About

/Manisharan T/

Work

  1. Commerce Bank

    Aug 2024 – Jul 2026

    Contract Data Engineer · St. Louis, MO

    • Led the move of a 50TB on-premises data platform to the cloud, cutting infrastructure overhead by 20% and saving $60K a year in compute.
    • Brought the financial close process down from 30 minutes to 60 seconds.
    • Turned two days of manual checks on 100+ weekly reconciliation files into near real-time validation, saving $54K+ a year.
    • Put access controls, validation rules and audit logging in place to keep 10+ downstream reporting teams SOX-compliant.

  2. Kaiser

    Nov 2020 – Jul 2023

    Data Engineer · Hyderabad, India

    • Built the pipelines that ingest, clean and join healthcare data from multiple source systems, making 300M+ records a year available sooner.
    • Automated reporting, cutting turnaround from 5 hours to 45 minutes.
    • Raised data accuracy from 80% to 99% across 30+ healthcare tables with schema and integrity testing.
    • Remodeled 30+ tables into a star schema, saving $10K a year in warehouse costs.

  3. Amazon

    Aug 2019 – Oct 2020

    Data Analyst · Hyderabad, India

    • Analyzed 50M+ customer call records to find workflow bottlenecks, cutting average wait time by 67% (3 minutes to 60 seconds).
    • Lifted agent CSAT from 65% to over 75% through data-backed performance improvements.
    • Replaced manual spreadsheet reporting with automated pipelines, saving $30K a year and 20+ hours a week.
    • Built 5 near real-time dashboards that replaced manual reporting and sped up decisions.

Skills

Languages
  • Python
  • SQL
  • T-SQL
  • Java
Processing
  • Apache Spark (PySpark, Spark SQL)
  • Delta Lake
Cloud
  • AWS (S3, Glue, Athena, Lambda, EC2, RDS, IAM)
  • Azure (Data Lake Storage, Key Vault, Logic Apps, Monitor)
  • Databricks (Unity Catalog, Lakeflow, Asset Bundles)
Data Warehousing
  • Snowflake
  • Amazon Redshift
  • Medallion lakehouse
  • Star schema modeling
Orchestration
  • Apache Airflow
  • dbt
  • Azure Data Factory
  • Databricks Workflows
Databases
  • SQL Server
  • Oracle
  • PostgreSQL
  • MySQL
BI
  • Tableau
  • Power BI
DevOps & Testing
  • Git
  • Azure DevOps (CI/CD)
  • Terraform
  • Docker
  • PyTest
  • Jira

In Solidarity With

  • Women and Child Empowerment
  • Minorities' Rights
  • Ending Racism
  • Corruption-Free India
  • Trans Rights