Tarun Kumar Sahu

Experience

1. Senior Associate - Data Engineer

   Genpact

   Dec 2023 — Present · Kolkata, IN

   Managed and optimized cloud infrastructure on AWS, contributing to the stability and performance of critical business applications.• Led deployment checks on code pushed to S3 buckets, diagnosed failures in AWS Code-Pipeline stages by reviewing Code Build logs and CloudWatch events, reducing pipeline failure rate by 30%.• Led a large-scale data migration of 500K+ records from on-premises Oracle to Delta Lake on Databricks, engineered an optimized partitioning strategy that increased query performance by 40%.• Configured custom CloudWatch metrics and dashboards for EC2, ECS, and RDS environments; established automated alerts to ensure on-call teams met SLAs for high-priority incidents.• Executed a one‑time data migration on Databricks using SQL to extract, transform and load data from source systems into Delta Lake, enabling initial deployment and ensuring end‑to‑end data integrity.• Created and optimized single‑source‑of‑truth (SOT) tables in the Silver layer of the Databricks Delta Lake architecture, standardizing cleansed data for reliable downstream analytics: AWS (EC2, S3, VPC, IAM, CloudWatch, Code Pipeline, Lambda, SNS), Terraform, Databricks, Delta Lake, Git/GitHub.

Education

• Jawahar Navodaya Vidyalaya (JNV)

  12th

  2010 — 2017

• Maulana Azad National Institute of Technology

  B.tech

  2019 — 2023