Open to opportunities

Nantha Kumar

@nanthakumar1

Message

I build scalable banking data pipelines across AWS, Snowflake, and Spark.

India

Message

What I'm looking for

I'm looking to build and optimise scalable cloud data platforms, ETL/ELT pipelines, and warehouse solutions, particularly for analytics and regulated financial data. I value opportunities to work with AWS, Snowflake, Spark, production operations, and Agile teams.

I've built and maintained data pipelines and warehouse layers for banking and investment analytics teams at FujiSakura Technologies Private Ltd.

I led the migration of legacy Oracle banking data into an AWS data lake and Snowflake, covering source-to-target mapping, target data model design, and production cutover. I also supported live production pipelines through issue triage, root-cause analysis, recovery, and permanent post-incident fixes.

I build PySpark ETL/ELT workflows on AWS Glue and Amazon EMR, process CSV, JSON, and Parquet data, and design star schemas with SCD Type 2 history for regulatory reporting.

I've automated serverless workflows with Lambda and Step Functions, orchestrated resilient Airflow DAGs, tuned Spark and SQL workloads, and built reconciliation checks for legacy-to-cloud data validation. I work closely with analysts and business users to turn financial reporting requirements into curated datasets.

Experience

Work history, roles, and key accomplishments

Data Engineer

FujiSakura Technologies Private Ltd

Sep 2022 - Jun 2026 (3 years 9 months)

Designed and maintained data pipelines and warehouse layers for banking analytics. Led migration of legacy Oracle data to AWS data lake and Snowflake, and automated workflows using Lambda and Step Functions.