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Sash Pillai

@sashankpillai

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I'm a Data Engineer specializing in scalable ETL, automation, and cloud data solutions on AWS and GCP.

India

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What I'm looking for

I'm seeking a data engineering role focused on scalable ETL, automation, and cloud-native (AWS/GCP) solutions in a collaborative team that values impact, quality, and growth.

I'm a Data Engineer with two years of experience building data pipelines, automating workflows, and architecting cloud-based solutions on AWS and GCP. I focus on scalable ETL, data warehousing, and reliable reporting to drive business outcomes.

At Kotak Mahindra Bank I delivered 100+ compliance reports using SQL and optimized data extraction while spearheading ETL pipeline development with Python, Redshift, S3, and Airflow. I configured MWAA DAGs to validate data in over 100 migrated tables and increased efficiency by 91% through automated reconciliation scripts.

I also designed cloud-native S3 event–triggered Lambda pipelines, implemented Spark and Glue workflows for campaign analytics, and achieved a 98% acceptance rate in TransUnion CIBIL reporting that contributed to internal data quality awards. Earlier, as a Lead Software Engineer I built a B2C SaaS for web automation, grew recurring revenue by 25%, and integrated a CNN for checkout automation.

I bring hands-on expertise in SQL, PySpark, Python, and cloud infrastructure, and I enjoy solving complex data problems, automating repetitive tasks, and delivering reliable, production-grade pipelines that scale. I'm eager to join teams that value quality, automation, and measurable impact.

Experience

Work history, roles, and key accomplishments

Current

Data Engineer

Current

Kotak Mahindra Bank

Jul 2023 - Present (2 years 2 months)

Led development of ETL pipelines and delivered 100+ compliance reports using SQL, improving regulatory adherence; increased reconciliation efficiency by 91% through Python automation and designed S3/Lambda-based cloud-native pipelines. Configured MWAA DAGs for 100+ migrated tables and achieved >98% acceptance in TransUnion CIBIL reporting.

Pyspark Python Airflow AWS Glue Amazon Redshift S3 AWS Lambda SQL

Lead Software Engineer

No-Brainer Co.

Feb 2021 - Jun 2023 (2 years 4 months)

Led development of a B2C SaaS web automation platform, implementing test-driven scraping and APIs that drove 25% recurring monthly revenue growth and supported 1,000+ concurrent users. Automated provisioning with Terraform and containerized deployments, improving operational efficiency 50% and reducing error rate 15%.

MongoDB Terraform Docker Selenium Python REST APIs

Data Engineer Intern

Kotak Mahindra Bank

Jun 2022 - Aug 2022 (2 months)

Documented and mapped the credit card data warehouse by creating a holistic data flow diagram, improving root-cause analysis and debugging efficiency. Gained practical exposure to data warehouse concepts and SQL.

Data Warehousing SQL Data Modeling ETL Documentation Root Cause Analysis

Education

Degrees, certifications, and relevant coursework

Thadomal Shahani Engineering College

Bachelor of Engineering, Electronics & Telecommunication

2019 - 2023

Grade: 8.60/10

Activities and societies: Relevant coursework: Big Data Analytics; Data Structures; Linux; NLP; Project Management; Python.

Bachelor of Engineering in Electronics & Telecommunication completed with a CGPA of 8.60/10. Completed coursework in Big Data Analytics, Data Structures, Linux, NLP, Project Management, and Python.