Sachikanta Das
Data Engineer | Deloitte USI
- Role
- Data Engineer at Deloitte
- Location
- Kolkata, WB, IN
- LinkedIn followers
- 500 followers
Experience
Data Engineer
Dec 2022 — Present
Loaded raw data from source to S3 bucket; utilized AWS Data Processing Frameworks such as EMR and S3. Migrated and optimized ETL pipelines from Informatica PowerCenter to Python, PySpark, and AWS Glue. Automated complex workflows using Airflow DAGs, reducing manual effort by 40%. Developed data quality checks using PySpark and SQL, reducing validation time by 40%. Optimized Glue jobs and Python/SQL scripts, achieving a 30% reduction in job execution time. Participated in architectural validation of tables and materialized views; performed regression testing and root cause analysis. Reduced redundant data storage by 50% and cut overhead by 75%. Designed data models for evaluating AI tools to support decision-making. Supported ADF to Snowflake migration; created views, tables, stored procedures; tested metadata and validated Power BI reports.
Education
CHANDIGARH UNIVERSITY
Master of Computer Applications
2024 — 2026
Netaji Subhash Engineering College
Bachelor of Computer Applications
2019 — 2022
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