Vamsi Nalajala
@vamsinalajala
I build real-time, governed data platforms for financial analytics.
United StatesWhat I'm looking for
I'm building real-time transaction risk and fraud analytics data platforms at American Express, processing 10M+ daily card transaction events with Kafka, Spark Structured Streaming, AWS EMR, Databricks, and Snowflake-oriented transformation practices.
I design governed Medallion Architecture pipelines, self-service data discovery frameworks, and reusable feature pipelines for fraud, risk, compliance, and analytics teams. My work has reduced ingestion latency by 60%, improved feature freshness by 70%, maintained 99%+ pipeline uptime, and cut infrastructure deployment time by 80% through Terraform and CI/CD.
Previously, I built Snowflake CDC pipelines and high-throughput Spark transformations at Tech Mahindra, and delivered SQL Server ETL, Python validation, and Power BI reporting solutions at Accenture. I bring hands-on experience translating operational requirements into reliable, auditable data products for enterprise and regulated environments.
Experience
Work history, roles, and key accomplishments
Built real-time Kafka and Spark Structured Streaming ingestion pipelines on AWS EMR, reducing latency by 60%. Designed Medallion Architecture on Databricks Lakehouse and implemented self-service data governance with Unity Catalog.
Built Snowflake data warehouse pipelines using Snowpark and Streams & Tasks for CDC, processing 50GB+ daily with 99.9% uptime. Migrated ETL jobs from Pandas to PySpark, cutting runtime by 65%.
Built SQL Server ETL pipelines using Python and SSIS, reducing report generation time by 60%. Developed Power BI dashboards and supported data migration from Oracle to SQL Server.
Education
Degrees, certifications, and relevant coursework
State University of New York at Buffalo
Master of Science, Computer Science
2023 - 2025
Grade: 3.83 / 4.0
Pursued a Master of Science in Computer Science, achieving a GPA of 3.83 out of 4.0.
Tech stack
Software and tools used professionally
Amazon Redshift
Snowflake
Azure Synapse
AWS Glue
AWS IAM
Amazon EC2
Microsoft Azure
Amazon S3
AWS CodePipeline
NumPy
Pandas
PySpark
dbt
Oracle
Hadoop
Terraform
Azure DevOps
JavaScript
Python
Java
Scala
MLflow
scikit-learn
Kafka
Amazon Kinesis
AWS Lambda
Amazon RDS
Azure SQL Database
Visual Studio Code
Git
Airflow
Amazon EMR
Amazon Athena
SQL
Delta Lake
Great Expectations
Unity Catalog
Power BI
Apache Kafka
Availability
Location
United StatesAuthorized to work in
Salary expectations
Social media
Job categories
Skills
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