016
Bachelor of Engineering - Electrical and Electronics Engineering
K.S.Rangasamy College of Technology
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